zou-group/textgrad

Provides a PyTorch-like autograd API for optimizing text through LLM-generated feedback, using textual gradients instead of numerical ones. Supports multiple LLM backends via LiteLLM integration (GPT-4o, Bedrock, Gemini, Together) with optional caching, enabling optimization of diverse variables including prompts, code, reasoning chains, and molecular structures. Built around three core components—Variables, TextLoss functions, and TGD optimizer—that mirror PyTorch's computational graph paradigm for natural language optimization tasks.

3,416 stars and 22,439 monthly downloads. Used by 1 other package. No commits in the last 6 months. Available on PyPI.