Codex Adds GPT-5.6 Sol

scaling01 · x · 2026-07-09

The Codex repository has added GPT-5.6 Sol, Terra, and Luna. The post dubs GPT-5.6 Sol the "most powerful model to date," capable of handling complex code modifications, conducting deep research, and generating highly refined documentation. Users can initially test it with lower inference effort and scale up for more difficult tasks.

Related event: OpenAI Launches GPT-5.6 Series: Multi-Agent and Cost-Efficiency(119 posts)→

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