GET

/v1/models/openrouter/openrouter-openai-gpt-5-3-chat

provider openrouterstatus activefirst seen Mar 3, 2026last seen 15m ago
rawIdopenai/gpt-5.3-chat
displayNameOpenAI: GPT-5.3 Chat
idopenrouter-openai-gpt-5-3-chat
activitynot declared by the provider
firstSeenAt1772564061 — Mar 3, 2026
lastSeenAt1785091562 — 15m ago
contextWindow128000
maxOutput16384
modalities{"input":["text","image","file"],"output":["text"]}
pricing{"prompt":"0.00000175","completion":"0.000014","web_search":"0.01","input_cache_read":"0.000000175"}
capabilities["max_completion_tokens","max_tokens","response_format","seed","structured_outputs","tool_choice","tools"]

Endpoints & schemas

GET /v1/schemas/openrouter →
endpointactivityschemas
audio/speechaudiorequestinput responseoutput
audio/transcriptionsaudiorequestinput responseoutput
chat/completionschatrequestinput responseoutput
messageschatrequestinput responseoutput
responseschatrequestinput responseoutput
embeddingsembeddingsrequestinput responseoutput
videosvideorequestinput responseoutput
videos/alibaba/happyhorse-1.0videorequestinput responseoutput
videos/alibaba/happyhorse-1.1videorequestinput responseoutput
videos/alibaba/wan-2.6videorequestinput responseoutput
videos/alibaba/wan-2.7videorequestinput responseoutput
videos/bytedance/seedance-1-5-provideorequestinput responseoutput
videos/bytedance/seedance-2.0videorequestinput responseoutput
videos/bytedance/seedance-2.0-fastvideorequestinput responseoutput
videos/google/veo-3.1videorequestinput responseoutput
videos/google/veo-3.1-fastvideorequestinput responseoutput
videos/google/veo-3.1-litevideorequestinput responseoutput
videos/kwaivgi/kling-v3.0-provideorequestinput responseoutput
videos/kwaivgi/kling-v3.0-stdvideorequestinput responseoutput
videos/kwaivgi/kling-video-o1videorequestinput responseoutput
videos/minimax/hailuo-2.3videorequestinput responseoutput
videos/openai/sora-2-provideorequestinput responseoutput
videos/x-ai/grok-imagine-videovideorequestinput responseoutput
videos/x-ai/grok-imagine-video-1.5videorequestinput responseoutput

Use it

shell
$ curl https://modelschemas.com/v1/schemas/openrouter/audio/audio%2Fspeech # request schema
$ curl -X POST https://modelschemas.com/v1/validate -d '{"provider":"openrouter","endpointId":"audio/speech","payload":{…}}'