Step 3.7 Flash

AI model Released May 29, 2026

Context window: 256,000 tokens
Maximum output: 256,000 tokens
Open weights: Yes

No matched benchmark results are available for this entry yet.

Run it locally

Inference · memory estimate

Step 3.7 Flash

375.1 GiB checkpoint tensor payload · 201.37 B stored tensor elements · BF16/F32

Stored tensors can include buffers and repeated shared weights. A verified unique parameter count is unavailable. Checkpoint size is not the memory required to run the model.

API cost

USD / month

Input tokens / monthOutput tokens / month

Standard text-token estimate. Excludes taxes, caching, batch discounts, reasoning and multimodal surcharges. Provider limits and regional availability may differ.

Step 3.7 Flash

Provider offer

Step 3.7 Flash / Pricing tiers 1

Provider / scope	Rate	Currency	Amount / unit
StepFunstep-3.7-flashStandard	Cached input	CNY	0.27 / 1M tokens
	Input	CNY	1.35 / 1M tokens
	Output	CNY	8.1 / 1M tokens

Capabilities

Context window: 256,000 tokens
Maximum output: 256,000 tokens
Reasoning: Yes
Tool calling: Yes
Open weights: Yes
Knowledge cutoff: 2026-03-01
Model license: apache-2.0
Checkpoint tensor payload: 375.07 GiB

Input modalities

text
image
video

Output modalities

text

Processing & platform

Architecture: step3p7