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Model Services/StepFun/Step 3.5 Flash 2603
stepfun

Step 3.5 Flash 2603

Active

StepFun flash model for efficient multimodal reasoning, coding, and tool use

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Input, output, and cached rates with source and verification time, plus same-workload cost examples.
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Input / 1M tokens
$0.10
Output / 1M tokens
$0.30
Record updated 2026-10-10
Modality:LLM
Context:256,000 tokens
Release:Apr 2, 2026
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Pricing

Platform
Scope
Input
Output
Details
Official
Standard
$0.10
$0.30
256k context · 256k max output

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Latest changes

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⚡Step 3.5 Flash 2603 Comparisons & Scenario Guides

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❓Step 3.5 Flash 2603 Frequently Asked Questions

How much does Step 3.5 Flash 2603 cost per 1M tokens?▼

Step 3.5 Flash 2603 is priced at $0.10 per 1M input tokens and $0.30 per 1M output tokens, with cached input at $0.02/1M on official. Check provider terms before deployment.

What is the context window for Step 3.5 Flash 2603?▼

Step 3.5 Flash 2603 supports up to 256,000 tokens context with a max completion limit of 256,000 tokens.

What are cost-saving alternatives to Step 3.5 Flash 2603?▼

ModelPriceLab automatically calculates cheaper alternatives in the same model class, showing monthly spend differences and migration guides.

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