Step 3.5 Flash
Step 3.5 Flash is StepFun's language model with a 262K context window and up to 66K output tokens, starting at $0.100 / 1M input and $0.300 / 1M output. StepFun's open-source sparse Mixture-of-Experts LLM activating 11B of 196B parameters per token, designed for efficient high-capability inference.
StepFun's language model with a 262K context window and up to 66K output tokens, starting at $0.100 / 1M input and $0.300 / 1M output. StepFun's open-source sparse Mixture-of-Experts LLM activating 11B of 196B parameters per token, designed for efficient high-capability inference.37.8#31 |
31.6#42 |
0.8#31 |
0.2#25 |
0.6#29 |
0.81s#221 |
0.4#55 |
0.4#85 |
0.3#43 |
0.9#24 |
167.3#29 |
Capabilities
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Output1/5
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Capabilities1/13
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Pricing by Provider
| Provider | Standard | |
|---|---|---|
| Input $ / 1M | Output $ / 1M | |
 OpenRouter | $0.100 | $0.300 |
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