6 September 2026
Anthropic releases new Claude models with cost cuts and hardware control
First reported
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- Anthropic released Claude Fable 5.1 and Mythos 5.1, reducing the cost to reuse cached text from $1 per million tokens to $0.25.
- Claude's science benchmark score more than doubled to 52.6 on Terminal-Bench-Science, a test measuring reasoning on scientific problems.