catalog / openai

gpt-oss-20b

open-weight
context
128K

20B-parameter open-weight model.

Send openai/gpt-oss-20b to /v1/chat/completions — that is the channel name, not the catalog slug.

Discussion / source

Verified host.

Call it

curl
curl https://api.demonroute.com/v1/chat/completions \
  -H "Authorization: Bearer $DEMONROUTE_API_KEY" \
  -d '{"model":"openai/gpt-oss-20b","messages":[{"role":"user","content":"ping"}]}'