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Video breakdown

Anthropic went CRAZY (Opus 5.5)

MAMatthew Berman23 Sept 20265 tools mentionedWatch on YouTube

Matthew Berman showed 5 AI tools in this video on . None are verified available in the EU yet. Each row below jumps to the exact second. Part of week 2026-39.

Tools shown in this video, with timestamps

Timeline · 5 moments
0:0031:59
  1. First model in Anthropic's Claude 5.5 family. It leads Terminal Bench (66.4%), GDPval ELO (1846) and the Artificial Analysis Intelligence Index. Priced at $4/$20 per million tokens, it is cheaper and over 30% faster than Opus 5, with about 40% lower cost per task. The creator also covers its safety results and gates for biology and cyber use.

  2. GAGPT-6 AstraOpenAIUnverified

    Competing frontier model that Opus 5.5 is benchmarked against. It comes second on Terminal Bench and beats Opus 5.5 on Terminal Bench Science. The creator also calls it the best at creative writing.

  3. F5Fable 5.1Unverified

    Previous frontier Anthropic model, used as a comparison in benchmarks. The Anthropic guest says it suits planning, code review and high-stakes security tasks.

  4. Released alongside Opus 5.5. It lets users check whether their skills and plugins are up to date with the newest model and update them so they don't constrain it.

  5. Mentioned by the Anthropic guest as a product where Opus 5.5's improved tool calling is useful. It lets users build their own harnesses and spin them out.

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