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OpenAI: 'GPT-6.1 Sol: near-Astra intelligence for a fifth of the price.'

OpenAI @OpenAI · x · 2026-09-29 · ★★★★ · archived

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Official launch post for GPT-6.1 Sol.

Summary

Official launch post; OpenAI calls GPT-6.1 Sol 'the most cost-efficient model for its performance available today'.

Archived text

GPT-6.1 Sol: near-Astra intelligence for a fifth of the price.

It’s the most cost-efficient model for its performance available today.

Media: https://video.twimg.com/amplify_video/2104984622191067137/vid/avc1/1920x1080/XqwxcETJ-aUHrd3Q.mp4?tag=29

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Archived 2026-09-29 via fxtwitter (unofficial).

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