SIRumors
ReleasedSep 29, 2026 ·

GPT-6.1 is out

OpenAI shipped GPT-6.1.

OpenAI

OpenAI released GPT-6.1 on Sep 29, 2026. The company announced it itself (OpenAI).

It follows GPT-6, 26 days earlier. Releases in the OpenAI GPT line usually land about 49 days apart.

Based on that pace, the next OpenAI GPT release is expected around Nov 17, 2026. That is our estimate, not a leak.

“Introducing GPT-6.1 Sol”
OpenAI
Released
Sep 29, 2026
Line
OpenAI GPT
Previous
GPT-6 (Sep 3, 2026)
Confirmed by
The company's own announcement

Source: OpenAI

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