Stream vs Terminal Use (2026)
Updated March 27, 2026
Overview
Stream builds Vision Agents, an open-source Python framework for real-time voice and video AI agents, on top of its chat, video, and feeds APIs.
Vercel for background agents — hosting and deployment platform for long-running AI agents with sandboxed compute, scheduling, and message streaming.
Key features
Core capabilities each platform advertises.
- Open-source Python framework for voice and video agents
- Real-time WebRTC streaming of audio and video to models
- Pluggable vision pipelines (YOLO, Roboflow, Moondream)
- Turn detection, interruptions, and speaker diarization
- Tool calling and MCP support
- Phone calls through Twilio or Telnyx
- Works with any WebRTC network, not only Stream's edge
- Agent hosting & deployment
- Sandboxed compute
- Scheduling
- Message streaming
- Long-running agent support
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Open source and works with any video edge network
- Wide integration list across LLMs, speech, and vision models
- Stream's edge includes 333k free participant-minutes per month for developers
Cons
- Built for real-time voice and video, not general text-based agents
- Python only
- Still pre-1.0 (v0.5), so APIs may change
Pros
- Massive M funding provides significant runway compared to competitors in the space
- All three founders have directly relevant Palantir experience building agent infrastructure at enterprise scale
- Framework-agnostic design with Claude SDK, Codex SDK, and Vercel AI SDK adapters avoids vendor lock-in
- Filesystem-as-primitive architecture is a genuinely novel approach solving real stateful agent problems
- Strong developer experience with CLI-first design, git-native versioning, and markdown scenario testing
Cons
- No public pricing creates uncertainty for teams evaluating the platform
- Still missing key features including preview URLs, Docker-in-Docker, and multi-agent communication protocols
- Competes with established sandbox providers like Fly.io and E2B that already have large user bases
- The "Vercel for X" positioning is well-worn — execution will matter more than the analogy
Stream or Terminal Use — which should you choose?
Choose Stream if you wantChoose if you want
- Real-time voice agents and phone agents
- Video understanding, such as coaching or sports commentary
- Avatars and video restyling
- Agents that join live video calls
Choose Terminal Use if you wantChoose if you want
- Agent deployment
- Background agent hosting
- Scheduled agent tasks
- Production agent infrastructure
Compare Stream and Terminal Use on your own traffic
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 1,000+ models through one gateway.
Try Respan freeFrequently Asked Questions
An agent framework provides the building blocks for creating AI agents that can autonomously plan, use tools, and complete multi-step tasks. Instead of building tool use, memory, and orchestration from scratch, you get pre-built components that handle the common patterns.
For simple single-tool agents, raw API calls work fine. Frameworks become valuable when you need multi-step planning, tool orchestration, error recovery, memory, or multi-agent coordination. They save significant development time for complex agent architectures.
LangChain and LlamaIndex are the most mature with the largest ecosystems. CrewAI is best for multi-agent workflows. Vercel AI SDK is ideal for TypeScript/Next.js applications. Evaluate based on your language preference, use case complexity, and integration needs.
