Anthropic says Claude Opus 5.5 is available today

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@AnthropicAI

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Anthropic (@AnthropicAI) confirmed Claude Opus 5.5 is available today; see the same-day @claudeai launch thread. First Claude 5.5 model, Fable 5.1-level on most tasks, ~40% cheaper than Opus 5 on typical workloads.

Key Takeaways

• ✓@AnthropicAI confirms Opus 5.5 is available today.
• ✓First model in the Claude 5.5 family; Fable 5.1-level on most tasks.
• ✓About 40% cheaper than Opus 5 on typical workloads.

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Key Decision Metrics at a Glance

TL;DR Verdict

🏆 Benchmark RankRank

About 40% cheaper than Opus 5 on typical workloads.

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💰 Cost & PlansCompare

in: $4 / out: $20

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🛠️ Ecosystem & IDERules

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Up NextAnthropic ships Claude Opus 5.5: Fable 5.1-level on most tasks, ~40% cheaper than Opus 5

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About this article: compiled by the AICoder newsroom with AI assistance, based on the official and press sources cited above and checked against human-set editorial standards; vendor-reported figures are attributed as such.