OpenAI has announced the GPT-5.6 series. GPT-5.6 Sol is the flagship model and comes with OpenAI's strongest AI safety protections yet according to the brand. GPT-5.6 Terra is designed for everyday tasks and delivers performance similar to GPT-5.5 while costing half as much. OpenAI also introduced a new naming system where the version number represents the model generation while Sol, Terra and Luna identify different performance tiers. Read more in our articles including "OpenAI unveils GPT-5.6 with Sol, Terra, Luna AI models" and "OpenAI to merge ChatGPT, Codex, browser into one app".
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Feb 10, 2026OpenAI has announced the GPT-5.6 series. GPT-5.6 Sol is the flagship model and comes with OpenAI's strongest AI safety protections yet according to the brand.
GPT-5.6 Terra is designed for everyday tasks and delivers performance similar to GPT-5.5 while costing half as much. OpenAI also introduced a new naming system where the version number represents the model generation while Sol, Terra and Luna identify different performance tiers.
Our coverage of OpenAI GPT-5.6 Terra includes: "OpenAI unveils GPT-5.6 with Sol, Terra, Luna AI models"; "OpenAI to merge ChatGPT, Codex, browser into one app"; "OpenAI may launch desktop app for ChatGPT and coding tools". Each article provides unique insights and information.