Open Vision Agents by Stream

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

https://github.com/user-attachments/assets/d1258ac2-ca98-4019-80e4-41ec5530117e

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 or Telnyx with bidirectional audio streaming. | | RAG | Retrieval-augmented generation with TurboPuffer/Qdrant 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 · MiniMax

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 · TwelveLabs · NVIDIA · Decart

Avatars: LemonSlice

Turn Detection: Vogent · Smart Turn

Other: Twilio · Telnyx · 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 | | |:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------| | <br><h3>Voice Agents (Low Latency + RAG + File Search)</h3>Build fast voice agents that can reason over knowledge, search files, and respond in real time.<br><br>• Low-latency voice interactions<br>• Retrieval-augmented responses<br>• File and knowledge search<br><br> >Source Code and tutorial | <img src="assets/demo_gifs/cartesia.gif" width="320" alt="Voice Agent Demo"> | | <br><h3>Realtime Coaching and Video Understanding</h3>Power interactive coachin