Step 3.5 Flash API Pricing 2026
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Overview
Step 3.5 Flash was released on January 29, 2026. Pricing starts at $0.100 per million input tokens and $0.300 per million output tokens. The model supports a context window of up to 256K tokens. API access is available through Stepfun-ai.
Pricing Comparison
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Current Pricing (per 1M tokens)
1 models
Provider | Model | Input $/M | Output $/M | Coding | MMLU | GPQA | Context | Actions |
|---|---|---|---|---|---|---|---|---|
$0.100 | $0.300 | — | — | 83.1 | 256,000 |
* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.
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