Re:RL on GPT-5 to write better kernels
by atallahw on Thursday February 12, 2026 @12:22PM
(#46991735)
We got access to OpenAI's RFT API with GPT5 and tried to see how good we could get it at one-shot Triton kernel generation. Some key decisions/observations:
1. tool use instead of multi-turn rl
2. skip SFT altogether
3. dataset curation was more important than dataset scale
4. reward hacks detection must be robust
5. models are getting a lot better at this
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