Step 3.7 Flash

step-3.7-flash by StepFun Released May 29, 2026

ReasoningFunction callingStructured outputPrompt cachingWeb searchComputer useImage inputFile inputAudio inputVideo inputEU hostingFree endpointUp to % off

Input from

$0.2 / 1M

Output from

$1.15 / 1M

Cached input from

$0.03 / 1M

Context window

262K

Endpoints

from 2 providers

Regions

Global, United States

About Step 3.7 Flash

Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.

Step 3.7 Flash is a chat model by StepFun, available on Eden AI through 2 endpoints from 2 providers, from $0.2 per million input tokens and $1.15 per million output tokens, with a context window of up to 262K tokens.

Providers and prices

2 endpoints from 2 providers, cheapest first, in USD per million tokens. Every one is called with the same Eden AI key: pin one with its endpoint ID, or let Eden AI route for you. .

Endpoint

Region

Context

Input / 1M

Output / 1M

Cached / 1M

Supports

FlexAIOfficial−%flexai/Step-3.7-Flash

Global

262K

$0.2$0.2

$1.15

$0.03

ReasoningToolsJSONCacheVisionWeb

DeepInfra (United States)Official−%deepinfra/stepfun-ai/Step-3.7-Flash

United States

262K

$0.2$0.2

$1.15

$0.04

ReasoningToolsJSONCacheVisionWeb

Performance

Measured on real Eden AI traffic over the last 30 days. Endpoints with too little traffic are not shown.

Fastest first token

Lowest latency

69.47 s

FlexAI

Highest throughput

116.27 tok/s

FlexAI

Best availability

100%

FlexAI

Endpoint

First token

Latency p50

Latency p95

Throughput

Availability

Cache hits

Tool errors

JSON errors

FlexAI

69.47 s

70.56 s

116.27 tok/s

100%

63%

DeepInfra (United States)

82.15 s

232.22 s

29.79 tok/s

100%

72.71%

Estimate your monthly cost

Enter your expected volume to compare every endpoint at once.

Call Step 3.7 Flash with Eden AI

Use the model ID to let Eden AI pick an endpoint, or an endpoint ID from the table above to pin one.

import requests

response = requests.post(
    "https://api.edenai.run/v3/chat/completions",
    headers={"Authorization": "Bearer YOUR_EDENAI_API_KEY"},
    json={
        "model": "",
        "messages": [{"role": "user", "content": "Hello!"}],
    },
)
print(response.json())

curl https://api.edenai.run/v3/chat/completions \
  -H "Authorization: Bearer YOUR_EDENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "", "messages": [{"role": "user", "content": "Hello!"}]}'

const response = await fetch("https://api.edenai.run/v3/chat/completions", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_EDENAI_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    model: "",
    messages: [{ role: "user", content: "Hello!" }],
  }),
});
console.log(await response.json());

Questions about Step 3.7 Flash

How much does Step 3.7 Flash cost?

On Eden AI, prices for this model start at $0.2 per million input tokens and $1.15 per million output tokens. Prices differ by endpoint; the providers table lists each one. .

What is the context window of Step 3.7 Flash?

Up to 262K tokens, depending on the endpoint.

Which providers serve Step 3.7 Flash?

2 endpoints from 2 providers, available in: Global, United States. All of them are called with the same Eden AI API key.

Can I run Step 3.7 Flash in the EU?

Yes. At least one endpoint is hosted in Europe; pin it with its endpoint ID from the providers table to keep requests in the EU.

How fast is Step 3.7 Flash?

Over the last 30 days, the fastest first token was s () and the highest throughput was 116.27 tokens per second (FlexAI).

About Step 3.7 Flash

Providers and prices

Performance

Estimate your monthly cost

Call Step 3.7 Flash with Eden AI

Questions about Step 3.7 Flash

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