Step 3.5 Flash
by Hugging Face · listed Jan 2026RTW
StepFun flash lane for quick multimodal reasoning and coding assistance
Current rates USD per 1M tokens
Input$0.10
Output$0.30
Cache read—
Cache write—
Against the market
On the record
- Model id
stepfun-ai/Step-3.5-Flash- Context window
- 262K tokens
- Max output
- 256K tokens
- Input modalities
- text
- Output modalities
- text
- Reasoning
- yes
- Tool calls
- yes
- Open weights
- yes
- Knowledge cutoff
- Jan 2025
- Released
- 2026-01-29
- Last updated
- 2026-02-13
- Provider docs
- huggingface.co/docs/inference-providers
Back of the envelope
≈
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