Step 3.7 Flash

StepFun · 201.4B parameters · Language models

Weights and memory

8 options
FormatFile sizeYour deviceLink
IQ3_XXS75.8 GB82.4 GB ◇Hugging Face
Q3_K_M93.8 GB99.2 GB ◇Hugging Face
Q3_K_L103 GB107 GB ◇Hugging Face
IQ4_XS105 GB110 GB ◇Hugging Face
Q4_K_S111 GB116 GB ◇Hugging Face
209 GB207 GB ◇Hugging Face
394 GB379 GB ◇Hugging Face
—403 GB387 GB ◇Hugging Face

Published by the lab. File size is what the repository lists; for original weights it is the total of the weight files, which can include more than one variant. ● memory stated by the publisher · ◇ estimate from file size, an 8K-token context and 0.5 GB for the runtime. Unknown means there is no figure to go on. Checked 2026-10-11.

Tests on this site

Not tested yet

This site has not run this model. What will be tested

Third-party scores

Measured by other sites on hosted endpoints. A quantized file you run yourself may score differently.

OpenRouter evals

data from 2026-10-10
EndpointBenchmarkScoreTasks run
stepfun/step-3.7-flash-2026052876.6% ± 0.0198
stepfun/step-3.7-flash-2026052877.3% ± 0.050

Source: OpenRouter evals (openrouter.ai) via OpenRouter (openrouter.ai/rankings). openrouter.ai

Artificial Analysis

data from 2026-10-09
EndpointIntelligenceCodingAgentic
Step 3.7 Flash19.539.6—

Source: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings). artificialanalysis.ai

Design Arena

data from 2026-10-11
EndpointCategoryWin rate
stepfun/step-3.7-flash-20260528website119944.2%
stepfun/step-3.7-flash-20260528codecategories118642.6%
stepfun/step-3.7-flash-20260528uicomponent118542.2%
stepfun/step-3.7-flash-20260528dataviz117643.0%
stepfun/step-3.7-flash-20260528gamedev116538.9%
stepfun/step-3.7-flash-20260528asciiart115844.9%
stepfun/step-3.7-flash-202605283d113240.6%
stepfun/step-3.7-flash-20260528svg108137.2%

Source: Design Arena (www.designarena.ai) via OpenRouter (openrouter.ai/rankings). designarena.ai