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Qwen3-VL

Class: Qwen3VLBlockV1

Source: inference.core.workflows.core_steps.models.foundation.qwen3vl.v1.Qwen3VLBlockV1

This workflow block runs Qwen3-VL—a vision language model that accepts an image and an optional text prompt—and returns a text answer based on a conversation template.

Type identifier

Use the following identifier in step "type" field: roboflow_core/qwen3vl@v1to add the block as as step in your workflow.

Properties

Name Type Description Refs
name str Enter a unique identifier for this step.. ❌
prompt str Optional text prompt to provide additional context to Qwen3-VL. Otherwise it will just be a default one, which may affect the desired model behavior.. ❌
model_version str The Qwen3-VL model to be used for inference.. ✅
system_prompt str Optional system prompt to provide additional context to Qwen3-VL.. ❌

The Refs column marks possibility to parametrise the property with dynamic values available in workflow runtime. See Bindings for more info.

Available Connections

Compatible Blocks

Check what blocks you can connect to Qwen3-VL in version v1.

Input and Output Bindings

The available connections depend on its binding kinds. Check what binding kinds Qwen3-VL in version v1 has.

Bindings

  • input

    • images (image): The image to infer on..
    • model_version (roboflow_model_id): The Qwen3-VL model to be used for inference..

  • output

Example JSON definition of step Qwen3-VL in version v1 
{
    "name": "<your_step_name_here>",
    "type": "roboflow_core/qwen3vl@v1",
    "images": "$inputs.image",
    "prompt": "What is in this image?",
    "model_version": "qwen3vl-2b-instruct",
    "system_prompt": "You are a helpful assistant."
}