Step 3.7 Flash

DeepInfra

StepFun's efficient Step 3.7 Flash reasoning and coding model for fast, high-volume agents.

Modalities
IntextOuttext
Input / output
$0.20 / $1.15USD per 1M tokens
Context
256K
Providers
2 live
Released
May 28, 2026

Chat with Step 3.7 Flash free →

Playground

Preparing playground

Providers

fallback——
emergency12.1s100%

API

POST/api/v1/chat/completionsOpenAI-compatible
step-3.7-flash
curl https://www.ninjachat.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $NINJACHAT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "step-3.7-flash",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
messagestemperaturemax_completion_tokenstop_pstopfrequency_penaltypresence_penaltyseedstreamuserroutingtoolstool_choiceresponse_formatreasoningreasoning_effort

Pricing

Input
$0.20/M tokens
Cached input
$0.02/M tokens
Output
$1.15/M tokens

Published USD rates. Actual cost depends on input, output, cache usage and request options.