GPT-5.5-2026-04-23
GPT-5.5-2026-04-23 is a language model part of OpenAI's GPT-5 series.
Input
Output
Context
—
Max Output
—
Parameters
—
Technical Specifications
Model TypeChat
Context Window—
Max Output Tokens—
Parameters—
Training Cutoff—
License—
Capabilities
Input Modalities
text
Output Modalities
text
Features
function_callingjson_modereasoningstreamingtext_generation
Resources & Links
Related Tools
Data sourced from official provider APIs and documentation
Last updated: May 5, 2026
Start building with the right model.
From model selection to production, one platform, no fragmentation.