ReplicasvsCodex cloud

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.

Updated November 10, 2026

Summary

Codex cloud is OpenAI’s service for running the Codex coding agent in the cloud, included with paid ChatGPT plans.[2][1]

Replicas runs Codex on the ChatGPT subscription a team already has, next to Claude Code, Cursor, OpenCode, and Pi.[16][17] 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][22] Codex cloud has no REST API for cloud tasks and starts only from GitHub PR comments and reviews.[11][7] Codex cloud makes more sense for a team that already uses ChatGPT and OpenAI tools for everything, including the ChatGPT desktop app.[5][1]

YesPartlyNo
Replicas and Codex cloud compared
FeatureReplicasCodex cloud
Agents and models
AgentsClaude Code, Codex, Cursor, OpenCode, Pi, Muse Code[16]Codex only[2]
Model billingYour Claude or ChatGPT plan, or API key[17]ChatGPT plan only, no API key[4][1]
Triggers
GitHubPRs, issues, failing checks[22]PR comments, automatic PR review[7]
Other git hostsGitLab[23]GitLab code review, in beta[8]
ChatSlack[19]Slack[9]
Issue trackersLinear; Jira only as an agent tool[20][21]Linear[10]
APIREST API, CLI, MCP[24][25]CLI; SDK runs locally[2][11]
Schedules and eventsCron, GitHub, GitLab, Slack, Sentry, webhooks[26]Schedules; Gmail, Slack, GitHub events[12]
Test environment
RuntimeA VM per task[15]A VM per task[3]
Local runsCloud only[18]CLI, IDE extension, desktop app[5]
Repositories per taskSeveral, across GitHub and GitLab[27]Several, GitHub only[3]
DockerInstalled[15]Not documented[3]
BrowserDesktop Chrome you can watch[15]Not documented for cloud tasks[3][6]
iOS and AndroidCloud simulators and emulators[31]Not documented[3]
Security
SOC 2Type I; Type II in progress[29]Type II, through OpenAI[14]
SSO and SCIMSCIM on Enterprise[29]SSO on Business, SCIM on Enterprise[1]
Audit logEvery config change[28]Compliance API on Enterprise[1]
Training on your dataSet by your model provider[17]Off for business plans by default[1]
Self-hostingEnterprise[29]Not documented[13]
Try Replicas$100 of free usage, no credit card required

Pricing

Plans

Codex cloud and Replicas plans, with the usage each includes
PlanUsage type
ChatGPT Plus[1]$20
Usage limit per five-hour window
Codex messages and cloud tasks
ChatGPT Business[1]$20 per seat billed annually; $25 monthly
Plus-level usage per seat, larger cloud VMs
Codex messages and cloud tasks
Replicas Developer[30]$50
$5012,500 small-VM minutes
VM time
ChatGPT Pro 100[1]$100
No five-hour usage limit
Codex messages and cloud tasks
ChatGPT Pro 200[1]$200
No five-hour usage limit
Codex messages and cloud tasks
Replicas Team[30]$200 and up, in $100 steps
$20050,000 small-VM minutes
VM time
ChatGPT Pro 500[1]$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] Local messages and cloud tasks share one usage allowance, and weekly limits may apply.[1] Plus and Pro users can buy credits after reaching a limit.[1]
  • Each Replicas plan includes usage equal to its price.[30] A small VM (2 vCPU, 8 GB memory) uses $0.004 of that usage a minute.[30] Seats are free.[30]

Replicas VM rates

US dollars per minute. A workspace is billed only while it is awake.[30]

SizeIncludedOverage
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

Checked against the vendors’ docs and pricing on November 10, 2026. Replicas publishes this page. Related: Replicas vs Claude Code, Codex alternatives, Codex vs Claude Code, OpenCode vs Codex. Corrections to founders@replicas.dev.

  1. 1Pricing · Codex docs
  2. 2Codex Cloud · Codex docs
  3. 3Cloud environments · Codex docs
  4. 4Authentication · Codex docs
  5. 5Desktop app · Codex docs
  6. 6Browser · Codex docs
  7. 7GitHub · Codex docs
  8. 8GitLab (Beta) · Codex docs
  9. 9Slack · Codex docs
  10. 10Linear · Codex docs
  11. 11Codex SDK · Codex docs
  12. 12Scheduled tasks · Codex docs
  13. 13Admin setup · Codex docs
  14. 14Trust portal · OpenAI
  15. 15Workspaces · Replicas docs
  16. 16Supported coding agents · Replicas docs
  17. 17Agent credentials · Replicas docs
  18. 18CLI · Replicas docs
  19. 19Slack · Replicas docs
  20. 20Linear · Replicas docs
  21. 21Plugins · Replicas docs
  22. 22GitHub · Replicas docs
  23. 23GitLab · Replicas docs
  24. 24API · Replicas docs
  25. 25MCP server · Replicas docs
  26. 26Automations · Replicas docs
  27. 27Environments · Replicas docs
  28. 28Audit log · Replicas docs
  29. 29Enterprise · Replicas
  30. 30Billing · Replicas docs
  31. 31Mobile testing · Replicas docs