OpenAI Launches GPT-5.6 with Three Tiers, Limited Access

OpenAI released GPT-5.6 on June 26, 2026, introducing three tiers: flagship Sol, everyday Terra, and budget Luna. Access is heavily restricted, with only approximately 20 US-approved entities able to use the new models.

Detected & updated continuously · Source: Ruma

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OpenAI (Republic Pre-IPO) (preopai)