Claude Opus 5.5 debuts #1 on Text Arena as Anthropic sweeps top six
arena · x · 2026-09-27
Claude Opus 5.5 (High) debuts at #1 on Text Arena with 1509 points, an 18-point jump over Opus 5 (High), which falls to #11. Opus 4.6 (High) sits #2 just 4 points back, giving Anthropic all six top spots. The model also lands on the Pareto frontier at a blended $16/MToken, with Meta's muse-spark and Google's gemini-3.8-flash-high close behind.
Related event: Claude Opus 5.5 tops Text Arena as Anthropic sweeps top six(4 posts)→
More from Models
- Leaked Anthropic remarks: Opus 5.5 cost over $10B, AI market is "winner take all" — A_K_Nain · 2026-11-11
- ChatGPT users hit mass "could not load conversation" errors across devices while status page stays green — CleanSignalLab · 2026-11-11
- Anthropic engineer's Fable 5.2 one-shot 'AAA-level' game sparks AI-renaissance debate — RileyRalmuto · 2026-11-11
- Age-verified paying user calls out ChatGPT for still blocking consensual adult fiction — Scary_Fix_1295 · 2026-11-11
- User reports hitting usage limits after just ~15 messages on flash-lite — Weird-names · 2026-11-11
- Developer fights Claude's "clever" phrasing; standing instructions keep drifting — jkubicki · 2026-11-11