Plan event · 23 Sept 2026
All plan events · 31 providers tracked
Claudemodels
What moved
Claude Opus 5 was the newest Opus-line model in the registry → Claude Opus 5.5 added to the registry and given a model page (API claude-opus-5-5); no tracked Claude plan prices it yet
Anthropic released Claude Opus 5.5 on 2026-09-22 and its own models overview and rate card now list it at $4/$20 per 1M tokens (claude-opus-5-5, adaptive thinking, default effort medium) — about 40% cheaper to run than Claude Opus 5 at $5/$25, at Claude Fable 5.1 performance level on most work. The model enters the registry with a model page; the tracked Claude subscription tiers have not yet been re-checked against it, so no plan model list, price or cap changed in this entry.
Verified 2026-09-23 · source
Affected plans
More Claude events
- 2026-10-06 · Policy — Site disclosure: the claude.com/pricing “Models and usage” matrix marks the Fable row “50%
- 2026-10-06 · Models — Site correction: Claude Pro advertised Claude Fable 5 and Claude Fable 5.1 as included usa
- 2026-09-23 · Models — Anthropic own subscription tiers now carry Claude Opus 5.5: the claude.com/pricing Models
- 2026-09-01 · Models — Anthropic launches Claude Fable 5.1 (released 2026-09-01), the successor to Claude Fable 5