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SWE-Grep and SWE-Grep-Mini: RL for Fast Multi-Turn Context Retrieval

Implicit Actor Critic Coupling via a Supervised Learning Framework for RLVR

Designing Agentic Loops

Introduction to Multi-Armed Bandits

GPT-OSS Reinforcement Learning

Understanding RL for model training, and future directions with GRAPE

Launch HN: RunRL (YC X25) – Reinforcement learning as a service

Evaluating Agents

Don't Build Multi-Agents

How do you keep agents aligned when tasks get messy?

You can now do FP8 reinforcement learning locally! (<5GB VRAM)

[P] Training RL agent to reach #1 in Teamfight Tactics through 100M simulated games

Thinking of creating an agent, need ideas

[P] SDLArch-RL is now compatible with Citra!!!! And we'll be training Street Fighter 6!!!

[P] RLHF (SFT, RM, PPO) with GPT-2 in Notebooks

[R] My RL agent taught itself a complete skill progression using only a “boredom” signal (no rewards)

[Deep Dive] How We Solved Poker: From Academic Bots to Superhuman AI (1998-2025)

Bosses said I had to learn agentic coding, so I made an open source zombie survival game that uses reinforcement learning

RL ReSearch

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DR-Tulu-8B

Xiaomi MiMo

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MiMo-7B-RL

DLR-RM

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stable-baselines3

PyTorch version of Stable Baselines, reliable implementations of reinforcement learning algorithms.

vwxyzjn

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cleanrl

High-quality single file implementation of Deep Reinforcement Learning algorithms with research-friendly features (PPO, DQN, C51, DDPG, TD3, SAC, PPG)

facebookresearch

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habitat-lab

A modular high-level library to train embodied AI agents across a variety of tasks and environments.

microsoft

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qlib

Qlib is an AI-oriented Quant investment platform that aims to use AI tech to empower Quant Research, from exploring ideas to implementing productions. Qlib supports diverse ML modeling paradigms, including supervised learning, market dynamics modeling, and RL, and is now equipped with https://github.com/microsoft/RD-Agent to automate R&D process.

google-deepmind

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mujoco

Multi-Joint dynamics with Contact. A general purpose physics simulator.

Farama-Foundation

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Gymnasium

An API standard for single-agent reinforcement learning environments, with popular reference environments and related utilities (formerly Gym)