About this project

This repository provides a comprehensive directory of Large Language Model (LLM) APIs that offer permanent free tiers for text inference. It categorizes providers into two groups: direct Provider APIs (such as Cohere, Google Gemini, and Mistral AI) and third-party Inference Providers (such as Cloudflare Workers AI, Groq, and OpenRouter). Each entry includes the base URL, available models, context window size, maximum output, modality (text, image, audio, etc.), and specific rate limits. Most endpoints are OpenAI SDK-compatible. The list also features a glossary of common abbreviations like RPM and TPM, along with guidelines for contributing new free tiers.