Claude Fable 5 vs Claude Opus 4.8

A side-by-side comparison of Claude Fable 5 and Claude Opus 4.8 — intelligence, context, capabilities, and price.

Spec
Claude Fable 5 logoClaude Fable 5
Claude Opus 4.8 logoClaude Opus 4.8
Context window1M1M
Streaming
Reasoning
Tool use
Web search
Vision (image input)
Document input
Video
Audio
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.

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Claude Opus 4.8 pricing
  • Input$5 / 1M tokens
  • Cached input$0.5 / 1M tokens
  • 5m cache write$6.25 / 1M tokens
  • 1h cache write$10 / 1M tokens
  • Output$25 / 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 Opus 4.8details →

Claude Fable 5 vs Claude Opus 4.8: FAQ

Is Claude Fable 5 better than Claude Opus 4.8?
Anthropic's highest-capability model for the hardest reasoning and long-horizon agentic work. Scores 60 on the AA Intelligence Index v4.1, just behind Opus 5 at max effort. Frontier all-rounder. Leads SWE-bench Pro (69%) at AA Intelligence Index v4.1 of 56 — the value pick just below Fable 5. 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 or Claude Opus 4.8?
See the pricing rows above for live per-token or per-generation costs. TryAI bills both from one pay-as-you-go balance.