OpenRouter: Step 3.7 Flash (OpenRouter)

Name: Step 3.7 Flash (OpenRouter) API
Brand: Stepfun

stable

Step 3.7 Flash (OpenRouter) is available through Everstack's OpenAI-compatible gateway with routing, fallback, retries, and observability.

stepfun-step-3.7-flashstepfun/step-3.7-flashreleased May 29, 2026

Provider Quick start

Context

262.1K

tokens

Max output

230.4K

tokens

Input

$0.20

per 1M

Output

$1.15

per 1M

Activity

Daily period usage

Aggregated managed Everstack traffic. Buckets below 5 tenants or 100 requests are withheld.

Providers

ProviderContextInput /MOutput /M

Pricing

Item	Price	Unit
Input	$0.20	per 1M tokens
Output	$1.15	per 1M tokens
Cache read	$0.040	per 1M tokens

Performance

Reliability

Compare

Compare usage and performance

Place this model beside up to three other catalog models.

Capabilities

Modalities

Input

Output

Details

Model ID: stepfun-step-3.7-flash
Family: stepfun/step-3.7-flash
Status: stable
Knowledge: Mar 1, 2026
Released: May 29, 2026

Gateway Config

API: 2024-01-01
Auth: OPENROUTER_API_KEY
Discovery: dynamic
Provider type: meta

Quick Start

index.ts

import Everstack from "@everstack/node";const client = new Everstack({  apiKey: process.env.EVERSTACK_API_KEY!,  baseUrl: "https://{instance}.{region}.everstack.ai",});const completion = await client.chat.completions.create({  model: "@openrouter/stepfun-step-3.7-flash",  messages: [{ role: "user", content: "Explain vector cache routing." }],});console.log(completion.choices[0]?.message?.content);

Endpoint

Base URL

https://openrouter.ai/api/v1

Chat completions

https://openrouter.ai/api/v1/chat/completions

Model

stepfun-step-3.7-flash

Auth env

OPENROUTER_API_KEY

Step 3.7 Flash (OpenRouter) FAQ

How much does the Step 3.7 Flash (OpenRouter) API cost?

Through OpenRouter, Step 3.7 Flash (OpenRouter) costs $0.20 per 1M input tokens and $1.15 per 1M output tokens.

What is the context window of Step 3.7 Flash (OpenRouter)?

Step 3.7 Flash (OpenRouter) accepts up to 262.1K tokens of context and returns up to 230.4K output tokens on OpenRouter.

Which providers offer Step 3.7 Flash (OpenRouter)?

Step 3.7 Flash (OpenRouter) is available from NVIDIA NIM, Hugging Face and OpenRouter. Everstack can route between them with automatic fallback when one is unavailable.

What can Step 3.7 Flash (OpenRouter) do?

Step 3.7 Flash (OpenRouter) supports chat, function calling, image input and reasoning. It accepts text, image and video input.

How do I call Step 3.7 Flash (OpenRouter) through Everstack?

Point any OpenAI-compatible SDK at your Everstack gateway and set the model to @openrouter/stepfun-step-3.7-flash. Everstack adds retries, provider fallback, caching, per-tenant budgets and OpenTelemetry traces for every request.