On Friday, Anthropic launched its Opus 5 model, the newest version of its long-standing heavyweight model. While smaller than Fable 5, the model will be both cheaper and less restrictive than Fable, likely making it preferable in most use cases. Notably, Opus 5 actually outperforms Fable 5 on a number of benchmarks included in the announcement. Opus 5 is launching only two months after Opus 4.8, which became available on May 28. Mythos 5, Fable 5 and Sonnet 5 all launched in June, leaving only…
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