Agent 37 Cloud vs Codex: How They Actually Differ
Codex is the more documented choice with published plans at $0, $8, $20, $100, and $200 per month, multi-surface support, and GitHub pull request review. Agent 37 Cloud fits builders who specifically want a dedicated per-customer browser-based agent and do not need IDE, CLI, or desktop clients.
Compiled 2026-10-21 from our catalogue entries for Agent 37 Cloud and Codex.
The short answer
- Pick Codex if
- You want a coding agent that runs in terminal, IDE, desktop, and cloud with published pricing tiers, OpenAI's GPT models, and inline GitHub pull request review.
- Pick Agent 37 Cloud if
- You specifically want a web-based platform built on Hermes or OpenClaw that gives every customer a dedicated agent instance, and you do not need IDE, CLI, or desktop integrations.
- Cheapest way in
- Codex Free at $0 per month, which is the only $0 plan on file. Agent 37 Cloud has no published price, so it cannot be ranked on cost.
- What we could not compare
- Pricing, platforms, documentation, and verified plans are not recorded for Agent 37 Cloud, so a like-for-like head-to-head on cost, surfaces, or feature coverage is not possible from the sheet.
Codex is OpenAI's coding agent that runs the same agent across a CLI, an IDE extension, a desktop app, and a cloud environment, so work started in one surface can continue in another. Pricing is published in tiers from Free at $0 per month up through Pro 20x at $200 per month, with a token-based API pay-as-you-go option listed as well. It reviews GitHub pull requests inline, reads the AGENTS.md standard, and supports MCP tools; the sheet notes it runs only on OpenAI's GPT models and exposes fewer customization primitives (hooks, sub-agents) than some rivals.
Agent 37 Cloud is a web-based AI coding agent platform built on the Hermes or OpenClaw agent frameworks. Its listing highlights a dedicated agent instance per customer rather than shared infrastructure. The sheet does not record its pricing, platforms, documentation, or verified plans, and its description is positioned as browser-only with no documented IDE, CLI, or desktop integrations.
Side by side
Every cell is a field on our catalogue entry for that tool, copied as recorded. Rows where the two differ come first; blank fields say so rather than being filled in.
| Agent 37 Cloud | Codex | |
|---|---|---|
| Pricing model | Not recorded | Freemium |
| Starts at | Not recorded | Free — $0 /month |
| Runs on | Not recorded | web, mac, win, linux, cli, vscode-ext |
| Category | AI Coding Agents | AI Coding Agents |
| Public source code | No public repo listed | No public repo listed |
| Public docs | Not listed | Not listed |
- Public source code: From the repository link on each catalogue entry, not a licence audit.
Where Agent 37 Cloud is the better fit
- Web-based platform accessible through a browser with no local install
- Each customer gets a dedicated agent instance rather than shared infrastructure
- Built on Hermes or OpenClaw agent frameworks as referenced in its positioning
Where Codex is the better fit
- Runs one agent across CLI, IDE, desktop, and cloud surfaces, with work moving between them
- Inline GitHub pull request review that catches real bugs and proposes fixes
- Reads the shared AGENTS.md standard, supports MCP tools, and is included from ChatGPT Free through Pro
Which one should you pick?
The Free $0 plan, multi-surface support (web, mac, win, linux, cli, vscode-ext), and GitHub PR review line up with a solo dev workflow from day one.
Its positioning around a dedicated per-customer instance and browser-only access matches teams that don't want local installs or editor extensions.
Codex ships mac, win, linux, cli, and vscode-ext surfaces; the sheet records no platforms beyond web for Agent 37 Cloud.
Frequently asked questions
- How much does Codex cost?
- Free $0, Go $8, Plus $20, Pro 5x $100, Pro 20x $200 per month. Business and Enterprise are listed as not published. API Key is pay-as-you-go based on Codex's token usage.
- How much does Agent 37 Cloud cost?
- Pricing is not recorded on the fact sheet. We do not have a starting price or tier on file.
- Can Codex use Claude or Gemini?
- No. The sheet says Codex is locked to OpenAI's GPT models out of the box, with no Claude or Gemini support listed.
- Does Agent 37 Cloud have an IDE or CLI?
- The sheet records no platforms for Agent 37 Cloud beyond its web-based positioning, and lists no IDE, CLI, or desktop integration.
- Which one reviews GitHub pull requests?
- Codex, via cloud code review on a pull request that comments inline and proposes fixes. The sheet lists no GitHub PR review capability for Agent 37 Cloud.
What we compared
This page states nothing that is not in the two catalogue entries below. The exact text used to write it is reproduced here so you can check our reading, and both tools link through to their own pages and to the vendor.
- /tools/agent-37-cloud — checked 2026-06-27 · official site
- /tools/codex — checked 2026-07-02 · official site
Show the source text
## Agent 37 Cloud (/tools/agent-37-cloud) Tagline: Give every customer their own Hermes or OpenClaw agent Category: AI Coding Agents Pricing model: not recorded Starts at: Not recorded Platforms: not recorded Public repo: none listed Docs: none listed Verified plans: none on file Strengths on file: Operates as a web-based platform accessible through a browser.; Provides each customer with a dedicated AI agent instance rather than shared infrastructure.; Built on Hermes or OpenClaw agent frameworks as referenced in its positioning. Agent 37 Cloud is a web-based AI coding agent platform that gives each customer a dedicated agent instance rather than shared infrastructure. Its listing describes it as built on the Hermes or OpenClaw agent frameworks. It fits teams that want a per-customer isolated agent through the browser. Two caveats stand out: pricing is not publicly disclosed, which makes cost comparison hard, and it's web-only with no documented desktop, CLI, or IDE integrations. Compared with other AI coding agents that ship editor or command-line clients, Agent 37 Cloud stays in the browser and leans on dedicated per-customer instances. ## Codex (/tools/codex) Tagline: OpenAI's coding agent — works in the terminal, IDE, and cloud, reviews GitHub pull requests, and runs on GPT-5 models. Category: AI Coding Agents Pricing model: freemium Starts at: Free — $0 /month Platforms: web, mac, win, linux, cli, vscode-ext Public repo: none listed Docs: none listed Verified plans (read 2026-08-21): Free $0 /month | Go $8 /month | Plus $20 /month | Pro 5x $100 /month | Pro 20x $200 /month | Business / Enterprise Not published | API Key Pay only for the tokens Codex uses, based on API pricing Strengths on file: Runs one agent across CLI, IDE, desktop, and cloud — work moves between surfaces.; Strong GitHub integration: a cloud code review on a pull request that catches real bugs and proposes fixes.; Reads the shared AGENTS.md standard and supports MCP tools.; Included with ChatGPT plans, from the free tier up through Pro. Limits on file: Locked to OpenAI's GPT models — no Claude or Gemini out of the box.; Fewer built-in customization primitives (hooks, sub-agents) than some rivals. Codex is OpenAI's agentic coding tool. It runs the same agent across a terminal CLI, an IDE extension, a desktop app, and a cloud environment, so work started in one surface can continue in another. It reads the shared AGENTS.md instructions file, speaks the Model Context Protocol (MCP), and can spin up a cloud code review on a GitHub pull request that comments inline and proposes fixes. Codex runs on OpenAI's GPT models — currently GPT-5.5 as the recommended frontier model — and is included with ChatGPT plans, from the free tier up through Pro.
Change log
- 2026-10-21 — First published, compiled from the catalogue entries for Agent 37 Cloud and Codex.