Use all three from Reason
Open Reason on the web or the Mac app
Sign in at reasonmachines.com, or download the Reason app for macOS from reasonmachines.com/download. Both open the same Sessions. Sending work to Reason needs a Pro or Max plan.
Connect the plans you already pay for
In Settings › Models, connect subscriptions such as Claude (Pro or Max), ChatGPT (Plus, Pro or Business), Grok (SuperGrok or X Premium+) or GitHub Copilot, or add API keys. Reason runs on your own accounts first; a Reason plan's credits cover the rest.
Add Reason to Grok Bot
Tell Grok Bot to add the Reason MCP server https://mcp.reasonmachines.com/mcp and sign in when it asks. Grok Bot can then start Reason sessions for coding work, which run on Reason's cloud computer and Reason credits, not your Grok weekly pool.
Describe the task in the composer
Name the repository and say what you want, for example "fix the failing checkout test and open a pull request". Reason works on its own cloud computer, runs the tests, and opens the pull request for you to review.
Grok Bot, Claude Code and Codex at a glance
| Grok Bot | Claude Code | Codex | |
|---|---|---|---|
| Made by | xAI | Anthropic | OpenAI |
| Built for | Always-on teammates for any job | Coding | Coding |
| Runs on | A persistent cloud computer per user | Your computer, or cloud sessions | Your computer, or Codex cloud |
| Open source | No | No | CLI under Apache-2.0 |
| Schedules | Routines on a schedule or events | Scheduled tasks (research preview) | Scheduled tasks |
| Slack | Shared Bot in Slack | @Claude starts a cloud session | From ChatGPT Plus |
| Models | Picked by Grok Bot | Claude | OpenAI; open models with --oss |
| Entry plan | Premium, $30 a month | Pro, $20 a month | ChatGPT Free and Go include Codex; Plus $20 |
| Top individual plan | Ultra, $200 a month | Ultra, $200 a month | Pro, up to $500 a month |
| Coding Agent Index v2.0 | Not listed (Grok Build on Grok 4.7: 47) | 62 (Opus 5.5) | 55 (GPT-6 Astra) |
Prices are US list prices and scores are as Artificial Analysis lists them, checked Nov 2, 2026. The index measures a harness and model together on FrontierCode v1.1, Terminal-Bench 4.0 and SWE-Atlas-QnA-AA; try the same task in each on your own repository before you choose.
Which to use when
Claude Code if you want the highest-scoring agent on public benchmarks and already pay for a Claude plan. Codex if you have a ChatGPT plan, want an open-source CLI or OpenAI models. Grok Bot if what you need is a teammate that watches events, keeps routines and delegates, more than one that writes code.
Reason is the always-on teammate that is also a coding agent: its own cloud computer per Session, memory, Loops and Slack, with the model picked per task from Reason's models or your connected Claude, ChatGPT, Grok or Copilot accounts. Hit your limit? Reason keeps going on your other connected accounts or Reason credits.
Sources (checked Nov 2, 2026)
- xAI: Grok Bot overview
- xAI: Grok Bot skills, routines and automations
- xAI: X Subscription pricing
- Claude Code docs: Claude Code on the web
- Claude Code docs: scheduled tasks
- Claude Code docs: Claude Code in Slack
- Anthropic: Claude plans and pricing
- OpenAI: Codex cloud
- OpenAI: Codex pricing
- openai/codex on GitHub (Apache-2.0)
- Artificial Analysis: Coding Agent Index
- Artificial Analysis: coding agent methodology (v2.0)
- Artificial Analysis: Claude Code vs Codex
- Artificial Analysis: Claude Code vs Grok Build
Questions
Which is best for coding: Grok Bot, Claude Code or Codex?
On Artificial Analysis's Coding Agent Index v2.0, Claude Code on Opus 5.5 scores 62 and Codex on GPT-6 Astra 55; Grok Bot isn't benchmarked as a coding agent. One index on one set of tasks: try them on your own work.
Which runs while my laptop is closed?
Grok Bot on its persistent cloud computer, Claude Code cloud sessions, and Codex cloud tasks all keep working with your laptop closed. Local Claude Code and Codex sessions need your computer on.
Can I use them together?
Yes. Reason Network lets Grok Bot message your own Claude Code or Codex sessions, and Reason can run on your Claude and ChatGPT plans in Settings › Models.
Which is cheapest?
Codex: ChatGPT Free and Go include it, in the desktop app and subject to rollout. Claude Code starts at $20 a month with Claude Pro, and Grok Bot at $30 a month with X Subscription Premium.
What happens when I hit a usage limit in Reason?
Hit your limit? Reason keeps going on your other connected accounts or Reason credits. When the account a turn runs on hits its limit, Reason moves the turn to the same model on your other connected accounts, then to Reason credits if your workspace can pay, and says so in the conversation.
Is Reason made by xAI?
No. Grok Bot is a product of xAI. Reason is built by Reason Machines and is not affiliated with or endorsed by xAI, Anthropic, OpenAI or Cognition. Facts about other products on this page come from their own pages, linked under Sources.
More guides
- Grok Bot usage limit
- Grok Bot limit reached
- Grok Bot usage jumped to 100%
- When the Grok Bot weekly limit resets
- Grok Bot alternatives
- Grok Bot usage limit changes
- Grok Bot for coding: can Grok Bot code?
- Grok Bot vs Claude Code
- Grok Bot vs Codex
- Grok Bot vs Devin
- How to use Grok Bot with Claude Code
- Reason for Grok Bot: a software engineer for your Bot
- Reason Network: Grok Bot messages your own Claude Code or Codex