OpenAI launches GPT-5.6 Sol, Terra, and Luna on apps and API
TLDR ● Covered by 6 sources
OpenAI released GPT-5.6, a new model family with three tiers—Sol, Terra, and Luna—across ChatGPT, Codex, and its API, rolling out globally starting today. Sol costs $5 input and $30 output per million tokens, Terra costs $2.50 input and $15 output, and Luna costs $1 input and $6 output per million tokens. The release adds multi-agent coordination through an ultra setting, stronger artifact generation for presentations and documents, and improved performance on coding, cybersecurity, and scientific tasks.
Why it matters
OpenAI has released its new frontier model family for ChatGPT Work, Codex, and the OpenAI API with three tiers: Sol (flagship), Terra (lower-cost), and Luna (fastest/most affordable). The series features higher intelligence per token, lower estimated cost for complex work, stronger agentic performance, and a new 'ultra' setting for coordinating multiple agents.
Also covered by
- Latent Space — [AINews] not much happened today
- The Neuron — OpenAI is Discontinuing ChatGPT Atlas
- Latent Space — [AINews] OpenAI launches GPT 5.6 Sol/Terra/Luna, Codex becomes ChatGPT superapp
- Simon Willison — The new GPT-5.6 family: Luna, Terra, Sol
- The Neuron — OpenAI's GPT-5.6 Clears Commerce Department Testing, Sol/Terra/Luna Launch Thursday
