GPT-5.5 Pro
OpenAIGPTProprietary
Description
GPT-5.5 Pro is the Pro variant of GPT-5.5, designed for the hardest questions and highest-accuracy work. It scales reasoning further than GPT-5.5 with significantly more comprehensive, well-structured, and accurate responses, with especially strong performance in business, legal, education, science, and data analysis. Priced at $30/1M input and $180/1M output tokens with a 1M context window.
Release Date
2026-04-23
Parameters
—
Context Length
1.1M
Modalities
file, image, text
Capability Radar
80
general
0
coding
50
reasoning
43
scienceest.
90
agents
80
multimodal
Science uses a reasoning proxy when dedicated science benchmarks are unavailable.
Rankings
| Domain | #Rank | Score | Source |
|---|---|---|---|
| Agents & Tools | 36 | 62.0 | LS |
Benchmark Scores (LLM Stats)
Agents
BrowseComp
90.1%SR
GeneBench
33.2%SR
Finance
GDPval-MM
82.3%SR
Math
Humanity's Last Exam
57.2%SR
FrontierMath
39.6%SR
AA Evaluation Indices
No AA evaluation data available
LLM Stats Category Scores
Agents90
Search90
Finance80
General80
Multimodal80
Reasoning70
Vision60
Math50
Pricing
Input Price$30 / 1M tokens
Output Price$180 / 1M tokens
Blended Price (3:1)$67.5 / 1M tokens
Speed
No speed data available
Available Providers
(LS internal units)No provider data available