Alex Getmanearly AI signals
Alex Getman @alexgetmancom · · Updated

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Anthropic released Claude Fable 5.1

⚡️ Anthropic released Claude Fable 5.1.

The benchmarks show a pretty solid upgrade, with the model beating the previous version and most of its main competitors across the majority of tests.

Base pricing hasn’t changed, cache reads are now 75% cheaper, and a typical task should cost around 25% less. For heavier agentic workloads, the savings can reach up to 45%.

Benchmark table for Claude Fable 5.1, showing its performance improvements over Fable 5, Opus 5, and GPT-5.6 Sol in categories like agentic scientific research, coding, knowledge work, and computer use.
ClaudeFable 5AnthropicClaude
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