# Claude Haiku 4.5 vs GPT-5 mini (2026): Benchmarks, Price & Verdict | Alher Tech

> Claude Haiku 4.5 vs GPT-5 mini: 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-haiku-4-5-vs-gpt-5-mini/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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|  | Claude Haiku 4.5 | GPT-5 mini |
| --- | --- | --- |
| arenaElo | 1274 | 1288 |
| humanEval | 78.2 | 81 |
| sweBench | 40.6 | 50 |
| mmlu | 81.5 | 82.4 |
| gpqa | 48 | 50.1 |
| aime | 60 | 78 |
| Price in/out ($/M) | $1 / $5 | $0.25 / $2 |

## Our verdict

GPT-5 mini is cheaper per token ($0.25 vs $1 input) and has 2× the context. Haiku has tighter coding and better safety defaults. Default to GPT-5 mini; upgrade to Haiku if Anthropic compliance matters.

[Claude Haiku 4.5](https://alhertech.com/en/ai-comparison/claude-haiku-4-5/) · [GPT-5 mini](https://alhertech.com/en/ai-comparison/gpt-5-mini/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)