StepFun: Step 3.5 Flash

Made by stepfun.

Input price
$0.10
per 1M tokens
Output price
$0.30
per 1M tokens
Context window
262K
tokens
Quality
1,403
#147 on LMArena
Size
—
parameters
Downloads
—
on Hugging Face, last 30 days

Can I run it locally?

We do not know the size of this model yet, so we cannot estimate the memory it needs.

Prices: OpenRouter, refreshed 8 Oct 2026. Quality: LMArena (CC BY 4.0), leaderboard of 2 Oct 2026. Model page on Hugging Face