GET

/v1/models/openrouter/openrouter-stealth-union-alpha

provider openrouterstatus activefirst seen Sep 16, 2026last seen 57d agodeprecated Sep 17, 2026
rawIdstealth/union-alpha
displayNameUnion Alpha
idopenrouter-stealth-union-alpha
activitychat
schemaEndpointIdchat/completions
input · output
releasedAtno release date reported by the provider
firstSeenAt1789569723 — Sep 16, 2026
lastSeenAt1789686022 — 57d ago
pricingnot published by this provider’s list endpoint
contextWindow262144
maxOutput131072
modalities{"input":["text","image"],"output":["text"]}
capabilities{"max_tokens":true,"response_format":true,"temperature":true,"tool_choice":true,"tools":true,"top_p":true,"frequency_penalty":true,"presence_penalty":true,"reasoning":true,"reasoning_effort":true,"seed":true,"stop":true,"top_k":true,"structured_outputs":true}
knowledgeCutoff · openWeights · weightsUrl · requestMap · providerMetadatanot published by this provider’s list endpoint

Endpoints & schemas

GET /v1/schemas/openrouter →
endpointactivity
chat/completions
input · output
chat

endpoints matching this model — the provider has more, see /v1/schemas/openrouter

Sources

fieldrecorded source
contextWindowSource unknown — no source URL recorded.

listing

maxOutputSource unknown — no source URL recorded.

listing

modalitiesSource unknown — no source URL recorded.

listing

capabilities.max_tokensSource unknown — no source URL recorded.

listing

capabilities.response_formatSource unknown — no source URL recorded.

listing

capabilities.temperatureSource unknown — no source URL recorded.

listing

capabilities.tool_choiceSource unknown — no source URL recorded.

listing

capabilities.toolsSource unknown — no source URL recorded.

listing

capabilities.top_pSource unknown — no source URL recorded.

listing

capabilities.frequency_penaltyhttps://openrouter.ai/openapi.json

upstream-spec

/properties/frequency_penalty

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.presence_penaltyhttps://openrouter.ai/openapi.json

upstream-spec

/properties/presence_penalty

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.reasoninghttps://openrouter.ai/openapi.json

upstream-spec

/properties/reasoning

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.reasoning_efforthttps://openrouter.ai/openapi.json

upstream-spec

/properties/reasoning/properties/effort

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.seedhttps://openrouter.ai/openapi.json

upstream-spec

/properties/seed

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.stophttps://openrouter.ai/openapi.json

upstream-spec

/properties/stop

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.top_khttps://openrouter.ai/openapi.json

upstream-spec

/properties/top_k

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
capabilities.structured_outputshttps://openrouter.ai/openapi.json

upstream-spec

/properties/response_format

Source trace
9709efa676126a657890e5bf0e9023a994b5d23e905fee011f30c7755772fa97
{
  "endpointId": "chat/completions",
  "fetchedAt": 1789450216
}
activitySource unknown — no source URL recorded.
pricingSource unknown — no source URL recorded.
reasoningSource unknown — no source URL recorded.
requestMapSource unknown — no source URL recorded.
schemaEndpointIdSource unknown — no source URL recorded.

Use it

shell
$ curl https://modelschemas.com/v1/schemas/openrouter/chat/chat/completions # request schema
$ curl -X POST https://modelschemas.com/v1/validate -d '{"provider":"openrouter","endpointId":"chat/completions","payload":{…}}'
$ curl -X POST https://modelschemas.com/v1/estimate -d '{"provider":"openrouter","model":"stealth/union-alpha","usage":{"input_tokens":1200,"output_tokens":400}}'