Claude Fable 5.1 vs Claude Fable 5

A side-by-side comparison of Claude Fable 5.1 and Claude Fable 5 — intelligence, context, capabilities, and price.

Spec
Claude Fable 5.1 logoClaude Fable 5.1
Claude Fable 5 logoClaude Fable 5
Context window1M1M
Streaming
Reasoning
Tool use
Web search
Vision (image input)
Document input
Video
Audio
Claude Fable 5.1 pricing
  • Input$10 / 1M tokens
  • Cached input$0.25 / 1M tokens
  • 5m cache write$12.5 / 1M tokens
  • 1h cache write$20 / 1M tokens
  • Output$50 / 1M tokens
  • Web search (when used)$10 / 1,000 searchs

Provider-equivalent rates. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.

View Claude Fable 5.1details →
Claude Fable 5 pricing
  • Input$10 / 1M tokens
  • Cached input$1 / 1M tokens
  • 5m cache write$12.5 / 1M tokens
  • 1h cache write$20 / 1M tokens
  • Output$50 / 1M tokens
  • Web search (when used)$10 / 1,000 searchs

Provider-equivalent rates. Higher reasoning can use more output tokens. TryAI charges a one-credit minimum and rounds each run's aggregate cost up once.

View Claude Fable 5details →

Claude Fable 5.1 vs Claude Fable 5: FAQ

Is Claude Fable 5.1 better than Claude Fable 5?
Anthropic's newest frontier model for coding, knowledge work, and long-horizon agentic runs. Beats both Fable 5 and Opus 5 on Terminal-Bench 4.0 (55.8%), CursorBench 3.2 (73.4%), and Humanity's Last Exam (65.0% with tools), at 75% cheaper cache reads than Fable 5. Anthropic's previous top-end model for hard reasoning and long-horizon agentic work. Scores 62 on the AA Intelligence Index v4.1, now succeeded by Fable 5.1 on both quality and cache pricing. The best choice depends on your workload — compare context window, capabilities, and price above, or try both on TryAI.
Which is cheaper, Claude Fable 5.1 or Claude Fable 5?
See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.