Compare Cline and Open Code side by side. Both are tools in the Coding Agents category.
Updated April 29, 2026
Choose Cline if oG agentic coding agent — battle-tested with 5M+ installs.
Choose Open Code if open-source under MIT — 147K+ GitHub stars, no vendor lock-in.
Cline and OpenCode are both autonomous open-source coding agents. The functional gap is smaller than between Cline and Continue, so the choice usually comes down to surface (editor vs terminal) and project velocity.
Cline is the older project and the one with the larger install base (~5M VS Code installs). It lives in your editor sidebar with rich UI for diffs, file ops, terminal access, and approval flows. Strong fit when you want the agent to be a visible passenger in your IDE: you see what it is doing, you click to approve risky steps, you watch the diffs land in real time. The IDE surface is the strength and limit. Outside VS Code you are not getting Cline.
OpenCode is terminal-first, from Anomaly. No editor plugin. You run it from the command line, it operates on the repo in front of you. The same autonomous behavior (reads files, writes files, runs commands) without the IDE overlay. If your workflow lives in the terminal, OpenCode is closer to how you already work. It is also easier to embed in automation, run over SSH, or invoke from CI than an editor-bound agent.
Where the trade-off bites: Cline is the right pick if you want maximum visibility while the agent runs and you want approval gates on every meaningful step. OpenCode is the right pick if you prefer to invoke an agent like a CLI tool and review the resulting diff after, or if you want the same agent available across editors and remote sessions.
Both work with Respan. OpenCode has first-party Respan tracing as part of the trace CLI coding agents cookbook. Cline routes cleanly through the Respan gateway when you want unified provider keys, cost tracking, and switching across Claude, GPT-5, and self-hosted models. See the proxy coding agents cookbook for the gateway setup.
Want to 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 250+ models through one gateway. Free tier covers 10K traces per month. Setup in 5 minutes, no credit card.
| Category | Coding Agents | Coding Agents |
| Pricing | Free OSS + Teams from $20/user/mo (first 10 seats free) | Free open-source (MIT) + optional paid Zen service |
| Best For | Individual developers and teams who want a battle-tested, agentic coding assistant inside VS Code with full model freedom | Terminal-first developers who want a privacy-respecting, provider-agnostic coding agent with multi-session support |
| Website | cline.bot | github.com |
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Curated quotes from Hacker News, Reddit, Product Hunt, and review blogs. Dates shown so you can judge whether early criticism still applies.
“It's like having a senior dev who actually reads and understands your entire codebase before making suggestions.”
“Cline is the OG with 5 million installs — still the best open-source autonomous agent in VS Code.”
“Step-by-step permission gating is the right safety model — but on long tasks the constant prompting slows you down vs more autonomous agents.”
“Kilo Code and Roo Code (both Cline forks) ship features faster — Cline still wins on stability and ecosystem.”
“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.”
“Model agnostic — I can use it with my existing Copilot subscription and select Claude Sonnet 4 freely.”
“The screen is much more 'managed', with windows, a status bar, more colors, etc.”
“Why is the new version so laggy? A task took almost two hours that finished in under 10 minutes when reverting to v1.2.10.”
“After Anthropic blocked OpenCode from Claude consumer OAuth tokens, OpenCode removed Claude Pro/Max support — broke workflows for Max subscribers.”
Key criteria to evaluate when comparing Coding Agents solutions:
Cline is the most-installed open-source autonomous coding agent on the VS Code marketplace, with 5M+ installs. As a VS Code extension it can autonomously create and edit files, run terminal commands, use the browser, and handle complex multi-step engineering tasks — always asking for permission at each step rather than running silently.
Cline pioneered the agentic coding pattern that Kilo Code and Roo Code later forked. It supports the Model Context Protocol (MCP) so the agent can extend its own toolset, and it works with any LLM provider — Anthropic Claude, OpenAI, Google, and local models. Pairing Cline with Claude Sonnet's tool-use capabilities produces some of the most capable open-source agent workflows available.
The OSS extension is completely free for individuals — you only pay for AI inference on a usage basis with no markup or vendor lock-in. The Cline Teams plan is free through Q1 2026, then $20/user/month with the first 10 seats always free, adding JetBrains support, centralized billing, and team admin features.
OpenCode is an open-source AI coding agent built by Anomaly that runs primarily in the terminal but is also available as an IDE extension and a beta desktop app on macOS, Windows, and Linux. Its standout feature is privacy-first design: OpenCode does not store any of your code, prompts, or context data, making it suitable for regulated environments and air-gapped workflows.
The agent supports 75+ LLM providers through the Models.dev catalog including Claude, OpenAI GPT, Google Gemini, GitHub Copilot, ChatGPT Plus/Pro accounts, and local models. It includes LSP integration for accurate code understanding, multi-session capability for running parallel agents on the same project, and shareable session links for debugging and team review.
OpenCode is fully free and open-source under MIT, with an optional paid "Zen" service for optimized models. Source is at github.com/anomalyco/opencode (147K+ stars, 6.5M monthly developers as of April 2026). It hit #1 on Hacker News on March 20, 2026, and crossed Cline + OpenHands in star velocity earlier in the year.
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