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StepFun: Step 3.7 Flash

StepFun·Released 2026-05-28
256K ctxMultimodal

About

Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model. It pairs a 196B-parameter language backbone with a vision encoder for native image and video understanding, activating roughly 11B parameters...

Pricing

Input

$0.20

per 1M tokens

Output

$1.15

per 1M tokens

Blended

$0.44

per 1M tokens

Cheaper than 54% of models. Median price is $0.54/1M tokens.

Cost Calculator

Tokens per day1M
100K100M

Daily

$0.44

Monthly

$13.13

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Performance

Context Window

256K

tokens

Larger than 59% of models

Max Output

256K

tokens

100% of context

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