Mistral AI vs OpenAI: Pricing Comparison 2026
Side-by-side pricing comparison of Mistral AI and OpenAI. See all plans, features, and costs at a glance.
Bottom line: OpenAI starts at $0.2/mo, making it $15/mo cheaper than Mistral AI ($14.99/mo). Mistral AI offers a free plan.
Last updated: March 16, 2026
Mistral AI vs OpenAI: Quick Pricing Facts
| Feature | Mistral AI | OpenAI |
|---|---|---|
| Starting Price | $14.99/mo | $0.2/mo |
| Number of Plans | 4 | 14 |
| Free Tier | Yes | No |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
OpenAI is the more affordable option, starting at $0.2/mo compared to Mistral AI's $14.99/mo. Both are AI & ML tools with 18 combined pricing plans and 0 features compared.
Mistral AI stands out with a free plan for getting started.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your AI & ML needs.
| Pricing Plans |  Mistral AI Try it free |  OpenAI Try it free |
|---|---|---|
| Tier 1 | Free $0/monthCheapest | GPT-5.4 $3/month |
| Tier 2 | Pro $15/month | GPT-5 mini $0/monthCheapest |
| Tier 3 | Team $25/month | GPT-4.1 $3/monthCheapest |
| Tier 4 | Enterprise Custom pricing | GPT-4.1 mini $1/monthCheapest |
| Tier 5 | — | GPT-4.1 nano $0/monthCheapest |
| Tier 6 | — | o4-mini $4/monthCheapest |
| Tier 7 | — | Realtime API $2/monthCheapest |
| Tier 8 | — | Sora Video API Custom pricing |
| Tier 9 | — | Image Generation API $2/monthCheapest |
| Tier 10 | — | Responses API Custom pricing |
| Tier 11 | — | Chat Completions API Custom pricing |
| Tier 12 | — | Assistants API Custom pricing |
| Tier 13 | — | Built-in tools Custom pricing |
| Tier 14 | — | AgentKit Custom pricing |
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What Reviewers Say
Mistral AI
Which Should You Choose?
Choose Mistral AI if:
- •You need a free plan with core features—Mistral AI offers no-cost access with no credit card required
- •Mistral AI's usage-based pricing lets you match exact team size without tier gaps
- •Mistral AI's focused feature set keeps your team in control without tool bloat
Choose OpenAI if:
- •You want lower per-user costs—OpenAI starts at $0.2/mo, saving $14.790000000000001/mo compared to Mistral AI at $14.99/mo
- •You need 14 pricing tiers for flexible team sizing—more options mean less overpaying for features you don't need
- •You want OpenAI's approach to incremental feature unlocking across its 14 pricing tiers
Mistral AI offers a free plan [1], eliminating the cost barrier for evaluation, while OpenAI requires paid subscription from the start. This gives Mistral AI a significant advantage for teams with budget constraints or extended trial periods. Once you outgrow Mistral AI's free tier, upgrading to a paid plan at approximately $14.99/mo provides substantial additional functionality. Compare this pricing path against OpenAI's tiering starting at $0.2/mo to assess total cost of ownership over 12 months. Mistral AI's 4 tiers provide flexibility at different budgets, while OpenAI's 14 tiers structure may force you into higher-cost plans than necessary for your use case. If evaluation cost matters to your decision, Mistral AI is the obvious starting point with zero financial commitment. Use the free tier to validate core functionality before committing to paid plans from either tool.
Frequently Asked Questions: Mistral AI vs OpenAI
Which is cheaper, Mistral AI or OpenAI?
How many pricing plans does Mistral AI have vs OpenAI?
Does Mistral AI or OpenAI offer a free plan?
Does Mistral AI or OpenAI offer custom enterprise pricing?
How do Mistral AI and OpenAI compare for AI & ML?
Sources
- Mistral AI Official Pricing— Vendor pricing page
- OpenAI Official Pricing— Vendor pricing page
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