OpenAI / lineage
OpenAI gpt-oss family
OpenAI’s gpt-oss checkpoints are separate downloadable models. The weights, serving runtime and hosted endpoint each bring their own requirements.
Family research reviewed · Official source notes below
- Standard models
- 3
- Independently rated
- 2 / 3
- Known token rates
- 3 / 3
- Global balanced frontier
- 1
This collection organises accepted catalogue identities. It does not certify equal weights, a shared licence, benchmark equivalence or current availability on every serving platform.
Compare exact catalogue rows
USD per 1M tokens. In / out are listed base rates; expand billing conditions before planning a request. LMArena scores measure the general preference board, not success on your engineering task. Unknown stays unknown.
Catalogue members
| Model | LMArena | Input / output $/M | Context / max output | Capabilities & conditions |
|---|---|---|---|---|
gpt-oss-safeguard-20bopenai/gpt-oss-safeguard-20b | Unrated | $0.075 / $0.300Listed base ratesBilling details
Tool, media, cache-write and service-tier charges may add dimensions. Read the full model evidence. | 131,072Output 65,536 | textTools yes · reasoning yesWeights unknownReleased 2025-10-29 |
gpt-oss-120bopenai/gpt-oss-120b | 1365.9±4.4 interval half-widthEffort: default | $0.150 / $0.600Listed base ratesBilling details
Tool, media, cache-write and service-tier charges may add dimensions. Read the full model evidence. | 131,072Output 65,536 | textTools yes · reasoning yesOpen weightsReleased 2025-08-05 |
gpt-oss-20bopenai/gpt-oss-20b | 1287.3±6.4 interval half-widthEffort: default | $0.018 / $0.090Listed base ratesBilling details
Tool, media, cache-write and service-tier charges may add dimensions. Read the full model evidence. | 131,072Output 32,768 | textTools yes · reasoning yesWeights unknownReleased 2025-08-05 |
Free and batch variants
These rows have different access or processing conditions. They are excluded from the standard-row counts above. A variant without a standard base remains a separately named variant.
- gpt-oss-20b (batch)batch · $0.024 in / $0.112 out per 1M
Sources and scope
- OpenAI model catalogue ↗
Exact named models on the vendor platform; not a promise about every reseller
Checked 2026-09-22 · official document opened and inspected
Source review does not refresh a price or transplant a benchmark score. Read the method and correction policy.
Questions this page answers
Are the OpenAI gpt-oss family models interchangeable?
No. These are exact catalogue rows with separate capability, pricing and rating evidence. Compare the checkpoint, serving endpoint, reasoning settings and required input types. A family name does not establish equivalent behaviour.
How many OpenAI rows are compared here?
3 standard rows, of which 2 have an accepted LMArena general score and 3 have known input and output token rates. 1 related free or batch variants are listed separately.
What do the prices and frontier counts mean?
Prices below are listed US dollars per million input or output tokens, before request-specific context tiers and other billing dimensions. The frontier count comes from the global balanced view. Neither a family price range nor a benchmark difference proves your task will be cheaper or more successful.
How current are the official notes?
The linked family research was reviewed 2026-09-22. That date is separate from each accepted catalogue observation and each vendor’s effective date. An official note applies to its named platform, not automatically to every reseller.