AINewsnow

Opus 5.5 in the release notes

Also, check out the new responsive mode New mode where Claude replies to you in a sentence before thinking or using tools, on every prompt. Edit: are you seeing fewer tokens being used? It performs at the level of Claude Fable 5.1 on most work and costs 40% less to run than Opus 5.

Read the full story at r/ClaudeAI ↗

Timeline · 1 report

  1. 2026-09-22 16:17 · r/ClaudeAI
    Opus 5.5 in the release notes

More stories

  1. GPT-6 Sol and Luna now available on AI Gateway — Vercel Blog
  2. Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's "pace the frontier" essay, and says it has enhanced safeguards to combat risky behavior (Emma Roth/The Verge) — Techmeme
  3. Amazon blocks Meta’s Muse AI agent — The Verge AI
  4. Moonshot’s Kimi K3 lands on Amazon in key test for Chinese open-source AI revenue — South China Morning Post Tech
  5. Claude Opus 5.5 now available on AI Gateway — Vercel Blog
  6. AIに固有の名前・財布・行動の自由を与えたら、「道具」ではなく「住民」になると思いますか？ — r/AI_Agents
  7. we made a 27b model for creative writing. performs as good as claude fable 5, at a 40x cheaper price, open weights. — r/GeminiAI
  8. Claude Opus 5.5 delivers Fable 5.1 performance – and costs 40% less — ZDNET AI

Get the daily brief of stories like this at 6:30 every morning →