Cline vs Open Code
Updated April 29, 2026
Overview
Cline is the OG open-source autonomous coding agent for VS Code with 5M+ installs. It creates and edits files, runs terminal commands, controls the browser, and supports MCP — all step-by-step with your permission. Free OSS extension; pay only for AI inference. Teams plan: $20/user/mo (first 10 seats free).
OpenCode is an open-source AI coding agent built for the terminal by Anomaly. It connects to 75+ LLM providers via Models.dev, supports parallel agent sessions on the same project, and has a privacy-first design — no code or context data is ever stored. Available as a TUI, IDE extensions, and a beta desktop app for macOS, Windows, and Linux.
Key features
Core capabilities each platform advertises.
- Step-by-step permission gating for every file edit, command, and browser action
- Model Context Protocol (MCP) support for agent-extensible tools
- Works with any LLM — Claude, OpenAI, Google, local
- Browser control and full terminal integration
- Most-installed open-source coding agent on VS Code (5M+)
- Privacy-first — zero retention of code, prompts, or context data
- 75+ LLM providers via Models.dev (Claude, GPT, Gemini, GitHub Copilot, ChatGPT Plus/Pro, local)
- Multi-session capability — run planning + build agents in parallel on the same repo
- LSP-enabled code understanding across languages
- Shareable session links for debugging and team review
Strengths and tradeoffs
What each tool does well, and the limitations to keep in mind.
Pros
- OG agentic coding agent — battle-tested with 5M+ installs
- Step-by-step permissions keep humans in the loop
- Pairs especially well with Claude Sonnet's tool use
- Open-source under MIT — no lock-in
- Strong community + active fork ecosystem (Kilo, Roo)
Cons
- VS Code only (JetBrains arrives with Teams plan)
- Pay-per-token costs add up for heavy agentic workloads
- Newer forks (Kilo, Roo) ship features faster
- Permission prompting can feel slow on long tasks
Pros
- Open-source under MIT — 147K+ GitHub stars, no vendor lock-in
- Privacy-first design with zero data retention
- 75+ providers including local, GitHub Copilot, and ChatGPT Plus/Pro accounts
- Multi-session parallel agents (build + plan modes)
- Free with optional Zen service for optimized models
Cons
- Terminal-first — less polished than IDE-native agents like Cursor
- Desktop app still in beta on macOS/Windows/Linux
- Steeper learning curve than minimalist tools like Claude Code
- Provider availability depends on third-party API access (e.g., Anthropic OAuth restrictions)
What people are saying
It's like having a senior dev who actually reads and understands your entire codebase before making suggestions.
Read full reviewIt 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 reviewCline or Open Code — which should you choose?
Choose Cline if you wantChoose if you want
- Autonomous multi-file feature implementation in VS Code
- Agent-driven refactors with reviewable per-step permission
- Terminal automation under agent control
- BYO model coding workflows (Claude, GPT, local)
- Browser-based testing and debugging from the agent
Choose Open Code if you wantChoose if you want
- Terminal-first AI pair programming for keyboard-driven developers
- Privacy-sensitive or air-gapped engineering environments
- Parallel agent workflows (planner + builder) on the same codebase
- BYOK across many providers without changing tools
- Debugging with shareable session traces for team review
Compare Cline and Open Code 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 500+ models through one gateway.