# GPT-5 mini vs DeepSeek V3 (2026): Benchmarks, Price & Verdict | Alher Tech

> GPT-5 mini vs DeepSeek V3: 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-mini-vs-deepseek-v3/
- 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 mini | DeepSeek V3 |
| --- | --- | --- |
| arenaElo | 1288 | 1355 |
| humanEval | 81 | 86 |
| sweBench | 50 | 42 |
| mmlu | 82.4 | 88.5 |
| gpqa | 50.1 | 59.1 |
| aime | 78 | 59.4 |
| Price in/out ($/M) | $0.25 / $2 | $0.27 / $1.1 |

## Our verdict

DeepSeek V3 is roughly the same price on the DeepSeek API and can be self-hosted; GPT-5 mini has vision, better tool-calling and the OpenAI ecosystem. For on-prem deployments, V3. For anything multimodal or tool-heavy, GPT-5 mini.

[GPT-5 mini](https://alhertech.com/en/ai-comparison/gpt-5-mini/) · [DeepSeek V3](https://alhertech.com/en/ai-comparison/deepseek-v3/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)