GPT-5.5 Pre Release specs, prices, where it runs and its benchmark standing

Name: GPT-5.5 Pre Release
Author: OpenAI

top 10 on 0 of 1 · released Apr 23, 2026

Provider: OpenAI
Release date: Apr 23, 2026; Boards
Modalities: Text, Image, Files to Text; OpenRouter
Context window: 1.05M tokens; Pricing
Pricing: $5 in / $30 out per 1M tokens; All prices
Hosting: 7 priced API routes · Azure OpenAI (29 regions) · OpenRouter; Pricing Regions
Benchmarks: 1 board captured

Rank	Board	Category	Score	Of	Over time
13	GPQA DiamondReasoning · as “gpt-5.5-pre-release_xhigh”	Reasoning	94.0%	100

Category ranks, more models and catalog changes

Facts