Text and Code Embeddings:

Bootcamp AI
4 min readJan 26, 2024

Unleashing the Power of Contrastive Models

Introduction: Text and code embeddings play a crucial role in various natural language processing tasks by condensing input into a single vector representation. In this article, we will explore the concept of embeddings and delve deeper into contrastive models — a class of models specifically optimized for learning single embeddings of input. We will discuss their relevance in the context of text and code and present a simple recipe to obtain high-quality embeddings using contrastive models.

Text and Code Embeddings: Text and code embeddings are essential tools for data analysis and machine learning applications. They allow for efficient data visualization, regression, classification, and search tasks, among others. While generative models are widely used for text generation, they are not explicitly optimized to produce single embeddings of input. Contrastive models, on the other hand, are designed to learn such embeddings through unsupervised training on large-scale internet data.

Embedding Models in Practice: To obtain text and code embeddings, we follow a simple three-step recipe:

  1. Pre-train the model using a large dataset.
  2. Collect paired data that represents the relationship between inputs.
  3. Train the model using a large batch size, which improves feature learning efficiency.

Text Embeddings: For text embeddings, we initialize the model with GPT (Generative Pre-trained Transformer) — a powerful text generation model. We collect unsupervised paired data from neighboring text pairs found on the internet and train the model using a large batch size. The resulting embeddings can be used for data visualization, regression, classification, zero-shot classification, cold start recommendation, and text search tasks.

Code Embeddings: To obtain code embeddings, we initialize the model with Codex — OpenAI’s code generation model. We collect paired data consisting of comments and corresponding code snippets. Similar to text embeddings, we train the model using a large batch size. These code embeddings are useful for tasks like code search, where given a natural language query and a collection of code blocks, the most relevant code can be identified.

Use Cases for Embeddings:

  1. Data Visualization: Embeddings can be used to Visualize complex datasets in a Simplified manner.
  2. Regression and Classification Tasks: Embeddings can serve as effective features for regression and classification models.
  3. Zero-shot Classification: With embeddings, classification tasks can be performed without the need for annotated data, resulting in improved performance.
  4. Cold Start Recommendation: Embeddings facilitate matching textual descriptions with user information, enabling effective cold start recommendations.
  5. Text Search: Embeddings enable quick and accurate retrieval of Relevant documents or code snippets from a large collection Based on a given query.
  6. Code Search: Embeddings aid in finding the most relevant code blocks for a given natural language query across different programming languages.

Performance of Embedding Models: Our embedding models, particularly the DaVinci model, outperform previous methods on various academic tasks. From sentiment analysis to text classification, text search, and code search, our models exhibit superior performance. The robustness of these models is evident, as they consistently perform well on a wide range of tasks, surpassing specialized models for specific domains.

Real-world Applications of Embedding Models: Several customer success stories highlight the practical usability of our embedding models:

  1. Fabius: An enterprise search company switched to using our embeddings for keyword search, leading to improved results and enhanced data retrieval capabilities.
  2. viable: By utilizing our embeddings for data clustering, this company improved clustering accuracy, which had a cascading effect on other downstream tasks.
  3. FineTuned Learning: A tech company successfully implemented our embeddings for zero-shot classification, enabling automatic categorization of educational material with ever-changing categories.

Conclusion: Text and code embeddings obtained through contrastive models have revolutionized the way we approach natural language processing tasks. These models, optimized for learning single embeddings, exhibit superior performance across a range of applications. Their real-world applicability, robustness, and ease of use make them invaluable tools for data analysis and machine learning. With the OpenAI API, accessing and implementing these powerful embeddings has never been easier. Experience the transformative impact of text and code embeddings today!


  • Text and code embeddings condense input into a single vector representation, facilitating various natural language processing tasks.
  • Contrastive models are explicitly optimized to learn single embeddings of input.
  • Contrastive models outperform generative models for single-vector embedding tasks.
  • Pre-training with large datasets and training with large batch sizes yield high-quality embeddings.
  • Text embeddings are obtained using GPT, while code embeddings utilize Codex.
  • Embeddings are useful for data visualization, regression, classification, zero-shot classification, cold start recommendation, and text and code search tasks.
  • Our embedding models consistently outperform previous methods on sentiment analysis, text classification, and code and text search tasks.
  • Real-world applications of embeddings include improved enterprise search, enhanced data clustering, and automated categorization of educational material.
  • OpenAI API provides easy access to powerful embedding models.