# GPT-5 vs Gemini 3 Pro (2026): Benchmarks, Price & Verdict | Alher Tech

> GPT-5 vs Gemini 3 Pro: 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/gpt-5-vs-gemini-3-pro/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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|  | GPT-5 | Gemini 3 Pro |
| --- | --- | --- |
| arenaElo | 1412 | 1405 |
| humanEval | 91.6 | 87.3 |
| sweBench | 65 | 63 |
| mmlu | 91.5 | 91.1 |
| gpqa | 63.8 | 62.5 |
| aime | 92 | 90 |
| Price in/out ($/M) | $1.25 / $10 | $7 / $21 |

## Our verdict

GPT-5 has the richer multimodal stack (audio in and out); Gemini 3 Pro has the larger context window and better multilingual coverage. Both sit within a few Elo points of each other, the decision is ecosystem.

[GPT-5](https://alhertech.com/en/ai-comparison/gpt-5/) · [Gemini 3 Pro](https://alhertech.com/en/ai-comparison/gemini-3-pro/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)