O
OMistral vs OpenAI Codex
Pricing, features, platforms and who each one suits — side by side.
M
Choose Mistral if…
- you want open source you can self-host or audit
- you work on Android, VS Code, JetBrains
- you're in its core audience: developers, enterprises with data-control requirements
O
Choose OpenAI Codex if…
- you want the lower entry price ($8/mo vs $14.99/mo)
- you work on Slack
- you're in its core audience: software developers, engineering teams
Side by side
Feature Mistral OpenAI Codex
Pricing modelFreemiumFreemium
Starting price$14.99/mo$8/mo
Free plan
Free trial
API
Open source
Trains AI on your contentYes, unless you opt out—
Data retentionVibe input/output kept until you delete conversation or account—
Security and compliance—SOC 2 Type II, ISO 27001, GDPR, HIPAA
Updates, last 90 days—5
PlatformsWeb, iOS, Android, API, VS Code, JetBrains, Self-hostedWeb, iOS, API, Slack
CategoryLocal & Open ModelsCode Assistants
CompanyMistral AIOpenAI OpCo, LLC
Based inFranceUnited States
Founded2023—
Part of——
Key features
M Mistral
- Open-weight models that can be self-hosted
- Model customization on your own data with Forge
- Terminal coding agent powered by Devstral
- VS Code and JetBrains plugin with tab completion
- Remote coding agents in isolated sandboxes
- Custom MCP connectors and 100+ app connectors
- Spreadsheet, slide and image generation in chat
- Scheduled prompts, agents and workflows
O OpenAI Codex
- Desktop app for local coding chats
- Command-line interface (CLI)
- IDE extension
- Cloud tasks through Codex on the web
- Automatic GitHub code review
- Slack integration
- SDK for scriptable workflows
- Works with an API key and pay-per-use billing
Plans and prices
From each vendor's site. Prices change — confirm before buying.
Mistral
FreeFree
Pro$14.99/mo excluding taxes
Team$24.99/user/mo excluding taxes
EnterpriseCustom
OpenAI Codex
Free$0/month
Go$8/month
Plus$20/month
ProFrom $100/month
Business$20/user/month billed annually; $25 billed monthly
Enterprise & EduContact sales
API KeyPay per usage
Strengths and limitations
Mistral
- Free plan includes chat, coding sessions and image generation
- Models can be self-hosted, on-prem or in your VPC
- Students can get Pro for $5.99/mo
- Pro includes $15/mo in API credits
- Commercial self-hosting requires a separate Mistral license
- Paid plans are subject to fair usage limits
- Enterprise pricing is available only through sales
OpenAI Codex
- Free plan includes basic Codex use in the desktop app
- Available in the desktop app, CLI, IDE, web, iOS and SDK
- Enterprise controls such as SCIM, RBAC, EKM and data residency
- API key option for pay-per-use billing
- Free and Go plans have no published usage numbers
- Plus usage limits are given only as estimated ranges
- API key use doesn't include cloud features such as code review or Slack
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Built from each vendor's public website; we haven't tested them hands-on. Editorial policy