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Step 3.7 Flash

Verified

Multimodal model for long-context text, image, and video tasks.

StepfunMultimodalClosed
Model page Updated 2026-06-14

About Step 3.7 Flash

The model is built to accept combined text, image, and video data in a single extended context. Its 256000-token window supports retention of information across lengthy multimodal sequences. This architecture suits scenarios where multiple data types must be analyzed together.

Strengths center on unified handling of visual and textual content without requiring open weights. Typical usage includes video understanding, document analysis with embedded media, and interactive sessions that reference prior multimodal inputs over long ranges.

Capabilities

Multimodal understanding of text, images, and video
Long-context processing
Vision-language reasoning
Video content analysis
Text generation and comprehension

Best for

Long Video Content Analysis

The model processes extended video inputs for detailed content analysis and summarization, leveraging its 256000-token context to maintain coherence across lengthy footage.

Vision-Language Reasoning Tasks

It excels at interpreting combined text and image data, supporting complex reasoning scenarios such as diagram explanation or visual question answering.

Multimodal Long-Context Workflows

Users can feed large collections of documents, images, and video clips for unified text generation and comprehension without losing earlier context.

Strengths & limitations

Strengths

  • +Large 256k token context window
  • +Native support for video input
  • +Multimodal integration in one model

Limitations

  • Flash variant may prioritize speed over maximum depth
  • Performance characteristics not detailed beyond specs

Where to access Step 3.7 Flash

Frequently asked questions

The model provides a context window of 256000 tokens.

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