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Open OpenAI Launches GPT-5.6 with Sol, Terra and Luna Models for Different AI Workloads · AI Provider Index

OpenAI Launches GPT-5.6 with Sol, Terra and Luna Models for Different AI Workloads

OpenAI has launched GPT-5.6 across ChatGPT, Codex and its API. The new family includes the flagship Sol model, the balanced Terra model and the lower-cost Luna model, alongside new multi-agent capabilities for completing demanding professional work.