Proprietary
- Params
- —
- Context
- 1M
- Released
- Apr 2026
OpenAI's flagship — agentic coding, computer use, 1M context, GPT-5.4 latency..
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// COMPARISON
GPT-5.5
A head-to-head benchmark comparison of GPT-5.5 across 7 evaluations.
The models
Benchmark comparison
| Benchmark | GPT-5.5 |
|---|---|
| agentic | |
| BrowseComp | 59.7% |
| code | |
| SWE-bench Verified | 76% |
| general | |
| MMLU-Pro | 87.5% |
| math | |
| AIME 2025 | 93% |
| reasoning | |
| ARC-AGI-2 | 7.2% |
| GPQA Diamond | 88.4% |
| Humanity's Last Exam | 28.4% |
Best result per row highlighted in cyan. Each benchmark links to its definition and sources; each model links to its full scorecard.
Frequently asked questions
Which of these models is best for coding? ▶
GPT-5.5 has the strongest result on SWE-bench Verified among the models compared here. See the code-category rows in the table for the full picture.
How many benchmarks are compared? ▶
This comparison covers 7 benchmarks on which at least one of the selected models has a published score.
Where do the benchmark scores come from? ▶
Scores are aggregated from official model cards, technical reports and standard public evaluations, and link back to each benchmark's source. They are updated as new results are published.
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