Claude Fable 5 vs GPT-5.5 Pro
Side-by-side comparison. Updated 2026-06-13.
Verdict
Claude Fable 5 wins on higher overall score (9.6 vs 9.5, +0.1).
- ~67% cheaper input
At a Glance
| Attribute | Claude Fable 5 | GPT-5.5 Pro |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Tags | Agentic Coding Intelligent Reasoning | Agentic Coding Intelligent Long Context Reasoning |
| Context | 1,000,000 tokens | 1,050,000 tokens |
| Input price | $10.00/1M | $30.00/1M |
| Output price | $180.00/1M | $180.00/1M |
| Input modalities | Image, Text | Image, 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
GPT-5.5 Pro Strengths
- Unmatched deep reasoning for complex high-stakes workloads
- 1M+ token context window with image input support
- Excels at long-horizon agents and multi-step coding
- Precise execution across agentic workflows