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Step 3.7 Flash

Tools
stepfun-ai/step-3.7-flash

128K context · Jun 2026 · 4 upstreams

A 1T parameter multimodal Mixture-of-Experts model optimized for long-horizon coding, agentic tool use, and image/video understanding. Served via NVIDIA NIM with fast inference and structured output support.

Bring your own keyAnyRouter has no platform route for Step 3.7 Flash. Requests use your key and bill your provider account. AnyRouter adds no fee.
context
128K
input / 1M (list)
$0.20
output / 1M (list)
$1.15
routes
4
speed, 24h
—

Upstreams

4
  1. 1Nous ResearchYour key · not addedyour planTPS —TTFT ——
  2. 2StepFunYour key · not addedyour planTPS —TTFT ——
  3. 3StepFunYour key · not addedyour planTPS —TTFT ——
  4. 4CommandCodeYour key · not addedyour planTPS —TTFT ——

Try it

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Details

Owner
StepFun AI
Kind
Vision
Released
Jun 2026
Context
128K
Data policy
Provider retention
Endpoint
/api/v1/chat/completions

Quick start

curl https://anyrouter.dev/api/v1/chat/completions \
  -H "Authorization: Bearer $ANYROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "stepfun-ai/step-3.7-flash",
  "messages": [
    {
      "role": "user",
      "content": "Say hi in 3 words."
    }
  ]
}'