GPT-5.6 Instant Rolling Out in ChatGPT, Replacing 5.5 Instant

cristianperlado · reddit · 2026-08-07

OpenAI is rolling out GPT-5.6 Instant to ChatGPT, replacing the deprecated 5.5 Instant version. The update is currently live for some accounts.

Additionally, Free and Go users are getting a significant default model upgrade this week to GPT-5.6 Luna.

Related event: OpenAI Upgrades ChatGPT: Unified Model Experience and Unlimited Chat for Free Users(13 posts)→

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