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Introducing Span-02

Emdash vs OpenCode (2026)

Updated April 29, 2026

vs

Overview

Rating
10.0 / 10
Rating
10.0 / 10
Best For
Developers using multiple coding agents
Best For
Developers who want an open-source coding agent across terminal, IDE, and desktop with any model provider
Product Summary

Open-source desktop app for running multiple coding agents in parallel, each isolated in its own git worktree.

Product Summary

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.

Starting Price
Free
Starting Price
$0Per forever
Free Trial
Yes
Free Trial
Yes
Free Version
Yes
Free Version
Yes
Website

Key features

Core capabilities each platform advertises.

EmdashEmdash
  • Multi-agent parallel execution
  • Git worktree isolation
  • SSH remote support
  • Claude Code & Codex support
  • Open source
OpenCodeOpenCode
  • 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.

EmdashEmdash

Pros

  • Fully open source (MIT) with zero cost and no vendor lock-in — 2,900+ stars and 220K+ downloads
  • True multi-agent parallelism with Git worktree isolation preventing conflicts between agents
  • Provider agnostic supporting 23+ coding agent CLIs from all major providers
  • End-to-end workflow from issue tracker to PR merge including diff review and CI/CD checks
  • Remote SSH support enabling use with cloud dev environments and powerful remote hardware

Cons

  • No built-in AI — requires separate paid subscriptions for each coding agent CLI
  • Electron-based and can be resource-heavy when running 20+ agents concurrently
  • Enterprise features like team management and auth are planned but not yet shipped
  • Early-stage desktop app at v0.4.x — users may encounter stability issues
OpenCodeOpenCode

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

What people are saying

EmdashEmdash
Data not available
OpenCodeOpenCode
jeremy_kHacker News

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 review

Emdash or OpenCode — which should you choose?

Choose Emdash if you want

  • Parallel coding tasks
  • Multi-agent orchestration
  • Remote development
  • Large codebase refactoring

Choose OpenCode 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

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1,000+Models
5 minSetup

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Frequently Asked Questions

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