Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks" while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens (Matthias Bastian/The Decoder)

TechmemeSeptember 22, 2026en

Matthias Bastian / The Decoder : Anthropic says Opus 5.5 matches Fable 5.1 “on most tasks” while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens — Ask about this article... According to Anthropic, Opus 5.5 matches Claude Fable 5.1 “on most tasks” while costing about 40 percent less to run than Opus 5.

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• Anthropic