"GPT-6 Sol" is not an OpenAI model — you probably want gpt-5.6-sol or gpt-6-astra
Mapping a community label onto official ids
The name has two places of origin: a Feature requests thread on the OpenAI developer community (content dated 2026-09-11 to 2026-09-12, titled "GPT-6 Sol, Terra, and Luna?"), and a 2026-09-16 Chinese tech-press write-up of "grey-scale testing / shipping this week" which itself states the news "has not been officially confirmed by OpenAI". OpenAI has never shipped a GPT-6 Sol: no id, no date, no price.
Updated 2026-09-19
Four key points
Official release date
No GPT-6 Sol entry exists in OpenAI's official channels.
Official model id
Neither the pricing page nor the model pages list gpt-6-sol.
Closest live tier (in/out)
Pricing page archived 2026-09-12: $4 / $20, promotional at least through 2026-11-21.
The other live tier
Same archive: $10 / $50. It has the 6 in the name, but the model is Astra.
What this is
"GPT-6 Sol / Terra / Luna" is a set of names people discussed in a feature request, not a product line. The real neighbouring models are gpt-5.6-sol, gpt-5.6-terra and gpt-5.6-luna (the Sol family) plus gpt-6-astra. Searching for "GPT-6 Sol" usually means the 5.6 model name and the generation-6 label got merged.
What happened
Thread content is dated 2026-09-11 to 2026-09-12. Re-checked 2026-09-18 against the official pricing page archived 2026-09-12: gpt-6-sol is not listed.
Timeline
2026-09-11 to 2026-09-12 the community thread "GPT-6 Sol, Terra, and Luna?" discusses the names under Feature requests.
2026-09-12 official pricing archive: callable ids are gpt-5.6-sol and gpt-6-astra; gpt-6-sol is absent.
2026-11-21 is the only Sol-related date OpenAI publishes: at least how long gpt-5.6-sol keeps its promotional price.
Confirmed vs caution
Officially confirmed
What official sources do confirm: OpenAI's news RSS, captured 2026-09-18, holds 1209 items with the newest published 2026-09-17 and zero mentions of GPT-6 Sol; the pricing page archived 2026-09-12 lists gpt-5.6-sol ($4 / $20) and gpt-6-astra ($10 / $50) with no gpt-6-sol.
⚠️ Caution
Reading those names as a "leaked next generation" is interpretation, not information. Two places trace back to them: a Feature requests thread on the OpenAI developer community from 2026-09-11, and a 2026-09-16 Chinese tech-press report of "grey-scale testing / shipping this week" that itself says the news "has not been officially confirmed by OpenAI". This page treats both as rumor and adopts neither: no capability, date or price for GPT-6 Sol.
Same vs differs
Same
gpt-5.6-sol and gpt-6-astra are both official ids, both callable, both priced on the official page.
Differs
"GPT-6 Sol" is neither: not part of the 5.6 family, not an official 6-generation model — so far the name is only seen in a community feature-request title and a 2026-09-16 press report.
What to do
Decide what you actually want: the strongest reasoning tier of the Sol family is gpt-5.6-sol; the generation-6 model is gpt-6-astra. Do not put gpt-6-sol in a config — the id does not exist and the call will fail.
On QCode
gpt-5.6-sol and gpt-6-astra are both on sale on QCode with real 30-day traffic, on one key. "GPT-6 Sol" is not a model in OpenAI's documentation, so there is no id for QCode to add; availability follows /models.
FAQ
Does GPT-6 Sol exist?
It does not exist as an official model. The name appears in the title of an OpenAI community feature-request thread and again in a 2026-09-16 Chinese tech-press report; OpenAI's model page, pricing page and news feed carry no such entry.
So what is Sol?
The live Sol is gpt-5.6-sol — $4 / $20 per 1M tokens in the pricing page archived 2026-09-12, promotional at least through 2026-11-21.
What if I wanted GPT-6?
The generation-6 id is gpt-6-astra at $10 / $50 in the same archive. Sol and Astra are different tiers; don't merge them.
And Terra / Luna?
The official family is gpt-5.6-terra and gpt-5.6-luna. "GPT-6 Terra" and "GPT-6 Luna" appear only as labels in that same community thread.
Could it be named GPT-6 Sol later?
Unknowable — OpenAI hasn't said, and this page makes no naming predictions. What is certain today: gpt-6-sol is not a usable id. It isn't in QCode's model list and not on OpenAI's model or pricing pages, so setting it will not route anywhere.
How fresh is this?
Conclusions are dated 2026-09-18 and the prices come from the 2026-09-12 pricing archive. If OpenAI ships a new Sol, this page is stale.
Sources
OpenAI developer community thread (captured 2026-09-18) and the OpenAI pricing page archived 2026-09-12. Defer to the official model and pricing pages.
Use the two tiers that actually exist
One QCode key covers gpt-5.6-sol and gpt-6-astra — switch by model id.
Related
Sol vs Terra vs Luna
What actually differs inside the official 5.6 family.
GPT-6 Astra quota burn
Real usage shape if you want generation 6.
GPT-5.5 retirement
A separate official event on 2026-10-14.
This page separates three tiers: what is officially confirmed, what is rumour or leak, and what remains unconfirmed — no official id, date or price. Unreleased models get no capability claims and no leaked benchmarks.