Claude Fable 5 vs Claude Opus 4.8

Side-by-side comparison. Updated 2026-06-13.

Verdict

Claude Opus 4.8 wins on higher overall score (9.7 vs 9.6, +0.1).

Both models score equally. Pick based on which strengths align with your workload.

Claude Fable 5
by Anthropic
9.6 /10 Elite
Full review →
Claude Opus 4.8
by Anthropic
9.7 /10 Elite
Full review →

At a Glance

Side-by-side comparison of Claude Fable 5 and Claude Opus 4.8
Attribute Claude Fable 5 Claude Opus 4.8
Provider Anthropic Anthropic
Tags Agentic Coding Intelligent Reasoning Intelligent Reasoning Agentic Multimodal
Context 1,000,000 tokens 1,000,000 tokens
Input price $10.00/1M $15.00/1M
Output price $75.00/1M $75.00/1M
Input modalities Image, Text Text
Output modalities Text Text

Claude Fable 5 Strengths

  • Built for autonomous agentic workflows with native tool use and structured outputs
  • 1M-token context window enables long-horizon tasks
  • Strong reasoning capabilities with verifiable chain-of-thought
  • Multimodal input: text, images, and files
  • Competitive pricing at $10/$50 per million tokens

Claude Opus 4.8 Strengths

  • Best-in-class reasoning depth
  • Superior coding ability
  • Strong agentic task performance
  • Consistent long-running work handling
  • 1M token context window
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