per 1M tokens
Step 5 Preview
novita/stepfun/step-5-preview
Step 5 Preview is StepFun's flagship model for coding, software engineering, and professional knowledge work. Its sparse MoE architecture uses 600B total and 27B active parameters, with a 1M-token context window and up to 64K output tokens. It accepts text, images, and video and supports tool calling, structured JSON output, three reasoning effort levels, streaming, and prompt caching.
Price
per 1M tokens
Providers
Each row is one seller. Prices are the published rate from that source. A dash means that source did not publish the amount. Sorted by a 3:1 blend of input and output.
No provider prices yet.
Monthly bill
Token models use the token counts. Image, video, and audio models use units times the flat rate.
$3.70 at list price for this workload
Cache
per 1M tokens
Every rate
| Unit | Input | Output | Flat | Confidence |
|---|---|---|---|---|
| token | $1/1M | $2.7/1M | Not published— | official |
Price history
input or flat output
Daily snapshots
| UTC date | Unit | Input | Output | Flat |
|---|---|---|---|---|
| 2026-10-13 | token | $1 | $2.7 | Not published— |
| 2026-10-14 | token | $1 | $2.7 | Not published— |
| 2026-10-15 | token | $1 | $2.7 | Not published— |
| 2026-10-16 | token | $1 | $2.7 | Not published— |
| 2026-10-17 | token | $1 | $2.7 | Not published— |
| 2026-10-18 | token | $1 | $2.7 | Not published— |
| 2026-10-19 | token | $1 | $2.7 | Not published— |
| 2026-10-20 | token | $1 | $2.7 | Not published— |
| 2026-10-21 | token | $1 | $2.7 | Not published— |
| 2026-10-22 | token | $1 | $2.7 | Not published— |
| 2026-10-23 | token | $1 | $2.7 | Not published— |
| 2026-10-24 | token | $1 | $2.7 | Not published— |
| 2026-10-25 | token | $1 | $2.7 | Not published— |
| 2026-10-26 | token | $1 | $2.7 | Not published— |
| 2026-10-27 | token | $1 | $2.7 | Not published— |
| 2026-10-28 | token | $1 | $2.7 | Not published— |
| 2026-10-29 | token | $1 | $2.7 | Not published— |
| 2026-10-30 | token | $1 | $2.7 | Not published— |
Alternatives
Call this model
OpenRouter id novita/stepfun/step-5-preview. InferenceList does not send the request.
curl
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"novita/stepfun/step-5-preview","messages":[{"role":"user","content":"Hello"}]}'
JavaScript
await fetch("https://openrouter.ai/api/v1/chat/completions", {
method: "POST",
headers: {
Authorization: "Bearer " + process.env.OPENROUTER_API_KEY,
"Content-Type": "application/json",
},
body: JSON.stringify({
model: "novita/stepfun/step-5-preview",
messages: [{ role: "user", content: "Hello" }],
}),
});
Python
import os, json, urllib.request
req = urllib.request.Request(
"https://openrouter.ai/api/v1/chat/completions",
data=json.dumps({"model": "novita/stepfun/step-5-preview", "messages": [{"role": "user", "content": "Hello"}]}).encode(),
headers={"Authorization": "Bearer " + os.environ["OPENROUTER_API_KEY"], "Content-Type": "application/json"},
)
print(urllib.request.urlopen(req).read().decode())