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Select any two models. Input, output, cached, and context rarely move together — the cheaper model on one line isn't always the cheaper one on the next.
Description
Step 3.7 Flash is a sparse Mixture of Experts model from StepFun that activates a subset of its parameters per token, designed for fast inference across a 256K token context.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.2/$1.15
$5.00/$30.00
Input /1M
$0.2
$5.00
Output /1M
$1.15
$30.00
Cached in /1M
$0.04
$0.5
Context
256K
1M
Δ input since launch
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—
Δ output since launch
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Released
May 2026
Apr 2026
Status
—
—
Provider
S
StepFun
OpenAI