# DeepSeek V4 vs GPT-5 (2026): Benchmarks, Price & Verdict | Alher Tech

> DeepSeek V4 vs GPT-5: 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/deepseek-v4-vs-gpt-5/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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|  | DeepSeek V4 | GPT-5 |
| --- | --- | --- |
| arenaElo | 1395 | 1412 |
| humanEval | 91 | 91.6 |
| sweBench | 62 | 65 |
| mmlu | 91.5 | 91.5 |
| gpqa | 73 | 63.8 |
| aime | 90 | 92 |
| Price in/out ($/M) | $1.74 / $3.48 | $1.25 / $10 |

## Our verdict

On reasoning benchmarks DeepSeek V4 matches or beats GPT-5 (GPQA 73.0 vs 63.8) at a small fraction of the cost. GPT-5 retains the multimodal edge (audio) and tool-use ecosystem. The V4 release is the strongest case yet that frontier-tier intelligence is commoditizing: for any team that controls its own inference stack, V4 is the new default.

[DeepSeek V4](https://alhertech.com/en/ai-comparison/deepseek-v4/) · [GPT-5](https://alhertech.com/en/ai-comparison/gpt-5/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)