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Step 3.7 Flash

Reasoning model

Step 3.7 Flash

Release date: 2026-05-29537
Parameters
198B
Context length
256K
Chinese support
Supported
Reasoning ability

Step 3.7 Flash is an AI model published by StepFunAI, released on 2026-05-29, for Reasoning model, with 198B parameters, and 256K context length, requiring about 403 GB(BF16 Safetensors) storage, under the Apache 2.0 license.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

Step 3.7 Flash

Model basics

Reasoning traces
Supported
Thinking modes
Thinking modes not supported
Context length
256K tokens
Max output length
No data
Model type
Reasoning model
Modality (in / out)
Text, Image, Video → Text
Release date
2026-05-29
Model file size
403 GB(BF16 Safetensors)
MoE architecture
Yes
Total params / Active params
198B / 11B
Knowledge cutoff
No data
Step 3.7 Flash

Open source & experience

Step 3.7 Flash

Official resources

Step 3.7 Flash

API details

API speed
3/5
No public API pricing yet.
Step 3.7 Flash

Benchmark Results

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Step 3.7 Flash

Publisher

Step 3.7 Flash

Model Overview

Step 3.7 Flash is an AI model published by StepFunAI, released on 2026-05-29, for Reasoning model, with 198B parameters, and 256K context length, requiring about 403 GB(BF16 Safetensors) storage, under the Apache 2.0 license.

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