GET

/v1/models/opencode-go/step-5-preview-free

provider opencode-gostatus activefirst seen Sep 16, 2026last seen 28d agodeprecated Oct 15, 2026
rawIdstep-5-preview-free
displayNameStep 5 Preview Free
idopencode-go-step-5-preview-free
activitychat
schemaEndpointIdv1/chat/completions
input · output
releasedAt1789516800 — Sep 16, 2026
firstSeenAt1789516800 — Sep 16, 2026
lastSeenAt1792100980 — 28d ago
pricingnot published by this provider’s list endpoint
contextWindow1000000
maxOutput65536
modalities{"input":["text","image","video"],"output":["text"]}
capabilities{"tools":true,"reasoning":true,"structured_outputs":true,"vision":true}
openWeightsfalse
requestMap{"thinking":null,"maxTokensField":null,"developerRole":null,"replayReasoningContent":true,"store":null,"strictTools":null,"sessionAffinity":null,"cacheControl":null,"toolStream":null,"reasoningEffort":null}
providerMetadata{"attachment":true,"canonical_model_id":"stepfun/step-5-preview","cost":{"cache_read":0,"input":0,"output":0},"description":"StepFun's next-generation flagship base model for coding and professional knowledge work, with native text, image, and video input and a 1M-token context window","id":"step-5-preview-free","interleaved":{"field":"reasoning_content"},"last_updated":"2026-09-20","limit":{"context":1000000,"input":1000000,"output":65536},"modalities":{"input":["text","image","video"],"output":["text"]},"name":"Step 5 Preview Free","open_weights":false,"reasoning":true,"reasoning_options":[{"type":"effort","values":["low","medium","high"]}],"release_date":"2026-09-16","structured_output":true,"tool_call":true}
knowledgeCutoff · weightsUrlnot published by this provider’s list endpoint

Endpoints & schemas

GET /v1/schemas/opencode-go →
endpointactivity
v1/chat/completions
input · output
chat

endpoints matching this model — the provider has more, see /v1/schemas/opencode-go

Sources

fieldrecorded source
contextWindowhttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.limit.context

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
maxOutputhttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.limit.output

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
modalitieshttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.modalities

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
reasoninghttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.reasoning_options

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
openWeightshttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.open_weights

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
capabilities.toolshttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.tool_call

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
capabilities.reasoninghttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.reasoning

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
capabilities.structured_outputshttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.structured_output

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
capabilities.visionhttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.modalities.input

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
requestMaphttps://models.dev/api.json

listing

opencode-go.models.step-5-preview-free.interleaved.field

Source trace
b965af8bd18fdb5da1c7e56f77648b7a5e36c6185b19da57f85acc39f698150f
schemaEndpointIdhttps://opencode.ai/docs/go

docs-derived

Endpoints

requiredRequestHeadershttps://opencode.ai/docs/console/go/

docs-derived

Where can I use it?

pricinghttps://opencode.ai/docs/go

Value unknown (null); not published in the checked source · checked 2026-10-09.

cacheReadhttps://opencode.ai/docs/go

Value unknown (null); not published in the checked source · checked 2026-10-09.

activitySource unknown — no source URL recorded.

Use it

shell
$ curl https://modelschemas.com/v1/schemas/opencode-go/chat/v1/chat/completions # request schema
$ curl -X POST https://modelschemas.com/v1/validate -d '{"provider":"opencode-go","endpointId":"v1/chat/completions","payload":{…}}'
$ curl -X POST https://modelschemas.com/v1/estimate -d '{"provider":"opencode-go","model":"step-5-preview-free","usage":{"input_tokens":1200,"output_tokens":400}}'