GPT-5.6 Proves Convex Optimization Theorem in Lean
Charuru · reddit · 2026-07-18
Following OpenAI's CDC proof announcement, a Reddit post reveals that GPT-5.6 successfully tackled a convex optimization problem using similar prompts. It filled a 30-year-old gap, with the results successfully verified in Lean.
The core message is that the model goes beyond generating plausible mathematical derivations; it can pass verification in formal proof systems, marking another significant step forward in mathematical reasoning and theorem proving.
Related event: GPT-5.6 Solves Decades-Old Math Problems, Boosting Proof Capabilities(10 posts)→
More from Models
- Same Echo Maze prompt, three frontier models: all passed visually but shipped the same hidden bug — eyishazyer · 2026-09-11
- Benchmark scores drop from 89% to 19% on new evals — how benchmaxxing breaks leaderboard trust — airesearch12 · 2026-09-11
- ChatGPT tells user their question is too hard and to 'accept dumber answers' — phido3000 · 2026-09-11
- Claude is no longer available for minors as Anthropic rolls out age assurance — Muhammad523 · 2026-09-11
- Developer Building a Unified Leaderboard of All Model Benchmark Scores — airesearch12 · 2026-09-11
- Rumor claims Kimi faked performance by serving Claude; DeepSeek new model surprises in evals — realsohamparekh · 2026-09-11