Opus 5 matches Fable 5 for half the price

anthropic released claude opus 5, citing performance close to the controversial fable 5 but with stricter cybersecurity safeguards and improved resistance to misuse following government negotiations. priced at $5 input and $25 output per million tokens, opus 5 is half the cost of fable 5 and targets enterprise knowledge work, leaving fable 5 for the most ambitious agent projects. the release also introduces a research preview 'fast mode' and automatic fallbacks to lower-tier models when safeguards block requests, maintaining price parity with the previous opus 4.8.