Blog
How to build with coding agents together: comparisons, how-tos, and what we worked out while making Mirasim.
Use DeepSeek in Claude Code and Codex: the official setup, and a per-session switch
How DeepSeek's own guides connect Claude Code and Codex to DeepSeek models, and how Mirasim lets you pick DeepSeek per session without editing config.
How to install Claude Code on macOS, Windows and Linux
The official install commands for every platform, how to check the install and sign in, and how Mirasim installs Claude Code for you and runs it next to Codex.
Claude Code agent teams, and teams that mix agents and people
Claude Code's agent teams let a lead session split work across Claude teammates. How to turn them on, what they cost, and how Mirasim mixes Codex and people in.
Claude Code alternatives: nine coding agents, and why you might not have to choose
Codex, OpenCode, Kimi Code, DeepSeek Harness, Qwen Code and four more coding agents, grouped by why you'd switch, and how to run them next to Claude Code.
Claude Code desktop: what the app does, and another way to run it on your desktop
Claude Code's desktop app is the Code tab in Claude Desktop. Where to get it, what it does, and when Mirasim fits: next to Codex, on your phone, with your team.
Claude Code on the web: how cloud sessions work, and when a shared space fits better
Claude Code on the web runs sessions in Anthropic's cloud. How to start one, move it to your terminal, share it, and when a Mirasim team space fits better.
Claude Code Remote Control, and other ways to use Claude Code from your phone
How Claude Code's Remote Control works, what it needs, and three other ways to reach your coding agents from a phone, including Codex and other agents.
Claude Code usage limits: what the messages mean, and how to keep working
What Claude Code's session, weekly, Opus and Sonnet limit messages mean, what Anthropic suggests, and how to carry the task on with another agent in Mirasim.
Claude Code vs Codex: how they differ, and using both
Claude Code is Anthropic's coding agent; Codex is OpenAI's. How sign-in, apps and instruction files differ, and how to run both side by side.
The Codex app: where to get it now, and running Codex next to other agents
OpenAI's Codex desktop app now lives inside the ChatGPT desktop app. Where to get Codex on each platform, and how to run it next to Claude Code in Mirasim.
Codex Cloud: how it works, and when to use a shared space instead
Codex Cloud runs Codex tasks in OpenAI's cloud from published environments. How to set it up, what it can't reach, and when a shared Mirasim space fits better.
Codex on your phone: the ChatGPT app, and other ways
How Codex works in the ChatGPT phone app, what your computer needs, and other ways to follow Codex from a phone, including next to Claude Code in Mirasim.
A Conductor alternative for Mac, Windows and Linux
Conductor is joining Meta and its cloud shuts down Nov 20. Mirasim runs on Mac, Windows and Linux and imports your Conductor worktrees and chats in one click.
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.
Cursor vs Claude Code: an editor with an agent, or an agent for any editor
Cursor is an AI code editor with its own agent; Claude Code is Anthropic's agent for the terminal, your IDE and the browser. How they differ, and using both.
DeepSeek Harness (DSH) in Mirasim: on any desktop, next to your other agents
Run DeepSeek Harness (DSH) on macOS, Windows or Linux, next to Claude Code and Codex, with a DeepSeek API key or Mirasim credit. Share sessions with your team.
Grok Build in Mirasim: xAI's coding agent, next to your other agents
Grok Build is xAI's coding agent for the terminal. How to install it and sign in, and how to run it in Mirasim next to Claude Code and Codex.
Kimi Code in Mirasim: a desktop app for Kimi Code CLI, next to your other agents
Run Kimi Code CLI in a desktop app on macOS, Windows or Linux, next to Claude Code and Codex, with your Kimi login, a Kimi API key or Mirasim credit.
Mirasim vs Cursor Cloud Agents
Cursor Cloud Agents run Cursor's agent in cloud VMs and hand back pull requests. Mirasim hosts a space where your team steers Claude Code, Codex and others together.
OpenCode in Mirasim: the open-source coding agent, next to your other agents
OpenCode is an open-source coding agent with free models and 200+ providers. How to install it, its build and plan agents, and running it in Mirasim.
Pi coding agent in Mirasim: the minimal harness, next to your other agents
Pi is a minimal, MIT-licensed coding agent you extend yourself. How to install it, and how to run it in Mirasim next to Claude Code and Codex.
Qwen Code in Mirasim: Alibaba's open-source coding agent, next to your other agents
Qwen Code is the Qwen team's open-source coding agent. How to install it, the five ways to sign in, and how to run it in Mirasim next to Claude Code and Codex.
A Vibe Kanban alternative with a shared board
Vibe Kanban's company shut down and its shared board is gone. Mirasim keeps a team board of items next to coding agents running in their own worktrees.
Run Claude Code, Codex, OpenCode and seven more coding agents in one app
Mirasim runs Claude Code, Codex, OpenCode, Qwen Code, Kimi Code, DeepSeek Harness, Antigravity (Gemini), Grok Build, ZCode and Pi side by side in one desktop app.
Mirasim vs Grok Bot: How to choose
Grok Bot gives each person always-on Bots. Mirasim lets a team steer one coding agent session together. Where each one is the better choice.
Multiplayer coding agents: build with friends and teammates
A collaborative AI coding agent for friends and teams: Mirasim makes your computer a free collab space where you steer one session on DeepSeek, Kimi or your keys.
Running coding agents unmodified by changing one URL
Most tools that put a coding agent in their UI end up reimplementing it. Mirasim launches the real CLI and points its model URL to a local proxy.
Running two coding agents in one repository
Run a second Claude Code or Codex session on the same checkout and the two overwrite each other. Git worktrees let any Mirasim session start in its own.
Let simulated users test what the agent built: get evidence, not a model's verdict
An agent that reviews its own work only grades the code diff. Knowing if a person can finish the task takes somebody actually using what it built.
Agentic coding is cheap per call, but expensive per hour
A single model call costs little, but four coding agents for an afternoon add up fast. Mirasim keeps a ledger on your machine that shows where the budget went.