OpenAI has officially launched the GPT-5.6 family of models, including Sol, Terra, and Luna, for general availability.

Key Details

• GPT-5.6 Sol is the flagship model, designed for high performance across coding, knowledge work, and science.
• GPT-5.6 Terra is a balanced model for everyday work, while GPT-5.6 Luna is the most cost-efficient tier.
• The launch includes a new Response API feature called Programmatic Tool Calling and a multi-agent beta.
• Individuals can request Trusted Access for Cyber defensively, requiring hardware-backed passkeys by September 1.

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