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Step 3.5 Flash

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stepfun:step-3.5-flash

Added January 29, 2026

Usage

import OpenAI from "openai";

const client = new OpenAI({
    baseURL: "https://api.tributary.cc/openai/v1",
    apiKey: "<TRIBUTARY_API_KEY>",
});

const completion = await client.chat.completions.create({
    model: "stepfun:step-3.5-flash",
    messages: [
        { role: "user", content: "Hello!" }
    ],
});

console.log(completion.choices[0].message.content);

Providers

Provider Model Context Output Input $/M Output $/M
Openrouter stepfun/step-3.5-flash:free 256K 256K Free Free
DeepInfra stepfun-ai/Step-3.5-Flash 262K 262K $0.10 $0.30
Openrouter stepfun/step-3.5-flash 256K 256K $0.11 $0.32
Context/output in tokens. Prices in USD per 1M tokens.