GitHub - GetStream/Vision-Agents: Open Vision Agents by Stream. Build voice and vision agents quickly with any model or video provider. Uses Stream's edge network for ultra-low latency.

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VisionAgents

build PyPI version PyPI - Python Version License Discord X (Twitter)

Multi-modal AI agents that watch, listen, and understand video.

Vision Agents give you the building blocks to create intelligent, low-latency video experiences powered by your models, your infrastructure, and your use cases.

Key Highlights

  • Video AI: Built for real-time video AI. Combine YOLO, Roboflow, and others with Gemini/OpenAI in real-time.
  • Low Latency: Join quickly (500ms) and maintain audio/video latency under 30ms using Stream's edge network.
  • Open: Built by Stream, but works with any video edge network.
  • Native APIs: Native SDK methods from OpenAI (create response), Gemini (generate), and Claude ( create message) — always access the latest LLM capabilities.
  • SDKs: SDKs for React, Android, iOS, Flutter, React Native, and Unity, powered by Stream's ultra-low-latency network.

Getting Started

Step 1: Install via uv

uv add vision-agents

Step 2: (Optional) Install with extra integrations

uv add "vision-agents[getstream, openai, elevenlabs, deepgram]"

Step 3: Obtain your Stream API credentials

Get a free API key from Stream. Developers receive 333,000 participant minutes per month, plus extra credits via the Maker Program.

Follow the quickstart guide to build your first agent.

See It In Action

golf_web_export.mp4

This example shows you how to build golf coaching AI with YOLO and Gemini Live. Combining a fast object detection model (like YOLO) with a full realtime AI is useful for many different video AI use cases. For example: Drone fire detection, sports/video game coaching, physical therapy, workout coaching, just dance style games etc.

# partial example, full example: examples/02_golf_coach_example/golf_coach_example.py
agent = Agent(
    edge=getstream.Edge(),
    agent_user=agent_user,
    instructions="Read @golf_coach.md",
    llm=gemini.Realtime(fps=10),
    processors=[ultralytics.YOLOPoseProcessor(model_path="yolo11n-pose.pt", device="cuda")],
)

Features

Feature Description
Real-time WebRTC Stream video directly to model providers for instant visual understanding.
Video Processing Pluggable processor pipeline for YOLO, Roboflow, or custom PyTorch/ONNX models before/after LLM calls.
Turn Detection Natural conversation flow with VAD, diarization, and smart turn-taking.
Tool Calling & MCP Execute code and APIs mid-conversation — Linear issues, weather, telephony, or any MCP server.
Phone Integration Inbound and outbound voice calls via Twilio with bidirectional audio streaming.
RAG Retrieval-augmented generation with TurboPuffer vector search or Gemini FileSearch.
Memory Agents recall context across turns and sessions via Stream Chat.
Text Back-channel Message the agent silently during a call — coaching overlays, silent instructions, etc.
Production Ready Built-in HTTP server, Prometheus metrics, horizontal scaling, and Kubernetes deployment.

Out-of-the-Box Integrations

LLMs: OpenAI · Gemini · xAI · OpenRouter · Hugging Face · Kimi AI

Realtime: OpenAI Realtime · Gemini Live · AWS Nova Sonic · Qwen · Inworld

STT: Deepgram · AssemblyAI · Fast-Whisper · Fish Audio · Wizper · Mistral Voxtral

TTS: ElevenLabs · Cartesia · Deepgram · AWS Polly · Pocket · Kokoro · Inworld · Fish Audio

Vision: Ultralytics · Roboflow · Moondream · NVIDIA Cosmos · Decart

Avatars: LemonSlice

Turn Detection: Vogent · Smart Turn

Other: Twilio · TurboPuffer

Documentation

Check out the full docs at VisionAgents.ai.

Quickstart: Voice AI · Video AI

Guides: MCP & Function Calling · Video Processors · Phone Calling · RAG · Testing

Production: HTTP Server · Deployment · Kubernetes · Horizontal Scaling · Prometheus Metrics

Examples

🔮 Demo Applications

Voice Agents (Low Latency + RAG + File Search)

Build fast voice agents that can reason over knowledge, search files, and respond in real time.

• Low-latency voice interactions
• Retrieval-augmented responses
• File and knowledge search

>Source Code and tutorial

 Voice Agent Demo

Realtime Coaching and Video Understanding

Power interactive coaching flows with live pose tracking and processor pipelines for frame-by-frame understanding.

• Real-time pose tracking
• Actionable coaching feedback
• Video processor pipeline support

>Source Code and tutorial

 Realtime Coaching Demo

Video Restyling and Avatars

Use models like Decart Lucy to build virtual try-ons, stylized scenes, or give your agents a visual identity.

• Real-time video restyling
• Virtual try-on experiences
• Avatar-like visual presence

>Source Code and tutorial

 Video Restyling Demo

Custom Video Models (Roboflow, YOLO, and More)

Train and run custom computer vision models for security monitoring, moderation, and other domain-specific workflows.

• Bring your own CV models
• Real-time moderation pipelines
• Security and detection use cases

>Source Code and tutorial

 Custom Video Models Demo

Tools, MCP, and Phone Calling

Connect external APIs and services so agents can validate data and take real-world actions during live conversations.

• MCP and function calling support
• Twilio-based phone workflows
• Real-time fraud response automation

>Phone + RAG example · >Fraud workflow example

 Tools and Phone Demo

Development

See DEVELOPMENT.md

Want to add your platform or provider? See Create Your Own Plugin or reach out to nash@getstream.io.

Current Limitations

  • Video AI struggles with small text — models may hallucinate scores, signs, etc.
  • Context degrades on longer sessions (~30s+) for continuous video understanding
  • Most use cases need a mix of specialized models (YOLO, Roboflow) with larger LLMs
  • Real-time models require audio/text to trigger responses — video alone won't prompt output

Star History

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