OpenAI launches GPT-5.6 Sol in limited preview
OpenAI has launched the GPT-5.6 family featuring the Sol, Terra, and Luna models, with Sol serving as the flagship. The family is initially available via API and/or Codex for selected partners.
What happened?
On June 26, 2026, OpenAI presented its new GPT-5.6 model family, consisting of three versions: Sol, Terra, and Luna. GPT-5.6 Sol is the flagship model, while Terra offers a balance between cost and performance, and Luna is the fastest and most cost-effective variant.
Key facts
| Lanseringsdatum GPT-5.6 | 26 juni 2026 |
|---|---|
| Modellfamilj | GPT-5.6 (Sol, Terra, Luna) |
| Tillgänglighet | Begränsad förhandsvisning via API/Codex |
| Tillgänglig i ChatGPT | Nej (under förhandsvisning) |
”ChatGPT 5.6 Sol is not a universal ChatGPT replacement yet. It is a limited preview for selected trusted partners and organizations through the API and/or Codex.”
Why it matters
The launch marks the next step in the evolution of OpenAI's large language models. Availability is currently limited to selected partners via API and Codex, enabling testing and integration into applications under controlled conditions. This is a standard process for testing new models in practice before a broader rollout.
Who is affected?
Primarily affected are developers and organisations that are trusted partners of OpenAI. These entities will have the opportunity to explore and implement the new GPT-5.6 models into their systems. The general public and end users of ChatGPT are not affected at this stage, as no information regarding broader availability has been communicated.
Impact on the EU
Not relevant for EU status. The model is globally available via API for selected partners, regardless of geographic location.
What else you should know
OpenAI's help page states that GPT-5.6 is currently not available within ChatGPT during the preview period. No date for general availability has been announced.
Quick answers about this story
Vad har hänt?
När hände det?
Varför spelar det roll?
Vilka bolag berörs?
The link opens in a new window and leads to the publisher's own site.
Källan har spårats automatiskt från utgivaren via Aheadlines signalkedja.
AI-verktyg i artikeln
Topics
Get similar news straight to your inbox
The reader's room
Send in a question or an addition. The newsroom reads everything before it's published and replies when relevant. No AI-generated text – just people.
Sign in to submit a comment or question.
Read the article through your role
- Decide whether this affects strategy over 6–12 months or is just noise.
- Discuss with leadership: do we own the right question or does ownership need to move?
- Ask: what risk are we taking by NOT acting on this this quarter?
Generated angle — not editorial analysis of "OpenAI launches GPT-5.6 Sol in limited preview"