# GitHub Copilot vs GPT-5.5 (2026): Benchmarks, Price & Verdict | Alher Tech

> GitHub Copilot vs GPT-5.5: 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/github-copilot-vs-gpt-5-5/
- Site: Alher Tech (custom software, AI agents and SEO engineering, https://alhertech.com/)
- Contact: https://alhertech.com/en/contact/

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|  | GitHub Copilot | GPT-5.5 |
| --- | --- | --- |
| arenaElo | 1351 | 1432 |
| humanEval | 89.9 | 94.2 |
| sweBench | 55 | 66 |
| mmlu | 86.7 | 93 |
| gpqa | 55.1 | 68.7 |
| aime | 80 | 92 |
| Price in/out ($/M) | $0 / $0 | $12 / $48 |

## Our verdict

Different layers, not rivals. Copilot makes your SaaS development team ship more code per day; GPT-5.5 makes your SaaS end-users more productive inside the product. A correctly scoped enterprise SaaS build will budget both.

[GitHub Copilot](https://alhertech.com/en/ai-comparison/github-copilot/) · [GPT-5.5](https://alhertech.com/en/ai-comparison/gpt-5-5/) · [All AI model comparisons](https://alhertech.com/en/ai-comparison/)