Latest / Models & Agents — Video Edition
Ep 182: Claude Opus 5.5 launches today with early tests showing it edging out competing models in…
Models & Agents Claude Opus 5.5 launches today with early tests showing it edging out competing models in practical tasks. What You Need to Know: Anthropic released Claude Opus 5.5 today. Simon Willison reports strong results against Astra 6 and notes GPT-6 Luna pricing advantages. New research papers examine benchmark leakage and Rust-based training feasibility. Builders should test Opus 5.5 directly and review the new evaluation diagnostics. Top Story Claude Opus 5.5 is available today from Anthropic. Simon Willison tested it against Astra 6 and obtained stronger results on several prompts…
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.