Feb 1, 2023 · AI classifier for indicating AI-written text Topics detector openai gpt gpt-2 gpt-detector gpt-3 openai-api llm prompt-engineering chatgpt chatgpt-detector GPT-2 is a transformers model pretrained on a very large corpus of English data in a self-supervised fashion. This means it was pretrained on the raw texts only, with no humans labelling them in any way (which is why it can use lots of publicly available data) with an automatic process to generate inputs and labels from those texts.Let’s assume we train a language model on a large text corpus (or use a pre-trained one like GPT-2). Our task is to predict whether a given article is about sports, entertainment or technology. Normally, we would formulate this as a fine tuning task with many labeled examples, and add a linear layer for classification on top of the language ...Educator FAQ. Like the internet, ChatGPT is a powerful tool that can help educators and students if used thoughtfully. There are many ways to get there, and the education community is where the best answers will come from. To support educators on this journey, we are providing a few resources below, including links to introductory materials ...GPT-3 (Generative Pre-trained Transformer 3) is an advanced language processing AI model developed by OpenAI, with over 175 billion parameters. GPT-3 is trained on a massive amount of diverse text data from the internet and is capable of many things, including text categorization.After ensuring you have the right amount and structure for your dataset, and have uploaded the file, the next step is to create a fine-tuning job. Start your fine-tuning job using the OpenAI SDK: python. Copy . openai.FineTuningJob.create (training_file="file-abc123", model="gpt-3.5-turbo") The OpenAI API is powered by a diverse set of models with different capabilities and price points. You can also make customizations to our models for your specific use case with fine-tuning. Models. Description. GPT-4. A set of models that improve on GPT-3.5 and can understand as well as generate natural language or code. GPT-3.5.Viable helps companies better understand their customers by using GPT-3 to provide useful insights from customer feedback in easy-to-understand summaries. Using GPT-3, Viable identifies themes, emotions, and sentiment from surveys, help desk tickets, live chat logs, reviews, and more. It then pulls insights from this aggregated feedback and ...Oct 18, 2022 · SetFit is outperforming GPT-3 in 7 out of 11 tasks, while being 1600x smaller. In this blog, you will learn how to use SetFit to create a text-classification model with only a 8 labeled samples per class, or 32 samples in total. You will also learn how to improve your model by using hyperparamter tuning. You will learn how to: Jan 31, 2023 · The new GPT-Classifier attempts to figure out if a given piece of text was human-written or the work of an AI-generator. While ChatGPT and other GPT models are trained extensively on all manner of text input, the GPT-Classifier tool is "fine-tuned on a dataset of pairs of human-written text and AI-written text on the same topic." So instead of ... Mar 7, 2023 · GPT-2 is not available through the OpenAI api, only GPT-3 and above so far. I would recommend accessing the model through the Huggingface Transformers library, and they have some documentation out there but it is sparse. There are some tutorials you can google and find, but they are a bit old, which is to be expected since the model came out ... OpenAI has taken down its AI classifier months after it was released due to its inability to accurately determine whether a chunk of text was automatically generated by a large language model or written by a human. "As of July 20, 2023, the AI classifier is no longer available due to its low rate of accuracy," the biz said in a short statement ...Jul 1, 2021 Source: https://thehustle.co/07202020-gpt-3/ This is part one of a series on how to get the most out of GPT-3 for text classification tasks ( Part 2, Part 3 ). In this post, we’ll...Jan 31, 2023 · The new GPT-Classifier attempts to figure out if a given piece of text was human-written or the work of an AI-generator. While ChatGPT and other GPT models are trained extensively on all manner of text input, the GPT-Classifier tool is "fine-tuned on a dataset of pairs of human-written text and AI-written text on the same topic." So instead of ... Step 2: Deploy the backend as a Google Cloud Function. If you don’t have one already, create a Google Cloud account, then navigate to Cloud Functions. Click Create Function. Paste in your ...After ensuring you have the right amount and structure for your dataset, and have uploaded the file, the next step is to create a fine-tuning job. Start your fine-tuning job using the OpenAI SDK: python. Copy . openai.FineTuningJob.create (training_file="file-abc123", model="gpt-3.5-turbo")As a top-ranking AI-detection tool, Originality.ai can identify and flag GPT2, GPT3, GPT3.5, and even ChatGPT material. It will be interesting to see how well these two platforms perform in detecting 100% AI-generated content. OpenAI Text Classifier employs a different probability structure from other AI content detection tools. Jul 26, 2023 · OpenAI has taken down its AI classifier months after it was released due to its inability to accurately determine whether a chunk of text was automatically generated by a large language model or written by a human. "As of July 20, 2023, the AI classifier is no longer available due to its low rate of accuracy," the biz said in a short statement ... Text classification is a very common problem that needs solving when dealing with text data. We’ve all seen and know how to use Encoder Transformer models li...Mar 14, 2023 · GPT-4 incorporates an additional safety reward signal during RLHF training to reduce harmful outputs (as defined by our usage guidelines) by training the model to refuse requests for such content. The reward is provided by a GPT-4 zero-shot classifier judging safety boundaries and completion style on safety-related prompts. Data augmentation is a widely employed technique to alleviate the problem of data scarcity. In this work, we propose a prompting-based approach to generate labelled training data for intent classification with off-the-shelf language models (LMs) such as GPT-3. An advantage of this method is that no task-specific LM-fine-tuning for data ...1. AI Text Classifier AI Text Classifer comes straight from the source: ChatGPT developer OpenAI. It seems a little awkward for ChatGPT to evaluate itself, but since it’s an AI, it probably...Mar 25, 2021 · Viable helps companies better understand their customers by using GPT-3 to provide useful insights from customer feedback in easy-to-understand summaries. Using GPT-3, Viable identifies themes, emotions, and sentiment from surveys, help desk tickets, live chat logs, reviews, and more. It then pulls insights from this aggregated feedback and ... Path of transformer model - will load your own model from local disk. In this tutorial I will use gpt2 model. labels_ids - Dictionary of labels and their id - this will be used to convert string labels to numbers. n_labels - How many labels are we using in this dataset. This is used to decide size of classification head. Jan 23, 2023 · Today I am going to do Image Classification using Chat-GPT , I am going to classify fruits using deep learning and VGG-16 architecture and review how Chat G... College professors see AI Classifier’s discontinuation as a sign of a bigger problem: A.I. plagiarism detectors do not work. The logos of OpenAI and ChatGPT. AFP via Getty Images. As of July 20 ...After ensuring you have the right amount and structure for your dataset, and have uploaded the file, the next step is to create a fine-tuning job. Start your fine-tuning job using the OpenAI SDK: python. Copy . openai.FineTuningJob.create (training_file="file-abc123", model="gpt-3.5-turbo") Size of word embeddings was increased to 12888 for GPT-3 from 1600 for GPT-2. Context window size was increased from 1024 for GPT-2 to 2048 tokens for GPT-3. Adam optimiser was used with β_1=0.9 ...Classification. The Classifications endpoint ( /classifications) provides the ability to leverage a labeled set of examples without fine-tuning and can be used for any text-to-label task. By avoiding fine-tuning, it eliminates the need for hyper-parameter tuning. The endpoint serves as an "autoML" solution that is easy to configure, and adapt ...The key difference between GPT-2 and BERT is that GPT-2 in its nature is a generative model while BERT isn’t. That’s why you can find a lot of tech blogs using BERT for text classification tasks and GPT-2 for text-generation tasks, but not much on using GPT-2 for text classification tasks.1. AI Text Classifier AI Text Classifer comes straight from the source: ChatGPT developer OpenAI. It seems a little awkward for ChatGPT to evaluate itself, but since it’s an AI, it probably...GPTZero app readily detects AI-generated content thanks to perplexity and burstiness analysis. But OpenAI text classifier struggles. Robotext is on the rise, but AI text screening tools can vary wildly in their ability to differentiate between human- and machine-written web content. Image credit: Shutterstock Generate.Jan 31, 2023 · OpenAI has released an AI text classifier that attempts to detect whether input content was generated using artificial intelligence tools like ChatGPT. "The AI Text Classifier is a fine-tuned GPT ... Introduction. Machine Learning is an iterative process that helps developers & Data Scientists write an algorithm to make predictions, which will allow businesses or individuals to make decisions accordingly. ChatGPT, as many of you already know, is the ChatBot that will help humans avoid doing google research and find answers to their questions.As a top-ranking AI-detection tool, Originality.ai can identify and flag GPT2, GPT3, GPT3.5, and even ChatGPT material. It will be interesting to see how well these two platforms perform in detecting 100% AI-generated content. OpenAI Text Classifier employs a different probability structure from other AI content detection tools.Feb 2, 2023 · The classifier works best on English text and works poorly on other languages. Predictable text such as numbers in a sequence is impossible to classify. AI language models can be altered to become undetectable by AI classifiers, which raises concerns about the long-term effectiveness of OpenAI’s tool. OpenAI has released an AI text classifier that attempts to detect whether input content was generated using artificial intelligence tools like ChatGPT. "The AI Text Classifier is a fine-tuned GPT ...Jul 8, 2021 · We I have fine-tuned a GPT-2 model with a language model head on medical triage text, and would like to use this model as a classifier. However, as far as I can tell, the Automodel Huggingface library allows me to have either a LM or a classifier etc. head, but I don’t see a way to add a classifier on top of a fine-tuned LM. Some of the examples demonstrated here currently work only with our most capable model, gpt-4. If you don't yet have access to gpt-4 consider joining the waitlist. In general, if you find that a GPT model fails at a task and a more capable model is available, it's often worth trying again with the more capable model.The classifier works best on English text and works poorly on other languages. Predictable text such as numbers in a sequence is impossible to classify. AI language models can be altered to become undetectable by AI classifiers, which raises concerns about the long-term effectiveness of OpenAI’s tool.1. @NicoLi interesting. I think you can utilize gpt3 for this, yes. But you most likely would need to supervise the outcome. I think you could use it to generate descriptions and then adapt them by hand if necessary. would most likely drastically speed up the process. – Gewure. Nov 9, 2020 at 18:50.1. @NicoLi interesting. I think you can utilize gpt3 for this, yes. But you most likely would need to supervise the outcome. I think you could use it to generate descriptions and then adapt them by hand if necessary. would most likely drastically speed up the process. – Gewure. Nov 9, 2020 at 18:50.Jan 31, 2023 · OpenAI has released an AI text classifier that attempts to detect whether input content was generated using artificial intelligence tools like ChatGPT. "The AI Text Classifier is a fine-tuned GPT ... Jan 23, 2023 · Today I am going to do Image Classification using Chat-GPT , I am going to classify fruits using deep learning and VGG-16 architecture and review how Chat G... Text classification is a common NLP task that assigns a label or class to text. Some of the largest companies run text classification in production for a wide range of practical applications. One of the most popular forms of text classification is sentiment analysis, which assigns a label like 🙂 positive, 🙁 negative, or 😐 neutral to a ...In a press release, OpenAI said that the classifier identified 26 percent of AI-authored text as authentically human, and deemed 9 percent of text written by a human as AI-authored. In the first ...1. @NicoLi interesting. I think you can utilize gpt3 for this, yes. But you most likely would need to supervise the outcome. I think you could use it to generate descriptions and then adapt them by hand if necessary. would most likely drastically speed up the process. – Gewure. Nov 9, 2020 at 18:50.Jan 23, 2023 · Today I am going to do Image Classification using Chat-GPT , I am going to classify fruits using deep learning and VGG-16 architecture and review how Chat G... Introduction. Machine Learning is an iterative process that helps developers & Data Scientists write an algorithm to make predictions, which will allow businesses or individuals to make decisions accordingly. ChatGPT, as many of you already know, is the ChatBot that will help humans avoid doing google research and find answers to their questions.Feb 1, 2023 · AI classifier for indicating AI-written text Topics detector openai gpt gpt-2 gpt-detector gpt-3 openai-api llm prompt-engineering chatgpt chatgpt-detector The GPT2 Model transformer with a sequence classification head on top (linear layer). GPT2ForSequenceClassification uses the last token in order to do the classification, as other causal models (e.g. GPT-1) do. Since it does classification on the last token, it requires to know the position of the last token.You will fine-tune this new model head on your sequence classification task, transferring the knowledge of the pretrained model to it. Training hyperparameters Next, create a TrainingArguments class which contains all the hyperparameters you can tune as well as flags for activating different training options.Oct 18, 2022 · SetFit is outperforming GPT-3 in 7 out of 11 tasks, while being 1600x smaller. In this blog, you will learn how to use SetFit to create a text-classification model with only a 8 labeled samples per class, or 32 samples in total. You will also learn how to improve your model by using hyperparamter tuning. You will learn how to: OpenAI released the AI classifier to identify AI-written text. The AI Text Classifier is a fine-tuned GPT model that predicts how likely it is that AI generated a piece of text. The model can be used to detect ChatGPT and AI Plagiarism, but it’s not reliable enough yet because actually knowing if it’s human vs. machine-generated is really hard. Like the AI Text Classifier or the GPT-2 Output Detector, GPTZero is designed to differentiate human and AI text. However, while the former two tools give you a simple prediction, this one is more ...Product Transforming work and creativity with AI Our API platform offers our latest models and guides for safety best practices. Models GPT GPT-4 is OpenAI’s most advanced system, producing safer and more useful responses. Learn about GPT-4 Advanced reasoning Creativity Visual input Longer contextJan 31, 2023 · The new GPT-Classifier attempts to figure out if a given piece of text was human-written or the work of an AI-generator. While ChatGPT and other GPT models are trained extensively on all manner of text input, the GPT-Classifier tool is "fine-tuned on a dataset of pairs of human-written text and AI-written text on the same topic." So instead of ... In this tutorial, we learned how to use GPT-4 for NLP tasks such as text classification, sentiment analysis, language translation, text generation, and question answering. We also used Python and ...In GPT-3’s API, a ‘ prompt ‘ is a parameter that is provided to the API so that it is able to identify the context of the problem to be solved. Depending on how the prompt is written, the returned text will attempt to match the pattern accordingly. The below graph shows the accuracy of GPT-3 with prompt and without prompt in the models ...Text classification is a common NLP task that assigns a label or class to text. Some of the largest companies run text classification in production for a wide range of practical applications. One of the most popular forms of text classification is sentiment analysis, which assigns a label like 🙂 positive, 🙁 negative, or 😐 neutral to a ...Jan 19, 2021 · GPT-3 is a neural network trained by the OpenAI organization with more parameters than earlier generation models. The main difference between GPT-3 and GPT-2, is its size which is 175 billion parameters. It’s the largest language model that was trained on a large dataset. The model responds better to different types of input, such as … Continue reading Intent Classification & Paraphrasing ... Dec 14, 2021 · The GPT-n series show very promising results for few-shot NLP classification tasks and keep improving as their model size increases (GPT3–175B). However, those models require massive computational resources and they are sensitive to the choice of prompts for training. ChatGPT. ChatGPT, which stands for Chat Generative Pre-trained Transformer, is a large language model -based chatbot developed by OpenAI and launched on November 30, 2022, which enables users to refine and steer a conversation towards a desired length, format, style, level of detail, and language used. Successive prompts and replies, known as ... In our evaluations on a “challenge set” of English texts, our classifier correctly identifies 26% of AI-written text (true positives) as “likely AI-written,” while incorrectly labeling human-written text as AI-written 9% of the time (false positives). Our classifier’s reliability typically improves as the length of the input text increases.Like the AI Text Classifier or the GPT-2 Output Detector, GPTZero is designed to differentiate human and AI text. However, while the former two tools give you a simple prediction, this one is more ...Dec 14, 2021 · The GPT-n series show very promising results for few-shot NLP classification tasks and keep improving as their model size increases (GPT3–175B). However, those models require massive computational resources and they are sensitive to the choice of prompts for training. The model is task-agnostic. For example, it can be called to perform texts generation or classification of texts, amongst various other applications. As demonstrated later on, for GPT-3 to differentiate between these applications, one only needs to provide brief context, at times just the ‘verbs’ for the tasks (e.g. Translate, Create).In GPT-3’s API, a ‘ prompt ‘ is a parameter that is provided to the API so that it is able to identify the context of the problem to be solved. Depending on how the prompt is written, the returned text will attempt to match the pattern accordingly. The below graph shows the accuracy of GPT-3 with prompt and without prompt in the models ...Nov 30, 2022 · OpenAI. Product, Announcements. ChatGPT is a sibling model to InstructGPT, which is trained to follow an instruction in a prompt and provide a detailed response. We are excited to introduce ChatGPT to get users’ feedback and learn about its strengths and weaknesses. During the research preview, usage of ChatGPT is free. GPT-2 Output Detector is an online demo of a machine learning model designed to detect the authenticity of text inputs. It is based on the RoBERTa model developed by HuggingFace and OpenAI and is implemented using the 🤗/Transformers library. The demo allows users to enter text into a text box and receive a prediction of the text's authenticity, with probabilities displayed below. The model ...Apr 9, 2021 · Text classification is a very common problem that needs solving when dealing with text data. We’ve all seen and know how to use Encoder Transformer models li... In a press release, OpenAI said that the classifier identified 26 percent of AI-authored text as authentically human, and deemed 9 percent of text written by a human as AI-authored. In the first ...Like the AI Text Classifier or the GPT-2 Output Detector, GPTZero is designed to differentiate human and AI text. However, while the former two tools give you a simple prediction, this one is more ...The GPT2 Model transformer with a sequence classification head on top (linear layer). GPT2ForSequenceClassification uses the last token in order to do the classification, as other causal models (e.g. GPT-1) do. Since it does classification on the last token, it requires to know the position of the last token. The AI Text Classifier is a free tool that predicts how likely it is that a piece of text was generated by AI. The classifier is a fine-tuned GPT model that requires a minimum of 1,000 characters, and is trained on English content written by adults. It is intended to spark discussions on AI literacy, and is not always accurate.An approach to optimize Few-Shot Learning in production is to learn a common representation for a task and then train task-specific classifiers on top of this representation. OpenAI showed in the GPT-3 Paper that the few-shot prompting ability improves with the number of language model parameters.Sep 8, 2019 · I'm trying to train a model for a sentence classification task. The input is a sentence (a vector of integers) and the output is a label (0 or 1). I've seen some articles here and there about using Bert and GPT2 for text classification tasks. However, I'm not sure which one should I pick to start with. 1. @NicoLi interesting. I think you can utilize gpt3 for this, yes. But you most likely would need to supervise the outcome. I think you could use it to generate descriptions and then adapt them by hand if necessary. would most likely drastically speed up the process. – Gewure. Nov 9, 2020 at 18:50.Jan 31, 2023 · The new GPT-Classifier attempts to figure out if a given piece of text was human-written or the work of an AI-generator. While ChatGPT and other GPT models are trained extensively on all manner of text input, the GPT-Classifier tool is "fine-tuned on a dataset of pairs of human-written text and AI-written text on the same topic." So instead of ... AI-Guardian is designed to detect when images have likely been manipulated to trick a classifier, and GPT-4 was tasked with evading that detection. "Our attacks reduce the robustness of AI-Guardian from a claimed 98 percent to just 8 percent, under the threat model studied by the original [AI-Guardian] paper," wrote Carlini.Jan 6, 2023 · In this example the GPT-3 ada model is fine-tuned/trained as a classifier to distinguish between the two sports: Baseball and Hockey. The ada model forms part of the original, base GPT-3-series. You can see these two sports as two basic intents, one intent being “baseball” and the other “hockey”. Total examples: 1197, Baseball examples ... Getting Started - NLP - Classification Using GPT-2 | Kaggle. Andres_G · 2y ago · 1,847 views.Step 2: Deploy the backend as a Google Cloud Function. If you don’t have one already, create a Google Cloud account, then navigate to Cloud Functions. Click Create Function. Paste in your ...Feb 6, 2023 · Like the AI Text Classifier or the GPT-2 Output Detector, GPTZero is designed to differentiate human and AI text. However, while the former two tools give you a simple prediction, this one is more ... Text classification is a common NLP task that assigns a label or class to text. Some of the largest companies run text classification in production for a wide range of practical applications. One of the most popular forms of text classification is sentiment analysis, which assigns a label like 🙂 positive, 🙁 negative, or 😐 neutral to a ...Apr 16, 2022 · Using GPT models for downstream NLP tasks. It is evident that these GPT models are powerful and can generate text that is often indistinguishable from human-generated text. But how can we get a GPT model to perform tasks such as classification, sentiment analysis, topic modeling, text cleaning, and information extraction?
We find the implementation of the few-shot classification methods in OpenAI where GPT-3 is a well-known few-shot classifier. We can also utilise the Flair for zero-shot classification, under the package of Flair we can also utilise various transformers for the NLP procedures like named entity recognition, text tagging, text embedding, etc .... Cleveland browns stained glass floor lamp.htm
Amrit Burman. Image: AP. OpenAI, the company that created ChatGPT and DALL-E, has now released a free tool that can be used to "distinguish between text written by a human and text written by AIs." In a press release by OpenAI, the company mentioned that the tool named classifier is "not fully reliable" and "should not be used as a primary ...Size of word embeddings was increased to 12888 for GPT-3 from 1600 for GPT-2. Context window size was increased from 1024 for GPT-2 to 2048 tokens for GPT-3. Adam optimiser was used with β_1=0.9 ...The new GPT-Classifier attempts to figure out if a given piece of text was human-written or the work of an AI-generator. While ChatGPT and other GPT models are trained extensively on all manner of text input, the GPT-Classifier tool is "fine-tuned on a dataset of pairs of human-written text and AI-written text on the same topic." So instead of ...Explains a single param and returns its name, doc, and optional default value and user-supplied value in a string. explainParams() → str ¶. Returns the documentation of all params with their optionally default values and user-supplied values. extractParamMap(extra: Optional[ParamMap] = None) → ParamMap ¶. Feb 25, 2023 · OpenAI has created an AI Text Classifier to counter its own GPT model.Though far from being completely accurate, this Classifier can still identify AI text. Unlike other tools, OpenAI’s Classifier doesn’t provide a score or highlight AI-generated sentences. The gpt-4 model supports 8192 max input tokens and the gpt-4-32k model supports up to 32,768 tokens. GPT-3.5. GPT-3.5 models can understand and generate natural language or code. The most capable and cost effective model in the GPT-3.5 family is GPT-3.5 Turbo, which has been optimized for chat and works well for traditional completions tasks as ...Step 2: Deploy the backend as a Google Cloud Function. If you don’t have one already, create a Google Cloud account, then navigate to Cloud Functions. Click Create Function. Paste in your ...The OpenAI API is powered by a diverse set of models with different capabilities and price points. You can also make customizations to our models for your specific use case with fine-tuning. Models. Description. GPT-4. A set of models that improve on GPT-3.5 and can understand as well as generate natural language or code. GPT-3.5.The GPT2 Model transformer with a sequence classification head on top (linear layer). GPT2ForSequenceClassification uses the last token in order to do the classification, as other causal models (e.g. GPT-1) do. Since it does classification on the last token, it requires to know the position of the last token.NLP Cloud's Intent Classification API. NLP Cloud proposes an intent classification API with generative models that gives you the opportunity to perform detection out of the box, with breathtaking results. If the base generative model is not enough, you can also fine-tune/train GPT-J or Dolphin on NLP Cloud and automatically deploy the new model ... GPT-2 is a transformers model pretrained on a very large corpus of English data in a self-supervised fashion. This means it was pretrained on the raw texts only, with no humans labelling them in any way (which is why it can use lots of publicly available data) with an automatic process to generate inputs and labels from those texts.Jan 31, 2023 · OpenAI, the company behind DALL-E and ChatGPT, has released a free tool that it says is meant to “distinguish between text written by a human and text written by AIs.”. It warns the classifier ... Feb 1, 2023 · classification system vs sentiment classification In conclusion, OpenAI has released a groundbreaking tool to detect AI-generated text, using a fine-tuned GPT model that predicts the likelihood of ... The classifier works best on English text and works poorly on other languages. Predictable text such as numbers in a sequence is impossible to classify. AI language models can be altered to become undetectable by AI classifiers, which raises concerns about the long-term effectiveness of OpenAI’s tool.OpenAI has taken down its AI classifier months after it was released due to its inability to accurately determine whether a chunk of text was automatically generated by a large language model or written by a human. "As of July 20, 2023, the AI classifier is no longer available due to its low rate of accuracy," the biz said in a short statement ...Path of transformer model - will load your own model from local disk. In this tutorial I will use gpt2 model. labels_ids - Dictionary of labels and their id - this will be used to convert string labels to numbers. n_labels - How many labels are we using in this dataset. This is used to decide size of classification head.The model is task-agnostic. For example, it can be called to perform texts generation or classification of texts, amongst various other applications. As demonstrated later on, for GPT-3 to differentiate between these applications, one only needs to provide brief context, at times just the ‘verbs’ for the tasks (e.g. Translate, Create).Explore resources, tutorials, API docs, and dynamic examples to get the most out of OpenAI's developer platform.When GPT-2 is fine-tuned for text classification (positive vs. negative), the head of the model is a linear layer that takes the LAST output embedding and outputs 2 class logits. I still can't grasp why this works..