Maria Trofimova

🚀 SWE-rebench V2.1 RL is out: 13,337 free RL environments for coding agents (20 languages, Harbor format)! 🔧 Fixed tasks, envs, and graders → fast, reliable rollouts. Doing RL post-training or research? DM or reply. We can share data and RL envs early for free, so we can make them better for open source! 🙏 Please RT or share with anyone who might need free RL envs!

📟 Meet SWE-rebench-V2: the largest open, multilingual, executable dataset for training code agents! We at Nebius AI R&D are releasing the biggest open dataset of RL environments for training coding agents. We built an automated pipeline to extract real-world tasks at scale, and now we are sharing everything with the community. This release is designed for large-scale RL training. What’s inside: > 32,000+ executable tasks — every task is based on a real-world issue and comes with a pre-built Docker env. > 20 programming languages — moving beyond Python-only datasets (including less-represented ones like Lua, Clojure, etc.). > 120,000+ extra tasks derived from real pull requests. > High quality — tasks are filtered and labeled using an LLM ensemble. They are also enriched with metadata and tested interfaces to ensure solvability. We are also dropping a technical report with all the details on our extraction pipeline and model evaluations. 📄 Paper and dataset: huggingface.co/papers/2602.2… 👾 Discord (we are online there for any feedback/issues): discord.gg/wXYmWpMu We are open to research collaborations — feel free to reach out! 🔁 If you find this useful, please help us spread the word by sharing

🎄 We release 67,074 Qwen3-Coder OpenHands trajectories on SWE-rebench + 2 RFT checkpoints! RFT with this data on SWE-bench Verified: Qwen3-30B-Instr: 26% → 50% P@1 Qwen3-235B-Instr: 46% → 62% P@1 agent: @OpenHandsDev model: @Alibaba_Qwen 📷👇