Stepfun
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...
Step 3.7 Flash is StepFun's latest high-efficiency multimodal Mixture-of-Experts model.
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Quality Score
1146
Arena ELO
196B
Parameters
256K
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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May 2026
Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
Step 3.7 Flash Benchmark Update
Quality: 29.7/100 | Price: $0.438/M tokens | Output: 406.199 tok/s | HumanEval: 0.4%
View sourceStep 3.7 Flash Benchmark Update
Quality: 29.7/100 | Price: $0.438/M tokens | Output: 412.004 tok/s | HumanEval: 0.4%
View sourceStep 3.7 Flash Benchmark Update
Quality: 29.7/100 | Price: $0.438/M tokens | Output: 400.997 tok/s | HumanEval: 0.4%
View sourceStep 3.7 Flash Benchmark Update
Quality: 29.7/100 | Price: $0.438/M tokens | Output: 396.805 tok/s | HumanEval: 0.4%
View sourceStep 3.7 Flash Benchmark Update
Quality: 29.7/100 | Price: $0.438/M tokens | Output: 398.147 tok/s | HumanEval: 0.4%
View sourceStep 3.7 Flash Benchmark Update
Quality: 29.7/100 | Price: $0.438/M tokens | Output: 391.291 tok/s | HumanEval: 0.4%
View source1146
ELO Score
1134 - 1158
95% Confidence
+/-12 points
3.3K
Battles
Jun 23, 2026
Last Updated