Explorable Explanation on How the Web works made with Opus 5.5 medium effort.
Opus worked for 4+ hours and made this experience in a single shot. Only a bunch of interconnected HTML files. Inspired by ncasenmare Explore it yourself here -
A cheaper and faster model
This model performs on par with Claude Fable 5.1 in most tasks, but is about 30% faster and 40% cheaper than Opus 5. Also, the 5-hour session limit for Claude Code users has increased by 20%, and Pro, Max, and Team users have the option to reset the weekly limit once.
Xiaomi's MiMo-V2.6-Pro lands within 1-4 points of Claude Opus 5 and GPT-5.6 Sol on agent benchmarks, MIT licensed.
Its training ran on a public dashboard. #MiMoV26 #AITransparency Full edition and full episode:
Claude Opus 5.5 is the Claude 5.5 opener.
Fable 5.1-level on most tasks. ~40% cheaper than Opus 5. Leads Astra on the agentic coding benches Anthropic published. Breakthrough, not a bump.
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