# Replicas vs Codex cloud (2026): cloud tasks, pricing, and when to use each

OpenAI’s Codex cloud and Replicas compared on what each charges for, which agents and sign-ins they accept, where tasks start, and what the agent can test. Reviewed 2026-11-10.

- Published: 2026-11-04
- Updated: 2026-11-10
- Canonical: https://replicas.dev/resources/replicas-vs-codex-cloud

## Summary

Codex cloud is OpenAI’s service for running the Codex coding agent in the cloud, included with paid ChatGPT plans. [2](https://learn.chatgpt.com/docs/cloud)[1](https://learn.chatgpt.com/docs/pricing)

Replicas runs Codex on the ChatGPT subscription a team already has, next to Claude Code, Cursor, OpenCode, and Pi. [16](https://docs.replicas.dev)[17](https://docs.replicas.dev/admin/credentials) Replicas is also the more mature cloud agent platform for engineering work: a full REST API, tasks from GitHub issues and failing checks, and tasks from GitLab. [24](https://docs.replicas.dev/features/api)[22](https://docs.replicas.dev/features/github) Codex cloud has no REST API for cloud tasks and starts only from GitHub PR comments and reviews. [11](https://learn.chatgpt.com/docs/codex-sdk)[7](https://learn.chatgpt.com/docs/third-party/github) Codex cloud makes more sense for a team that already uses ChatGPT and OpenAI tools for everything, including the ChatGPT desktop app. [5](https://learn.chatgpt.com/docs/app)[1](https://learn.chatgpt.com/docs/pricing)

**Agents and models**

| Feature | Replicas | Codex cloud |
| --- | --- | --- |
| Agents | Claude Code, Codex, Cursor, OpenCode, Pi, Muse Code [16](https://docs.replicas.dev) | Codex only [2](https://learn.chatgpt.com/docs/cloud) |
| Model billing | Your Claude or ChatGPT plan, or API key [17](https://docs.replicas.dev/admin/credentials) | ChatGPT plan only, no API key [4](https://learn.chatgpt.com/docs/auth)[1](https://learn.chatgpt.com/docs/pricing) |

**Triggers**

| Feature | Replicas | Codex cloud |
| --- | --- | --- |
| GitHub | Yes: PRs, issues, failing checks [22](https://docs.replicas.dev/features/github) | Partly: PR comments, automatic PR review [7](https://learn.chatgpt.com/docs/third-party/github) |
| Other git hosts | GitLab [23](https://docs.replicas.dev/features/gitlab) | GitLab code review, in beta [8](https://learn.chatgpt.com/docs/third-party/gitlab) |
| Chat | Slack [19](https://docs.replicas.dev/features/slack) | Slack [9](https://learn.chatgpt.com/docs/third-party/slack) |
| Issue trackers | Linear; Jira only as an agent tool [20](https://docs.replicas.dev/features/linear)[21](https://docs.replicas.dev/features/plugins) | Linear [10](https://learn.chatgpt.com/docs/third-party/linear) |
| API | Yes: REST API, CLI, MCP [24](https://docs.replicas.dev/features/api)[25](https://docs.replicas.dev/features/mcp) | Partly: CLI; SDK runs locally [2](https://learn.chatgpt.com/docs/cloud)[11](https://learn.chatgpt.com/docs/codex-sdk) |
| Schedules and events | Yes: Cron, GitHub, GitLab, Slack, Sentry, webhooks [26](https://docs.replicas.dev/features/automations) | Yes: Schedules; Gmail, Slack, GitHub events [12](https://learn.chatgpt.com/docs/automations) |

**Test environment**

| Feature | Replicas | Codex cloud |
| --- | --- | --- |
| Runtime | A VM per task [15](https://docs.replicas.dev/features/workspaces/overview) | A VM per task [3](https://learn.chatgpt.com/docs/environments/cloud-environments) |
| Local runs | No: Cloud only [18](https://docs.replicas.dev/features/cli) | Yes: CLI, IDE extension, desktop app [5](https://learn.chatgpt.com/docs/app) |
| Repositories per task | Yes: Several, across GitHub and GitLab [27](https://docs.replicas.dev/features/environments) | Partly: Several, GitHub only [3](https://learn.chatgpt.com/docs/environments/cloud-environments) |
| Docker | Yes: Installed [15](https://docs.replicas.dev/features/workspaces/overview) | Not documented [3](https://learn.chatgpt.com/docs/environments/cloud-environments) |
| Browser | Yes: Desktop Chrome you can watch [15](https://docs.replicas.dev/features/workspaces/overview) | Not documented for cloud tasks [3](https://learn.chatgpt.com/docs/environments/cloud-environments)[6](https://learn.chatgpt.com/docs/browser) |
| iOS and Android | Yes: Cloud simulators and emulators [31](https://docs.replicas.dev/features/mobile-testing) | Not documented [3](https://learn.chatgpt.com/docs/environments/cloud-environments) |

**Security**

| Feature | Replicas | Codex cloud |
| --- | --- | --- |
| SOC 2 | Partly: Type I; Type II in progress [29](https://www.replicas.dev/enterprise) | Yes: Type II, through OpenAI [14](https://trust.openai.com/) |
| SSO and SCIM | Partly: SCIM on Enterprise [29](https://www.replicas.dev/enterprise) | Yes: SSO on Business, SCIM on Enterprise [1](https://learn.chatgpt.com/docs/pricing) |
| Audit log | Yes: Every config change [28](https://docs.replicas.dev/admin/audit-log) | Partly: Compliance API on Enterprise [1](https://learn.chatgpt.com/docs/pricing) |
| Training on your data | Set by your model provider [17](https://docs.replicas.dev/admin/credentials) | Off for business plans by default [1](https://learn.chatgpt.com/docs/pricing) |
| Self-hosting | Yes: Enterprise [29](https://www.replicas.dev/enterprise) | Not documented [13](https://learn.chatgpt.com/docs/enterprise/admin-setup) |

## Pricing

| Plan | Monthly price | Included usage | Usage type |
| --- | --- | --- | --- |
| ChatGPT Plus [1](https://learn.chatgpt.com/docs/pricing) | $20 | Usage limit per five-hour window | Codex messages and cloud tasks |
| ChatGPT Business [1](https://learn.chatgpt.com/docs/pricing) | $20 per seat billed annually; $25 monthly | Plus-level usage per seat, larger cloud VMs | Codex messages and cloud tasks |
| Replicas Developer [30](https://docs.replicas.dev/admin/billing) | $50 | $50 (12,500 small-VM minutes) | VM time |
| ChatGPT Pro 100 [1](https://learn.chatgpt.com/docs/pricing) | $100 | No five-hour usage limit | Codex messages and cloud tasks |
| ChatGPT Pro 200 [1](https://learn.chatgpt.com/docs/pricing) | $200 | No five-hour usage limit | Codex messages and cloud tasks |
| Replicas Team [30](https://docs.replicas.dev/admin/billing) | $200 and up, in $100 steps | $200 (50,000 small-VM minutes) | VM time |
| ChatGPT Pro 500 [1](https://learn.chatgpt.com/docs/pricing) | $500 | No five-hour usage limit, plus Ultrafast mode | Codex messages and cloud tasks |

- Codex cloud is included in Plus, Pro, Business, and Enterprise plans. [1](https://learn.chatgpt.com/docs/pricing) Local messages and cloud tasks share one usage allowance, and weekly limits may apply. [1](https://learn.chatgpt.com/docs/pricing) Plus and Pro users can buy credits after reaching a limit. [1](https://learn.chatgpt.com/docs/pricing)
- Each Replicas plan includes usage equal to its price. [30](https://docs.replicas.dev/admin/billing) A small VM (2 vCPU, 8 GB memory) uses $0.004 of that usage a minute. [30](https://docs.replicas.dev/admin/billing) Seats are free. [30](https://docs.replicas.dev/admin/billing)

Replicas VM rates in US dollars per minute [30](https://docs.replicas.dev/admin/billing):

| Size | Included | Overage |
| --- | --- | --- |
| 2 vCPU, 8 GB memory | $0.004 | $0.006 |
| 4 vCPU, 16 GB memory | $0.008 | $0.012 |
| 8 vCPU, 32 GB memory | $0.016 | $0.024 |

## Sources

1. [Pricing](https://learn.chatgpt.com/docs/pricing) (Codex docs)
2. [Codex Cloud](https://learn.chatgpt.com/docs/cloud) (Codex docs)
3. [Cloud environments](https://learn.chatgpt.com/docs/environments/cloud-environments) (Codex docs)
4. [Authentication](https://learn.chatgpt.com/docs/auth) (Codex docs)
5. [Desktop app](https://learn.chatgpt.com/docs/app) (Codex docs)
6. [Browser](https://learn.chatgpt.com/docs/browser) (Codex docs)
7. [GitHub](https://learn.chatgpt.com/docs/third-party/github) (Codex docs)
8. [GitLab (Beta)](https://learn.chatgpt.com/docs/third-party/gitlab) (Codex docs)
9. [Slack](https://learn.chatgpt.com/docs/third-party/slack) (Codex docs)
10. [Linear](https://learn.chatgpt.com/docs/third-party/linear) (Codex docs)
11. [Codex SDK](https://learn.chatgpt.com/docs/codex-sdk) (Codex docs)
12. [Scheduled tasks](https://learn.chatgpt.com/docs/automations) (Codex docs)
13. [Admin setup](https://learn.chatgpt.com/docs/enterprise/admin-setup) (Codex docs)
14. [Trust portal](https://trust.openai.com/) (OpenAI)
15. [Workspaces](https://docs.replicas.dev/features/workspaces/overview) (Replicas docs)
16. [Supported coding agents](https://docs.replicas.dev) (Replicas docs)
17. [Agent credentials](https://docs.replicas.dev/admin/credentials) (Replicas docs)
18. [CLI](https://docs.replicas.dev/features/cli) (Replicas docs)
19. [Slack](https://docs.replicas.dev/features/slack) (Replicas docs)
20. [Linear](https://docs.replicas.dev/features/linear) (Replicas docs)
21. [Plugins](https://docs.replicas.dev/features/plugins) (Replicas docs)
22. [GitHub](https://docs.replicas.dev/features/github) (Replicas docs)
23. [GitLab](https://docs.replicas.dev/features/gitlab) (Replicas docs)
24. [API](https://docs.replicas.dev/features/api) (Replicas docs)
25. [MCP server](https://docs.replicas.dev/features/mcp) (Replicas docs)
26. [Automations](https://docs.replicas.dev/features/automations) (Replicas docs)
27. [Environments](https://docs.replicas.dev/features/environments) (Replicas docs)
28. [Audit log](https://docs.replicas.dev/admin/audit-log) (Replicas docs)
29. [Enterprise](https://www.replicas.dev/enterprise) (Replicas)
30. [Billing](https://docs.replicas.dev/admin/billing) (Replicas docs)
31. [Mobile testing](https://docs.replicas.dev/features/mobile-testing) (Replicas docs)

## Related docs