Step 3.5 Flash (Free) | Sulat AI Models

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Step 3.5 Flash (Free) | Sulat AI Models

Model details

Step 3.5 Flash (Free)

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ZenMuxstepfun/step-3.5-flash-free

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Quick Info

Provider: ZenMux
Model key: stepfun/step-3.5-flash-free
Release date: Feb 2, 2026
Last updated: Feb 2, 2026
Knowledge: 2025-01-01
Input modalities: text
Output modalities: text
Capabilities: Reasoning, Tool calling, Temp controls
Cost summary: Subscription plan pricing
Limit summary: 256,000 token context window

Cost

A provider subscription or plan supersedes token-based pricing for this model.

Limits

Output tokens: 64,000 tokens
Context window: 256,000 tokens