The Complete Guide to GPT-5.6 Mini / Nano
The smallest, cheapest tiers beyond Sol/Terra/Luna
Beyond the three tiers OpenAI pushes hardest (Sol, Terra, Luna), the GPT-5.6 family also has the smaller, cheaper Mini and Nano. As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano; please use another GPT model, such as gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra.
Updated 2026-10-08
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Four key facts
GPT-5.6 family launch
The GPT-5.6 family previewed on 2026-06-26 and became generally available on July 9, with official messaging focused on Sol, Terra and Luna; Mini and Nano are the smaller, cheaper tiers of the same family.
QCode · as of 2026-10-08
As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano, and neither id is on /models any more; please use another GPT model, such as gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra.
Positioning
Mini and Nano are smaller, cheaper tiers within the GPT-5.6 family beyond Sol/Terra/Luna; our earlier GPT-5.6 page only covered those three flagship tiers.
Use case
Suited to extremely cost-sensitive scenarios where the task itself is simple — like very high-frequency classification or basic formatting.
What Mini and Nano are
OpenAI publicly promotes the GPT-5.6 family's Sol, Terra, and Luna tiers (already covered in depth on this site), but the family also includes smaller, cheaper Mini and Nano tiers — following the GPT series' longstanding 'mini/nano' tradition of a smaller parameter footprint in exchange for lower unit cost, suited for extremely price-sensitive, simple tasks. As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano, and neither id is on /models any more. This page only covers what the two tiers are and what they suit; for GPT models on QCode, please use gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra.
Why these two tiers never got their own page before
Our earlier GPT-5.6 coverage focused on the officially-promoted Sol, Terra, and Luna tiers (previewed 2026-06-26, generally available 07-09); Mini and Nano have gotten noticeably less public coverage and discussion. This page draws mainly on public information about the GPT-5.6 family to explain what the two tiers are and which tasks they suit; as of 2026-10-08, QCode does not offer either of them.
Timeline
The GPT-5.6 family previews, followed by general availability on July 9; official messaging focuses on Sol, Terra, and Luna.
Mini and Nano launch alongside as smaller, cheaper tiers, without the same level of official promotion.
As of 2026-10-08: QCode does not offer gpt-5.6-mini or gpt-5.6-nano, and neither id is on /models any more; please use another GPT model, such as gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra.
Confirmed vs. needs your own verification
Confirmed
The GPT-5.6 family previewed on 2026-06-26 and became generally available on July 9 (see our GPT-5.6 guide). As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano, and neither id is on /models any more.
Needs your own verification
Mini and Nano have not had the official promotion Sol/Terra/Luna got, and public information on their exact capability boundaries (like complex reasoning performance) is limited, so don't assume the Sol/Terra/Luna benchmark conclusions carry over.
Good fit for Mini/Nano vs. needs a higher tier
A good fit for Mini/Nano
Extremely simple tasks, extreme cost sensitivity, and an acceptable lower capability ceiling — like very-high-volume simple classification or formatting.
Needs Sol/Terra/Luna or higher
Complex reasoning, long-context comprehension, or high-quality generation — Mini/Nano's ceiling isn't built for this; use a flagship tier instead.
How to use them
As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano, so requests with these two model IDs will not succeed. For lightweight tasks, switch to another GPT model, such as gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra: call it by model ID, and run a small-scale test of output quality and usage before committing to large production batches.
What to do on QCode
As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano, nor gpt-6-luna or gpt-5.6-luna (both removed from /models); please use another GPT model, such as gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra. QCode bills per token, with each model’s unit price on /models; for cost-sensitive lightweight tasks, run a small trial before scaling up.
FAQ
Can I call Mini and Nano on QCode right now?
No. As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano, and neither id is on /models any more; please use another GPT model, such as gpt-6.1-sol, gpt-6-sol or gpt-5.6-terra.
Why is there so little public information on Mini and Nano?
Partly because these tiers target extremely lightweight use cases with inherently lower demand, and partly because they haven't gotten the same official promotion as Sol/Terra/Luna, so public coverage and discussion are much thinner.
How do Mini/Nano relate to Sol/Terra/Luna?
All are part of the GPT-5.6 family; Sol/Terra/Luna are the officially-promoted flagship-to-mid tiers, while Mini/Nano are smaller, cheaper supplementary tiers.
What are Mini/Nano good for?
Extremely cost-sensitive scenarios where the task itself is simple — high-frequency simple classification or formatting; not recommended for complex reasoning tasks.
How do I decide between Mini and Nano?
They're positioned similarly, with Nano usually smaller and cheaper than Mini; test both at small scale on your specific task before deciding.
How are GPT models billed on QCode?
Per token, with each model’s unit price on /models. As of 2026-10-08, QCode does not offer gpt-5.6-mini or gpt-5.6-nano; for GPT models, use gpt-6.1-sol, gpt-6-sol, gpt-5.6-terra or similar.
Sources
The GPT-5.6 family's preview and general-availability dates (2026-06-26, 07-09) come from an already-verified GPT-5.6 page on this site; the status that QCode does not offer gpt-5.6-mini or gpt-5.6-nano comes from a 2026-10-08 check of the QCode API and the /models catalog.
Lightweight tasks? Use another GPT model on QCode
QCode does not offer gpt-5.6-mini or gpt-5.6-nano; one QCode key calls gpt-6.1-sol, gpt-6-sol, gpt-5.6-terra and other GPT models, billed per token with unit prices on /models.
Related reading
The complete GPT-5.6 guide (Sol/Terra/Luna)
Detailed benchmarks and pricing for the GPT-5.6 family's flagship tiers.
The complete QCode.cc pricing guide
The 7 plan tiers and how billing works.
Subscription vs. API: will a 24/7 agent eat through your plan?
Cost-optimization thinking for extremely lightweight tasks.
This page's model positioning is based on public information and is not an official OpenAI statement; official pages prevail. QCode status was checked on 2026-10-08; model availability is as shown on /models.