Claude Fable 5 vs Gemini 3.1 Pro
How Claude Fable 5 (Anthropic) and Gemini 3.1 Pro (Google) compare on price, context window and best-fit use case.
In short: Claude Fable 5 is best for the hardest multi-step agentic and coding work, frontier reasoning, and long-running autonomous tasks where capability matters most, while Gemini 3.1 Pro suits long-document and multimodal workloads, RAG over huge corpora, and Google Cloud-native apps. On price it's $10.00 vs $2.00 (under 200K; $4.00 above) per 1M input tokens; on context, 1M tokens (128K max output) vs 2M tokens.
Verdict
Claude Fable 5 is the more capable pick (Bq score 98 vs 92). Choose Gemini 3.1 Pro if budget leads: its input price is $2.00 (under 200K; $4.00 above) per 1M vs $10.00.
| Spec | Claude Fable 5 | Gemini 3.1 Pro |
|---|---|---|
| Developer | Anthropic | |
| Context window | 1M tokens (128K max output) | 2M tokens |
| Input price /1M | $10.00 | $2.00 (under 200K; $4.00 above) |
| Output price /1M | $50.00 | $12.00 (under 200K; $18.00 above) |
| Modalities | text, image | text, image, audio, video |
| Best for | The hardest multi-step agentic and coding work, frontier reasoning, and long-running autonomous tasks where capability matters most. | Long-document and multimodal workloads, RAG over huge corpora, and Google Cloud-native apps. |
Claude Fable 5
- State-of-the-art reasoning and benchmarks
- Elite long-horizon agentic coding
- 1M context with adaptive thinking always on
- Scientific research and knowledge work
Gemini 3.1 Pro
- Largest mainstream context (2M)
- Strong multimodal reasoning
- Native Google ecosystem integration
- Competitive pricing