Three New Models are Live

Three New Models are Live
# Live

Launched September 28

September 29, 2026
Victoria Bryer
Victoria Bryer
Three New Models are Live
☀️ GPT-6 Sol: OpenAI's fast, cost-efficient model for complex coding and agentic work. It brings GPT-6 Astra's advances in professional work and factuality at half the price of GPT-5.6 Sol. A strong new everyday default for demanding work.
🌙 GPT-6 Luna: OpenAI's most efficient model, built for focused, high-volume tasks. It brings GPT-6 capability to everyday work at a fraction of the cost. Great for quick, repeatable jobs at scale.
🧠 Claude Opus 5.5: Anthropic's leading model for long-running agentic and knowledge work. It performs at the level of Claude Fable 5.1 on most tasks and costs around 40% less to run than Opus 5.
⚙️ Availability
  • GPT-6 Sol and GPT-6 Luna are on wherever GPT-5.6 is already enabled.
  • Claude Opus 5.5 is on wherever a Claude Opus model is already enabled.
  • Everywhere else, they're off by default. Admins can switch them on in AI Governance. 🛡️
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