Anthropic Launches Claude Opus 5.5 with 40% Lower Cost
Anthropic released Claude Opus 5.5, the first model in the Claude 5.5 family, matching Claude Fable 5.1 on most tasks at 40% lower cost ($4/$20 per million tokens) and scoring 66.4% on Terminal-Bench.
2026-09-25 ~ 2026-09-26 · 2 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 launches at Fable 5.1-level performance with 40% lower cost — CurieuxExplorer · 2026-09-25
- Anthropic ships Opus 5.5 at $4/$20 — 40% cheaper, 66.4% on Terminal-Bench 4.0 — dl_weekly · 2026-09-26