OpenAI
GPT-5.5 (high)
GPT-5.5 (high) is an OpenAI GPT-5.5 profile in this benchmark snapshot, part of the newest GPT-5.5 generation described by OpenAI as its most capable model line for ChatGPT and Codex work. Use this page to compare its reasoning setting against sibling GPT-5.5 variants on intelligence, coding, speed, latency, and price.
Introducing GPT-5.5Operational Metrics
Output Speed59.3 tok/s
First Token19.69s
Blended Price$11.25/M
Model Metadata
Queryable facts extracted from the upstream model payload.
ReleaseApr 23, 2026
Context Windown/a
Modalitiesn/a
Strength: Overall
Rank #2 across 500 models.
58.9
Strength: Coding
Rank #2 across 410 models.
58.5
Strength: GPQA
Rank #3 across 478 models.
93.2%
Watch Area: Output $
Rank #310 across 325 models.
$30.00/M
Watch Area: Blended $
Rank #309 across 325 models.
$11.25/M
Watch Area: Input $
Rank #309 across 325 models.
$5.00/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 58.9 | #2 |
| Artificial Analysis Coding Index | coding | 58.5 | #2 |
| GPQA | reasoning | 93.2% | #3 |
| Humanity's Last Exam | reasoning | 43.0% | #3 |
| SciCode |