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.
I installed opus 5.5 into a fly.
It turned 10 sol into 31.6 sol. Astra 6 in the fly next to it went to 2.9. same body. same feed. same 10 SOL. only the brain was different. every fly got two buttons: → RED: ape the ping right now → GREEN: wait for the rule ASTRA went first.
One early tester finished a 680,000-line code migration with Claude Opus 5.5 in less than a day
Work Anthropic says would have taken an engineering team weeks. And on typical workloads it costs 40% less to run than Opus 5.
Claude has released Opus 5.5.
Claudeai I swear your old models get dumber once you launch a new model Sonnet 5 used to be on fire helping me code with little to no mistakes Now give a very small task and he would f things up unless you use a "better" model
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