view article Article Welcome RL Environments to the hub +6 burtenshaw, AdithyaSK, sergiopaniego, xeophon, ryanmarten, merve, lhoestq, julien-c • Sep 28 • 44
view article Article One sandbox per rollout, or how labs run RL for agents in 2026 sergiopaniego • Sep 11 • 12
view article Article Async GRPO with LoRA across HF Jobs: a bucket, a proxy, and no NCCL +2 aminediroHF, qgallouedec, kashif, sergiopaniego • Sep 10 • 53
view article Article Fine-tuning a 350M Model for Better Structured Outputs in 100 GRPO Steps +1 iamleonie, burtenshaw, sergiopaniego • Sep 3 • 157
view article Article Training a coding model to paint watercolours with TRL and OpenEnv sergiopaniego • Sep 3 • 82
view article Article Training a coding agent using the OpenCode harness in remote HF sandboxes with TRL and OpenEnv sergiopaniego • Aug 5 • 31
view article Article Can you train a model on Simon Willison's deeply unscientific pelican benchmark? sergiopaniego • Jul 30 • 2
view article Article Profiling in PyTorch (Part 3): Attention is all you profile +2 ariG23498, sergiopaniego, sayakpaul, ror • Jul 10 • 54
view article Article Distillation in 2026 (so far): which frontier models use it and how sergiopaniego • Jul 8 • 23
view article Article I fine-tuned a model for free from one prompt, with TRL and the Google Colab CLI sergiopaniego • Jun 15 • 8
view article Article Profiling in PyTorch (Part 2): From nn.Linear to a Fused MLP +3 ariG23498, ror, sergiopaniego, pcuenq, sayakpaul • Jun 11 • 65
view article Article The Open Source Community is backing OpenEnv for Agentic RL +18 burtenshaw, spisakjo, lysandre, darktex, willcb, qjoy, pawalt, cwing-nv, danielhanchen, andrewzhou, thegovind, shimmyshimmer, Hamid-Nazeri, Sanyam, zkwentz, emre0, lewtun, sergiopaniego, banghua, unseenmars • Jun 8 • 123
view article Article Profiling in PyTorch (Part 1): A Beginner's Guide to torch.profiler +3 ariG23498, sayakpaul, sergiopaniego, ror, pcuenq • May 29 • 186
view article Article Shipping a Trillion Parameters With a Hub Bucket: Delta Weight Sync in TRL +6 aminediroHF, qgallouedec, kashif, lewtun, edbeeching, albertvillanova, lvwerra, sergiopaniego • May 27 • 50