# Claude Fable 5 vs Gemini 3 Ultra (2026): Benchmarks, Price & Verdict | Alher Tech

> Claude Fable 5 vs Gemini 3 Ultra: head-to-head 2026 comparison across Arena Elo, MMLU, GPQA, HumanEval, context window and pricing. Verdict + use cases.

- Canonical page: https://alhertech.com/en/ai-comparison/claude-fable-5-vs-gemini-3-ultra/
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- Contact: https://alhertech.com/en/contact/

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|  | Claude Fable 5 | Gemini 3 Ultra |
| --- | --- | --- |
| arenaElo | 1492 | 1441 |
| humanEval | 98 | 91 |
| sweBench | 77 | 66 |
| mmlu | 95.1 | 93.4 |
| gpqa | 92 | 72.6 |
| aime | 94 | 93 |
| Price in/out ($/M) | $10 / $50 | $18 / $72 |

## Our verdict

Gemini 3 Ultra has the larger context window (3M vs 1M) and native video, which Fable 5 does not match. Fable 5 leads on raw capability (frontier reasoning, long-horizon agents and coding) at a lower list price ($10 / $50 vs $18 / $72). For whole-movie or 2000-page workloads on Vertex AI, Ultra. For the hardest agentic and reasoning work where your data fits in 1M tokens, Fable 5.

[Claude Fable 5](https://alhertech.com/en/ai-comparison/claude-fable-5/) · [Gemini 3 Ultra](https://alhertech.com/en/ai-comparison/gemini-3-ultra/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)