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Comparisons4 min read

Cursor alternatives: coding agents with their own apps

Claude Code, Codex, OpenCode, Kimi Code and DeepSeek Harness as Cursor alternatives: which have desktop apps or editor extensions, and how to run several in Mirasim.

Mirasim's first-run screen, where you install Claude Code, Codex, OpenCode or another coding agentMirasim's first-run screen, where you install Claude Code, Codex, OpenCode or another coding agent

The short answer

Cursor is an AI editor with its own coding agent. If what you use most is the agent, the coding agents from the model companies now come with their own apps: Claude Code and Codex each have a desktop app and editor extensions, and OpenCode has desktop, terminal and phone apps. Mirasim runs these agents side by side in one window.

Claude Code or Codex extension
You want to keep VS Code and an agent inside it
OpenCode
You want open source and any model provider
Codex
You already pay for ChatGPT
Mirasim
You want several agents, and teammates, in one place

The alternatives, and where each runs

Where it runsSign in
Claude Code (Anthropic)Terminal, VS Code, JetBrains, desktop app, browserClaude subscription or Anthropic Console
Codex (OpenAI)Terminal, IDE extension (VS Code, Cursor, Windsurf), desktop app, chatgpt.com/codexChatGPT plan or API key
OpenCodeDesktop app (macOS, Windows, Linux), terminal, phone, SDKFree models, or 200+ providers
Kimi Code (Moonshot AI)Terminal; Zed and JetBrains through ACPKimi Code OAuth or a Kimi API key
DeepSeek Harness (DeepSeek)Desktop app (Apple-silicon Mac, 64-bit Windows), dsh web in a browserDeepSeek API key
MirasimDesktop app (macOS, Windows, Linux), phone apps, browser; runs the five above and five moreEach agent's own sign-in, your keys, or Mirasim credit

Each row comes from that product's own documentation on November 8, 2026. For prices, see each product's pricing page; for Mirasim, mirasim.ai/pricing.

Moving over from Cursor

  • Rules: Cursor reads AGENTS.md as well as .cursor/rules. Codex, Grok Build and Pi read AGENTS.md, and Claude Code can read it in place of a CLAUDE.md, so plain AGENTS.md rules carry over.
  • Editor: Claude Code's and Codex's extensions install in VS Code, and Codex lists Cursor and Windsurf too, so you can try them without changing editors.
  • Cloud work: if you used Cursor Cloud Agents, a Mirasim team space keeps sessions running after you close your laptop.

Questions

Is there a free Cursor alternative?
OpenCode is open source and comes with free models that need no sign-in. Mirasim is free with your own accounts and keys.
Is there an open-source Cursor alternative?
OpenCode, Kimi Code (MIT), DeepSeek Harness (MIT) and Codex's CLI (Apache-2.0) are open source.
Can Mirasim run Cursor's agent?
No. It runs Claude Code, Codex, Kimi Code, DeepSeek Harness, OpenCode, Qwen Code, Pi, Antigravity, ZCode and Grok Build.

Sources

Checked on November 8, 2026 against each product's own pages: cursor.com/docs, code.claude.com/docs/en/overview, github.com/openai/codex, opencode.ai, github.com/MoonshotAI/kimi-code and deepseek.com/en/harness. All of them change quickly, so check the sources for the latest.

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