Detailed comparison of capabilities, features, and performance.
| Feature | Gemini 3 Flash (thinking) | Claude Fable 5 |
|---|---|---|
| AI Lab | Anthropic | |
| Context Size | 1,048,576 tokens | 1,000,000 tokens |
| Max Output Size | 65,536 tokens | 128,000 tokens |
| Frontier Model | Yes | Yes |
| Vision Support | Yes | Yes |
| Description | Gemini 3 Flash with thinking enabled. Thinking level high for deeper reasoning while maintaining Flash-level speed. | Anthropic's most capable widely released model, with a 1M token context window, 128k max output, and always-on adaptive thinking. |
View detailed specifications and capabilities
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View model details →Access both Gemini 3 Flash (thinking) and Claude Fable 5 in a single workspace without managing multiple API keys.
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