OpenAI
GPT-5.5 (medium)
GPT-5.5 (medium) 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 Speed57.5 tok/s
First Token4.70s
Blended Price$11.25/M
Model Metadata
Queryable facts extracted from the upstream model payload.
ReleaseApr 23, 2026
Context Windown/a
Modalitiesn/a
Strength: GPQA
Rank #4 across 478 models.
92.6%
Strength: Coding
Rank #4 across 410 models.
56.2
Strength: HLE
Rank #5 across 474 models.
40.6%
Watch Area: Output $
Rank #312 across 325 models.
$30.00/M
Watch Area: Blended $
Rank #311 across 325 models.
$11.25/M
Watch Area: Input $
Rank #311 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 | 56.7 | #6 |
| Artificial Analysis Coding Index | coding | 56.2 | #4 |
| GPQA | reasoning | 92.6% | #4 |
| Humanity's Last Exam | reasoning | 40.6% | #5 |
| SciCode |