Compare Models

Evaluate leading AI models side-by-side. Compare context windows, open-weights licensing, parameters, and verified benchmarks to choose the right model for your application.

Comparing 1 of 4 models
Model Comparison Matrix
GPT-5.5 Instant

GPT-5.5 Instant

OpenAI

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TypeAPI Only
Release DateMay 5, 2026
LicenseProprietary
Parametersundisclosed
Modalities
textimagepdf
Context Window400K tokens
Primary Taskchat reasoning
Release Date2026-05-05