GPT-5.5 changelog

Every change to GPT-5.5 that Modelpeers has recorded, newest first, each with the source it came from. The record starts Apr 23, 2026.

All (7)Releases (3)Retiring (2)Breaking changes (1)Quality (1)

May 2026

Perplexity and GPT-5.5

2 products from Perplexity AI and OpenAI

Default changeMay 3, 2026

GPT-5.5 becomes the default orchestration model in Perplexity Computer

Perplexity began rolling out GPT-5.5 as the default orchestration model in Computer for Pro and Max subscribers. GPT Image 2 became the default for image generation and editing in Computer.

After

GPT-5.5

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