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.
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