OpenAI launches GPT-5.6 and ChatGPT Work following US approval
OpenAI has launched the GPT-5.6 series, including the Sol, Terra, and Luna models, alongside the new agent ChatGPT Work. The release follows approval from the US government.
What happened?
OpenAI has officially launched its new GPT-5.6 model series, which includes the Sol, Terra, and Luna versions. Simultaneously, the company introduced ChatGPT Work, a new agent designed for long-term tasks. The launch occurs after the White House reportedly requested a delay due to national security concerns.
Key facts
| Lanserade modeller | GPT-5.6 (Sol, Terra, Luna), ChatGPT Work |
|---|---|
| Godkännande | USA:s regering |
| Tillgängliga via | ChatGPT, Codex, OpenAI API |
| GPT-5.6 Terra kostnad | 2x billigare än GPT-5.5 |
”OpenAI launches both GPT-5.6 and ChatGPT Work today after approval from the U.S. government”
”OpenAI released its 'strongest model yet' on Thursday, after its rollout was delayed at the U.S. government's request.”
”In its original blog post announcing the models, OpenAI called GPT-5.6 Sol its 'strongest model yet,' with benchmarks showing it largely on par with Anthropic's latest Mythos model.”
Why it matters
The development of GPT-5.6, described as OpenAI's "strongest model to date," marks an advancement in generative AI. The delay of the launch due to federal objections highlights growing regulatory challenges for AI developers and government bodies concerned with security aspects. The availability of different versions (Sol, Terra, Luna) aims to offer flexibility in both performance and cost for users.
Who is affected?
The launch affects developers using OpenAI's API, as well as users of ChatGPT and Codex. Companies integrating OpenAI's models into their services gain access to new features and performance improvements. Policymakers in the US and globally continue to manage AI security and policy challenges.
What else you should know
GPT-5.6 Sol is reportedly comparable to Anthropic's Mythos model. GPT-5.6 Terra offers similar performance to GPT-5.5 but at half the cost, while Luna is the most affordable model with "strong capabilities." All models are available via ChatGPT, Codex, and the OpenAI API.
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