PrimeIntellect-ai/prime-rl

Health v2 · maintenance only

Adoption not part of the score

1975 stars · 416 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

prime-rl is a Python framework for large-scale, fully asynchronous reinforcement learning training of language models, built on FSDP2 for training and vLLM for inference. It supports scaling to 1000+ GPUs, integrates with the Prime Intellect Environments Hub for agentic RL environments, and covers end-to-end post-training including SFT, RL, and evals.

Use cases

• train LLMs with reinforcement learning at scale
• run agentic RL post-training on large MoE models
• fine-tune language models with SFT and RL pipelines
• deploy multi-node RL training jobs on Slurm or Kubernetes
• evaluate and post-train models on agentic environments like SWE
• train vision-language models with RL

When to choose

• you need to scale RL training to hundreds or thousands of GPUs
• you want asynchronous, high-throughput agentic RL training
• you need integrated SFT, RL, and evaluation in one framework
• you want native integration with verifiers environments and the Environments Hub
• you need optimized support for large MoE models with expert and context parallelism

When to avoid

• you only need simple single-GPU fine-tuning with minimal setup
• you need a lightweight RL library for small models or quick experiments
• you are not working with language models or agentic RL tasks
• you lack access to multi-GPU or multi-node infrastructure

Facets

framework · maturity active

llm-training reinforcement-learning machine-learning gpu-computing benchmarking reinforcement-learning large-language-models machine-learning gpu-computing artificial-intelligence python cloud reinforcement-learning rlhf post-training sft vllm fsdp2 slurm agentic-training moe distributed-training verifiers environments-hub multimodal fp8 evals gpu linux docker kubernetes

Member repositories

For agents

markdown · JSON · MCP: product_card(name="PrimeIntellect-ai/prime-rl")