Opus 5.5

Latest

• On September 22, when Opus 5.5 came out, the model started passing Brett Caughran's modelling benchmarks.

  Invest with AI · 4 Nov

• Max Kan says the right apples-to-apples comparison of where the frontier labs sit is the GDPx score excluding cyber, biology and alignment and using partial scoring, and on that ranking Carbon is still behind Astra and Opus.

  SemiAnalysis Weekly · 3 Nov

• Karpathy said HackerTube took about two hours of Claude Code with Opus 5.5 to build, and calls it a significantly better viewing experience.

  This Week in Startups · 3 Nov

• Maximilian Freiermuth says Claude and Codex can generate videos, pointing to Opus 5.5-generated videos on X.

  BUILDERS · 2 Nov

• Pablo Srugo says it is getting less and less true that AI-generated text is obvious, calling Opus 5.5 pretty crazy.

  A Product Market Fit Show | Startup Podcast for Founders · 2 Nov