Pyyan / Language Models / GPT-5.5

GPT-5.5

Previous flagship, launched April 2026.

currentOpenAI ↗Verified 2026-08-13

$5

per M input

Specifications

Input ($/Mtok)	$5
Output ($/Mtok)	$30
Licence	Proprietary
Released	24 Apr 2026

Official links

OpenAI official site

Compare with

All 5 side by side →

GPT-5.5 vs Claude Fable 5 →GPT-5.5 vs Claude Opus 5 →GPT-5.5 vs GPT-5.6 Sol →GPT-5.5 vs Gemini 3.1 Pro →GPT-5.5 vs Claude Sonnet 5 →

Also in Language Models

Claude Fable 5 · Anthropic Claude Opus 5 · Anthropic GPT-5.6 Sol · OpenAI Gemini 3.1 Pro · Google Claude Sonnet 5 · Anthropic