Claude Fable 5 vs Claude Sonnet 4
Side-by-side comparison. Updated 2026-06-13.
Verdict
Claude Fable 5 wins on higher overall score (9.6 vs 8.8, +0.8).
- Larger context window (1000k vs 200k)
At a Glance
| Attribute | Claude Fable 5 | Claude Sonnet 4 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Tags | Agentic Coding Intelligent Reasoning | Intelligent Coding Multimodal |
| Context | 1,000,000 tokens | 200,000 tokens |
| Input price | $10.00/1M | $3.00/1M |
| Output price | $15.00/1M | $15.00/1M |
| 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 Sonnet 4 Strengths
- Excellent instruction following
- Strong coding ability
- Good reasoning
- Fast inference
- Competitive pricing