OpenAI
GPT-5.5 Instant (May 2026)
GPT-5.5 Instant (May 2026) 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-5.5Model Snapshot
ReleaseMay 5, 2026
Overall
Rank #74 across 523
41.8
Coding
Rank #30 across 433
45.1
Blended Price
Rank #343 across 355
$11.25/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.
Model Details
Runtime
Max Outputn/a
Streaming speed is not measured for this model yet.
Pricing
Blended$11.25/M
Input$5.00/M
Output$30.00/M
Metadata
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 41.8 | #74 |
| Artificial Analysis Coding Index | coding | 45.1 | #30 |
| GPQA | reasoning | 84.6% | #66 |
| Humanity's Last Exam | reasoning | 20.3% | #75 |
| SciCode |