Claude Opus 5.5 rolls out on Claude, API, AWS, Azure and Google Cloud, scoring 1846 on GDPval-AA v2.1
minchoi · x · 2026-09-23
Anthropic's Claude Opus 5.5 is live across Claude, the API, AWS, Google Cloud and Microsoft Azure, with Sonnet 5.5 and Haiku 5.5 arriving in the coming weeks.
Key numbers:
- GDPval-AA v2.1: Opus 5.5 scores 1846, ahead of Fable 5.1 (1735) and Opus 5 (1708)
- Anthropic claims default-effort Opus 5.5 beats GPT-6 Astra max at roughly 1/5 the cost per task
Related event: Anthropic Launches Claude Opus 5.5: Smarter, Faster and 40% Cheaper(54 posts)→
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