Verdict for GPT-5.6 searches: GPT-5.6 is real, but the current official evidence supports a limited preview, not broad public availability. OpenAI's June 26, 2026 GPT-5.6 Preview System Card describes Sol, Terra, and Luna and says broader availability is planned after the preview period. Treat claims that GPT-5.6 is generally available in ChatGPT or the API as unverified until OpenAI release notes or model docs list that route.
AiPedia only marks a model as available when the vendor's model docs, release notes, or system card make the route clear. If a name is circulating but the source is missing, the safest answer is to recheck the vendor page before making a buying or migration decision.
GPT-5.6 Sol, Terra, and LunaLimited preview
GPT-5.6 in general ChatGPT or API availabilityNo public GA source
OpenAI GPT route claims beyond the current docsRecheck required
Claude route claimsRecheck required
Gemini route claimsRecheck required
Grok, DeepSeek, Qwen, Kimi, Mistral, Llama, MiniMax, and Cohere route claimsRecheck required
What this means
- Searches like
gpt5.6,gpt-5.6, orgpt 5.6should route here first because model names can arrive before broad access. - Limited preview means the model has official evidence, but most buyers should not assume it is available in their product, API account, workspace, or region.
- For procurement, workflow migration, or benchmark interpretation, check the vendor's current model docs and the tool page that exposes the route.