OpenCode vs Sweep (2026)
Updated April 29, 2026
Overview
OpenCode is an open-source AI coding agent for the terminal, IDE, and desktop with 75+ LLM providers. Compare its Zen and Go pricing, pros, and cons.
Sweep is an AI junior developer that handles GitHub issues by creating pull requests automatically.
Key features
Core capabilities each platform advertises.
- Terminal UI, desktop app, and IDE extensions
- 75+ LLM providers via Models.dev, including local models
- Sign in with GitHub Copilot or ChatGPT Plus/Pro
- LSP-enabled code understanding
- Multi-session agents on the same project
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- Free and open source under MIT
- Doesn't store code or context data
- 75+ providers, including local models and existing Copilot or ChatGPT subscriptions
- Same agent across terminal, desktop, and five IDEs
Cons
- Zen data retention varies by provider, and OpenAI keeps requests for 30 days
- Zen credit purchases carry card fees of 4.4% + $0.30
- Go plans cap usage in 5-hour, weekly, and monthly windows
Pros
- Production-ready platform
- Good performance
- Active development
- Strong features
Cons
- Enterprise pricing varies
- Setup complexity
- Learning curve required
What people are saying
It was the first time I felt like I could write up a large prompt, walk away from my laptop, and come back to a lot of work having been done.
Read full reviewOpenCode or Sweep — which should you choose?
Choose OpenCode if you wantChoose if you want
- Terminal-first AI pair programming
- Privacy-sensitive environments using local models
- Parallel agent sessions on one codebase
- BYOK across providers without switching tools
Choose Sweep if you wantChoose if you want
Compare OpenCode and Sweep 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.
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