Opus 5.5 is now available in Magic Patterns.
In our internal evals, it matched Opus 5’s quality while using 33% fewer tokens. That means your credits go further, giving you more room to explore ideas and refine your designs.
GPT-6 Sol dropped an hour after Opus 5.5, so it got the same 9 real Windows tasks.
Same code, same machine, judged on the files on disk: Opus 5: 9/9 · 84 steps Opus 5.5: 7/9 · 109 steps GPT-6 Sol: 7/9 · 150 steps One run each. Clip: Opus 5.5 vs Sol, same task, real time.
Claude Opus 5.5 just dropped.
Fable 5.1-level for most tasks. 40% cheaper to run than Opus 5. First model in the Claude 5.5 family.
Anthropic Drops Opus 5.5
Faster, cheaper, more agentic ⚡️ Meet the first model in Anthropic's Claude 5.5 family: • Agentic coding & computer use • Matches Fable 5.1 • 40% cheaper & 30% faster than Opus 5 • 1M context | 128K max output • $4 in / $20 out per 1M tokens
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All of Claude Opus 5