Gemini 3.1 Pro
7 mentions across all digests
Gemini 3.1 Pro is Google's frontier AI model released in February 2026, claiming 2x+ reasoning performance over Gemini 3 Pro, and was among the models to replicate GPT-5.4 Pro's solution of a FrontierMath open problem.
Last Week in AI #336 - Sonnet 4.6, Gemini 3.1 Pro, Anthropic vs Pentagon
Claude's Sonnet 4.6 debuts as the free/pro default with 1M context and SWE-Bench wins, but Gemini 3.1 Pro edges ahead on frontier evals (77% ARC-AGI vs Opus's 69%), while Anthropic faces Pentagon pressure over refusing fully autonomous lethal weapons deployment.
Epoch confirms GPT5.4 Pro solved a frontier math open problem
GPT-5.4 Pro solved FrontierMath's open Ramsey hypergraph problem—the first AI to crack a frontier research problem—with Opus 4.6 and Gemini 3.1 Pro quickly replicating the breakthrough.
The latest AI news we announced in February
LWiAI Podcast #235 - Sonnet 4.6, Deep-thinking tokens, Anthropic vs Pentagon
Sonnet 4.6's 1M context and deep-thinking reasoning tokens reflect accelerating capabilities across Claude, Gemini, and Grok, but Anthropic's Pentagon contract tensions signal growing regulatory friction in the AI arms race.
The Sashiko patch-review system
Sashiko's Gemini 3.1-powered patch reviewer caught 53% of recent Linux kernel bugs that human reviewers completely missed—demonstrating AI code review finding blind spots beyond collaborative human expertise.