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Stepfun

StepFun: Step 3.7 Flash

Stepfun

WhatModel Score63SituationalCompare
Input / M
Routed
Output / M
Context
Max Output
256K
Usage
#16 · 1.16%
Quality
49.8 / 100
Providers
3
Best Uptime 30m
99.44%
Latency (p50)
250 ms
Throughput
145.5 tok/s
Released
May 28, 2026
Modalities
text, image, video

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.

Capabilities

Vision
Tools
Reasoning
Streaming
JSON Mode

Host offerings · 3

Per-host pricing, uptime, latency, throughput
spread 0%
HostInput/MOutput/MContextUptime
DeepInfraCheapest
DeepInfra | stepfun/step-3.7-flash-20260528
$0.200$1.15262K99.4%
StepFunCheapest
StepFun | stepfun/step-3.7-flash-20260528
$0.200$1.15256K99.4%
NovitaCheapest
Novita | stepfun/step-3.7-flash-20260528
$0.200$1.15262K—

Benchmarks

Quality index 49.8 / 100
Artificial Analysis
intelligence index
30.9 / 100
coding index
39.6 / 100
agentic index
21.7 / 100
Design Arena
elo models website
1202.0
elo models uicomponent
1201.0
elo models codecategories
1195.0
elo models gamedev
1193.0
elo models dataviz
1191.0
elo models 3d
1175.0
elo models asciiart
1191.0
elo models svg
1108.0

Performance History

200 snapshots

Price History

Last 7 days · 0 changes
No creator-price changes in the last 7 days.
Free shows the last 7 days. Full history is a Pro feature.Get Pro

Usage (OpenRouter)

Rank #16 of the market
1.16% share

Activity Timeline

  • context changed
    Context 256000 → 262144
    27d ago

Versus

Nearest peers by price, context, and capabilities. One click to compare.
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Markdown
[![StepFun: Step 3.7 Flash WM Score](https://whatmodel.app/api/public/embed/score/2ee8f7b9-33db-4226-b0c3-0f0b943eae08)](https://whatmodel.app/models/2ee8f7b9-33db-4226-b0c3-0f0b943eae08)
HTML
<a href="https://whatmodel.app/models/2ee8f7b9-33db-4226-b0c3-0f0b943eae08"><img src="https://whatmodel.app/api/public/embed/score/2ee8f7b9-33db-4226-b0c3-0f0b943eae08" alt="StepFun: Step 3.7 Flash WM Score" height="26" /></a>
Image URL
https://whatmodel.app/api/public/embed/score/2ee8f7b9-33db-4226-b0c3-0f0b943eae08
First seen 43d ago · Last verified 4m ago