An Easy-to-use, Scalable and High-performance Agentic RL Framework based on Ray (PPO & DAPO & REINFORCE++ & TIS & vLLM & Ray & Async RL)

slime is an LLM post-training framework for RL Scaling.

Kilo is the all-in-one agentic engineering platform. Build, ship, and iterate faster with the most popular open source coding agent. #1 coding agent on OpenRouter. 1.5M+ Kilo Coders. 25T+ tokens pr…

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Universal memory layer for AI Agents

Build, run, manage agentic software at scale.

Spec-driven development for large codebases

Kimi-Audio, an open-source audio foundation model excelling in audio understanding, generation, and conversation

ARM embedded toolchains for Bazel

tiktoken is a fast BPE tokeniser for use with OpenAI's models.

The simplest, fastest repository for training/finetuning medium-sized GPTs.

Hackable and optimized Transformers building blocks, supporting a composable construction.

🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23