Anthropic launches Claude Opus 5.5, matching Fable 5.1 performance at ~40% lower total cost

Anthropic 发布 Claude Opus 5.5，性能对标 Fable 5.1 且总成本低约 40%

Anthropic released Claude Opus 5.5, which matches Fable 5.1 on most tasks while cutting total operating costs by roughly 40%. Input pricing drops to $4 per million tokens, output to $20, and cache reads are 60% cheaper. The model generates output over 30% faster, and subscriber usage limits stretch about 25% further. On coding benchmarks like Terminal-Bench 4.0, Opus 5.5 beats OpenAI's GPT-6 Astra at 20–40% of the per-task cost. Anthropic also says the model writes more naturally, puts key info first, and tones down the formulaic 'Claudish' style users have complained about. Sonnet 5.5 and Haiku 5.5 are coming in the next few weeks.

Why it matters: Anthropic drops Opus 5.5, matching Fable 5.1 at ~40% lower cost with $4/M input, 60% cheaper cache, 30%+ faster generation, and Terminal-Bench scores above OpenAI. HKR all hit: cost + style fix create suspense, hard numbers deliver knowledge, 'Claudish' gripe resonates with Cl...