Step 3.5 Flash 2603 by StepFun | AI model information

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Step 3.5 Flash 2603 by StepFun | AI model information

$10 off Synthetic - fastest OpenCode provider$10 off Synthetic - the fastest Kimi K2.6 and GLM 5.1 provider Discuss

Model details

Step 3.5 Flash 2603

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StepFunstep-3.5-flash-2603

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Quick Info

Provider: StepFun
Model key: step-3.5-flash-2603
Release date: Apr 2, 2026
Last updated: Apr 2, 2026

Cost

Input token cost: $0.10
Output token cost: $0.30

Limits

Input tokens: 256,000 tokens
Output tokens

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Knowledge cutoff

2025-01

Input modalities

Output modalities

Capabilities

256,000 tokens

Context window

256,000 tokens