Claude Opus 5.5 tops Text Arena as Anthropic sweeps top six
Claude Opus 5.5 (High) debuts atop LMArena's Text Arena with a score of 1509, leading an Anthropic sweep of the top six spots, while offering strong price-performance at around $16/MToken.
2026-09-27 ~ 2026-09-27 · 4 related posts
- Episode 1: Anthropic Launches Claude Opus 5.5 with 40% Lower Cost(2026-09-25, 2 posts)
- Episode 2: Claude Opus 5.5 tops Text Arena as Anthropic sweeps top six(2026-09-27, 4 posts)
- Claude Opus 5.5 debuts #1 on Text Arena as Anthropic sweeps top six — arena · 2026-09-27
- Opus 5.5 reshapes Text Arena Pareto frontier at $16/MToken — arena · 2026-09-27
- Full Text Arena board: Anthropic top six, Meta muse-spark close at 4x cheaper — arena · 2026-09-27
1 near-duplicate retellings: majidmanzarpour