Anthropic announces its new Claude Fable 5.1 model, noting it achieves twice the benchmark score of the earlier version, marking

Anthropic announces its new Claude Fable 5.1 model, noting it achieves twice the benchmark score of the earlier version, marking a significant performance jump for the company's AI lineup.

Claude Fable 5.1 delivers faster reasoning and lower error rates, according to internal tests that show the model completing standard language tasks in half the time required by its predecessor. It also reduces token usage by 20 percent, lowering computational costs for developers.

Benchmark results released by Anthropic compare the new model against industry standards, with the doubled score positioning Claude Fable 5.1 ahead of competing offerings from other major AI firms. The benchmark includes reasoning, coding and