Step 3.7 Flashon Krater.ai
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.
Released May 28, 2026
Specifications
Step 3.7 Flash at a glance
Context
262.1K tokens
Max output
256K tokens
Input
Text, Image, Video
Output
Text
Input price
$0.20 / 1M
Output price
$1.15 / 1M
Capabilities
What it is good at
Catalog capabilities
- Accepts image input
- Generates text responses
- Supports tool calling
- Supports structured outputs
Good for
Benchmarks
Catalog data, not Krater benchmarks.
Coding index score
39.6
Agentic index score
21.7
Intelligence index score
30.9
Design Arena asciiart rank
#27
Design Arena website rank
#50
Compare
Compare Step 3.7 Flash
Step 3.7 Flash vs Step 3.5 Flash
Step 3.5 Flash is StepFun's most capable open-source foundation model.
Open comparisonStep 3.7 Flash vs Step 3.5 Flash (free)
Step 3.5 Flash is StepFun's most capable open-source foundation model.
Open comparisonStep 3.7 Flash vs Qwen3.5-Flash
The Qwen3.5 native vision-language Flash models are built on a hybrid architecture that integrates a linear attention mechanism with a sparse mixture-of-experts model, achieving higher inference efficiency.
Open comparisonFAQ
Questions about Step 3.7 Flash
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