GPT-5.5
OpenAI's GPT-5.5 is a chat model capable of various tasks, including code generation, function calling, and reasoning, with a notable context window of 1,050,000 tokens. It excels at generating text and code, and can also process images and streaming data.
Input
Output
Context
1050K
Max Output
128K
Parameters
-
Technical Specifications
Model TypeChat
Context Window1,050,000 tokens
Max Output Tokens128,000 tokens
ParametersNot available
Release DateApr 22, 2026
Training CutoffDec 1, 2025
Licenseproprietary
Open SourceNo
Input Modalities
ImageText
Output Modalities
Text
Capabilities
Benchmarks
Artificial Analysis
44.3%
HLE
93.5%
GPQA
56.1%
SciCode
74.9
Coding
54.8
Intelligence
69.0
Speed (tok/s)
56.6
TTFA (s)
56.6
TTFT (s)
Resources & Links
proprietary, Proprietary - API access only
Related Tools
Data sourced from official provider APIs and documentation
Last updated: Jun 24, 2026
Start building with the right model.
Automatically route workloads to the right model for every task, every time.