OpenAI DevDay rumored to unveil GPT-6.1 with 8x speedup and Decisions API preview

ghumare64 · x · 2026-09-30

According to @mvkaran posting from OpenAI DevDay, OpenAI unveiled GPT-6.1 Sol, an ultrafast model claiming an 8x speedup, alongside a Decisions API preview.

Reposter @ghumare64 adds that models dubbed Jev, Laya, and Julia-1 have reportedly been approved via the Decisions API. These are third-party claims pending official confirmation.

Related event: OpenAI DevDay Launches GPT-6.1 Sol and Ultrafast Speed Tier(56 posts)→

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