Free Alternative to OpenAI API

DeepSeek Harness: Everything is a Plugin.

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

LLM inference in C/C++

A high-throughput and memory-efficient inference and serving engine for LLMs

Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 60-95% fewer tokens, same answers. Library, proxy, MCP server.

A unified AI model hub for aggregation & distribution. It supports cross-converting various LLMs into OpenAI-compatible, Claude-compatible, or Gemini-compatible formats. A centralized gateway for personal and enterprise model management.

A self-hosted AI inference engine for running large language models locally

Sub2API 一站式开源中转服务，让 Claude、Openai 、Gemini、Grok订阅统一接入，支持拼车共享，更高效分摊成本，原生工具无缝使用。

Official inference framework for 1-bit LLMs

A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visualization.

Official, Anthropic-managed directory of high quality Claude Code Plugins.

SGLang is a high-performance serving framework for large language models and multimodal models.

DeepSeek 4 Flash local inference engine for Metal and CUDA

LLM inference server with continuous batching & SSD caching for Apple Silicon — managed from the macOS menu bar

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code

Go ahead and axolotl questions

Generates original ARC-AGI-1-style tasks distribution-matched to the public eval set.

The fullstack MCP framework to develop MCP Apps for ChatGPT / Claude & MCP Servers for AI Agents.

An Application Framework for AI Engineering

OpenSquilla — Token-Efficient AI Agent with same budget, higher intelligence density

DeepInfer: High-performance, large-scale inference framework for DeepSeek models

The programming language for agents

The Ruby-native AI framework. Chats, agents, tools, images, audio, and video through one consistent API, in plain Ruby or Rails.

Language model tokenization at GB/s