When they tested on bugs not in SWE-Bench, the success rate dropped to 57‑71% on random items, and 50‑68% on fresh issues created after the benchmark snapshot. I’m surprised they did that well.
After the benchmark snapshot. Could still be before LLM training data cut off, or available via RAG.
edit: For a fair test you have to use git issues that had not been resolved yet by a human.
This is how these fuckers talk, all of the time. Also see Sam Altman's not-quite-denials of training on Scarlett Johansson's voice: they just asserted that they had hired a voice actor, but didn't deny training on actual Scarlett Johansson's voice.