AI Battle > Rankings > Claude Fable 5.1 vs Claude Fable 5.1

Claude Fable 5.1 vs Claude Fable 5.1 (2026)

Head-to-head from public datasets. The better value in each row is highlighted; direction is stated per metric — for costs lower is better, for capability and speed higher is better. Pair sourced from the Humanity's Last Exam: Score ranking.

MetricClaude Fable 5.1Claude Fable 5.1
CreatorAnthropicAnthropic
Intelligence index53.453.2
Context window (tokens)1,000,000
Input price / 1M tokens$10$10
Output price / 1M tokens$50$50
Output speed (tok/s)
Time to first token (s)

Pair sourced from the Humanity's Last Exam: Score ranking; leader and runner-up there.

Interactive comparison

This static page is a snapshot rebuilt daily. The interactive comparison of Claude Fable 5.1 and Claude Fable 5.1 loads the same numbers from the live API.

Method

Values come from public benchmark datasets and provider list prices; see the methodology for sources, limitations and corrections. Prices are list prices — verify on the provider's pricing page before spending money.