not much happened today

**Gemini 3.1 Pro** demonstrates strong retrieval capabilities and cost efficiency compared to **GPT-5.2** and **Opus 4.6**, though users report tooling and UI issues. The **SWE-bench Verified** evaluation methodology is under scrutiny for consistency, with updates bringing results closer to developer claims. Benchmarking debates arise over what frontier models truly measure, especially with ARC-AGI puzzles. **Claude Opus 4.6** shows a noisy but notable **14.5-hour time horizon** on software tasks, with token limits causing practical failures. **Sonnet 4.6** improves significantly in code and instruction-following benchmarks, but user backlash grows due to product regressions.