GET

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

Accept:

provider opencodestatus activefirst seen Sep 16, 2026last seen 28d agodeprecated Oct 15, 2026

rawId	step-5-preview-free
displayName	Step 5 Preview Free
id	opencode-step-5-preview-free
activity	chat
schemaEndpointId	inference/v1/chat/completions input · output
releasedAt	1789516800 — Sep 16, 2026
firstSeenAt	1789516800 — Sep 16, 2026
lastSeenAt	1792100975 — 28d ago
pricing	not published by this provider’s list endpoint
contextWindow	1000000
maxOutput	65536
modalities	{"input":["text","image","video"],"output":["text"]}
capabilities	{"tools":true,"reasoning":true,"structured_outputs":true,"vision":true}
openWeights	false
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 · weightsUrl	not published by this provider’s list endpoint

Endpoints & schemas

GET /v1/schemas/opencode →

endpoint	activity
inference/v1/chat/completions input · output	chat

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

Sources

field	recorded source
contextWindow	https://models.dev/api.json listing opencode.models.step-5-preview-free.limit.context Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
maxOutput	https://models.dev/api.json listing opencode.models.step-5-preview-free.limit.output Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
modalities	https://models.dev/api.json listing opencode.models.step-5-preview-free.modalities Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
reasoning	https://models.dev/api.json listing opencode.models.step-5-preview-free.reasoning_options Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
openWeights	https://models.dev/api.json listing opencode.models.step-5-preview-free.open_weights Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
schemaEndpointId	https://models.dev/api.json listing opencode.npm Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
capabilities.tools	https://models.dev/api.json listing opencode.models.step-5-preview-free.tool_call Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
capabilities.reasoning	https://models.dev/api.json listing opencode.models.step-5-preview-free.reasoning Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
capabilities.structured_outputs	https://models.dev/api.json listing opencode.models.step-5-preview-free.structured_output Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
capabilities.vision	https://models.dev/api.json listing opencode.models.step-5-preview-free.modalities.input Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
requestMap	https://models.dev/api.json listing opencode.models.step-5-preview-free.interleaved.field Source trace `53b0f8141a15c31a5a966bb95e37a35e49fe6c4345a60662daf25c1c6e94f832`
activity	Source unknown — no source URL recorded.
pricing	Source unknown — no source URL recorded.

Use it

shell

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