Title: gpt-oss-20b | LLM EU
Canonical: https://llmeu.com/ga/models/gpt-oss-20b/
Markdown mirror: https://llmeu.com/ga/models/gpt-oss-20b.md
Machine-readable: https://llmeu.com/llms.txt (index) - https://llmeu.com/llms-full.txt (full catalogue) - https://llmeu.com/llms-catalogue.json
Provider: OpenAI
Licence: apache-2.0
Hosting: catalogue only %E2%80%94 not hosted on LLM EU yet
Sources: https://huggingface.co/openai/gpt-oss-20b

# gpt-oss-20b

[OpenAI](/ga/providers/openai/)

Athbhreithni%C3%BA deireanach: 14 DF%C3%B3mh 2026

## Ceannasacht agus %C3%B3st%C3%A1il

T%C3%A1 an tsamhail seo catal%C3%B3gaithe mar thagairt. N%C3%ADl s%C3%AD %C3%A1 h%C3%B3st%C3%A1il ar LLM EU f%C3%B3s, agus n%C3%AD sheirbhe%C3%A1lann aon phointe deiridh c%C3%A9adph%C3%A1irt%C3%AD %C3%AD anseo. T%C3%A9ann iarratais chuici chuig an sol%C3%A1thra%C3%AD go d%C3%ADreach, faoi th%C3%A9arma%C3%AD an tsol%C3%A1thra%C3%AD sin f%C3%A9in.

## Achoimre

Is %C3%A9 gpt-oss-20b an ceann is l%C3%BA de dh%C3%A1 mh%C3%BAnla r%C3%A9as%C3%BAna%C3%ADochta me%C3%A1chan oscailte OpenAI: 21B paraim%C3%A9adair ioml%C3%A1na, 3.6B gn%C3%ADomhach, cead%C3%BAnaithe faoi Apache-2.0 agus beag go leor le rith i thart ar 16GB cuimhne. Dearbha%C3%ADonn a chumra%C3%ADocht an fhuinneog comhth%C3%A9acs 131,072-comhartha c%C3%A9anna leis an tsamhail 120B. D%C3%ADr%C3%ADonn s%C3%A9 ar imscaradh %C3%A1iti%C3%BAil agus %C3%ADogair %C3%B3 thaobh aga moille de seachas ar an gc%C3%A1il%C3%ADocht is airde.

## Sonra%C3%ADochta%C3%AD

- Sol%C3%A1thra%C3%AD
  OpenAI (US)
- Fuinneog comhth%C3%A9acs
  131k
- Paraim%C3%A9adair
  20.91B
- M%C3%B3dlachta%C3%AD
  text
- Cead%C3%BAnas
  apache-2.0 %C2%B7 [licence](https://www.apache.org/licenses/LICENSE-2.0)
- Me%C3%A1chain oscailte
  yes
- D%C3%A1ta scaoilte
  05 L%C3%BAn 2025
- Tascanna
  [R%C3%A9as%C3%BAna%C3%ADocht](/ga/tasks/reasoning/), [Costas %C3%ADseal](/ga/tasks/cheap/), [C%C3%B3d%C3%BA](/ga/tasks/coding/), [Aisghabh%C3%A1il (RAG)](/ga/tasks/rag/)

## Teangacha

**L%C3%A1idir:** en

**S%C3%A1s%C3%BAil:** de, fr, es, it, pt, ja, zh

#### L%C3%A1idir

- en

#### S%C3%A1s%C3%BAil

- de
- fr
- es
- it
- pt
- ja
- zh

Gan fh%C3%ADor%C3%BA: n%C3%ADl an t-%C3%A9ileamh seo doicim%C3%A9adaithe ag an sol%C3%A1thra%C3%AD. %E2%80%94 a language is listed as strong only where a source claims it; the card links the evidence where one exists.

## Cathain a %C3%BAs%C3%A1idtear %C3%A9

#### L%C3%A1idreachta%C3%AD

- runs in about 16GB of memory
- same 131,072-token window as the larger sibling
- Apache-2.0 licence
- reasoning-effort control

#### Teorainneacha

- quality clearly below the 120B model
- harmony response format required
- no evaluation has been run by LLM EU

## Ceisteanna coitianta

### Is gpt-oss-20b served on LLM EU?

It has no endpoint in the catalogue, so it is catalogue only %E2%80%94 not hosted on LLM EU yet, with no region and no retention to report. A card whose status is "listed" is a catalogue entry, not a running deployment.

### Under what licence is gpt-oss-20b released?

gpt-oss-20b is recorded under apache-2.0. The recorded licence text is https://www.apache.org/licenses/LICENSE-2.0. The weights are downloadable (open_weights is true). LLM EU republishes the licence id and the link and gives no legal advice; the licence text governs.

### How large is gpt-oss-20b, and what context window does it have?

gpt-oss-20b is recorded at 21B total, 3.6B active (safetensors total 20,914,757,184) (source: https://huggingface.co/openai/gpt-oss-20b), with a context window of 131072 tokens (source: https://huggingface.co/openai/gpt-oss-20b/blob/main/config.json).

### Praghs%C3%A1il

T%C3%A1 an tsamhail seo catal%C3%B3gaithe mar thagairt. N%C3%ADl s%C3%AD %C3%A1 h%C3%B3st%C3%A1il ar LLM EU f%C3%B3s, agus n%C3%AD sheirbhe%C3%A1lann aon phointe deiridh c%C3%A9adph%C3%A1irt%C3%AD %C3%AD anseo. T%C3%A9ann iarratais chuici chuig an sol%C3%A1thra%C3%AD go d%C3%ADreach, faoi th%C3%A9arma%C3%AD an tsol%C3%A1thra%C3%AD sin f%C3%A9in.

### St%C3%A1das f%C3%ADoraithe

Nuair nach bhfuil foinse ag r%C3%A9imse, taispe%C3%A1nann an c%C3%A1rta mar rud neamhfh%C3%ADoraithe %C3%A9 seachas %C3%A9 a l%C3%ADonadh isteach. Is faisn%C3%A9is %C3%A9 r%C3%A9imse folamh.

Cialla%C3%ADonn LLM EU Verified doicim%C3%A9adaithe, n%C3%AD deimhnithe go dl%C3%ADthi%C3%BAil. N%C3%AD meas%C3%BAn%C3%BA comhr%C3%A9ireachta de chuid an AI Act %C3%A9 agus n%C3%AD comhlacht AE %C3%A9 LLM EU.

### Leaganacha agus malairt%C3%AD

- catalogue %C2%B7 Catal%C3%B3g amh%C3%A1in %C2%B7 [weights](https://huggingface.co/openai/gpt-oss-20b)

### Iarratas samplach

```
curl https://api.llmeu.com/v1/chat/completions \
  -H "Authorization: Bearer $LLMEU_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"gpt-oss-20b","messages":[{"role":"user","content":"Hello"}]}'
```

N%C3%ADl aon chluiche%C3%A1ras imscartha don tsamhail seo: n%C3%AD fhreastala%C3%ADonn aon chr%C3%ADochphointe uirthi, mar sin n%C3%AD bheadh aon %C3%A1it le dul ag iarratas.

### Tagarmharcanna

N%C3%ADl aon mheast%C3%B3ireacht foilsithe. Is bearna %C3%A9 seo, n%C3%AD toradh ceilte.

### Foins%C3%AD

- [huggingface.co](https://huggingface.co/openai/gpt-oss-20b)

### Loga athruithe an ch%C3%A1rta

- 05 L%C3%BAn 2025 %E2%80%94 D%C3%A1ta scaoilte
- 14 DF%C3%B3mh 2026 %E2%80%94 Athbhreithni%C3%BA deireanach

Athbhreithni%C3%BA deireanach: 14 DF%C3%B3mh 2026