Stack AI uses custom pricing.
Verified Aug 2026 from the official pricing page.
Is Stack AI worth the price?
Stack AI's pricing is quite limited for smaller teams, with only a Free tier and an Enterprise tier.
The Free tier offers a decent starting point with 500 runs/month for $0, but there's no mid-range option for growing businesses. This structure is best suited for individual developers or very large enterprises.
Pricing Plans
Free
$0 / month
- 500 runs per month
- 2 Projects
- 1 Seat
- Community support on Discord
Enterprise
Custom
- Custom number of runs
- Unlimited projects
- Custom number of seats
- All features and data loaders
- Dedicated infrastructure
- Dedicated solution engineers
- On-prem deployment
- Virtual Private Cloud deployment
Hidden Costs & Gotchas
Potential for rapid overage if not on Enterprise
How Stack AI compares
3 of 3 direct competitors offer a free plan.
| Tool | Starting price | Free plan |
|---|---|---|
| Stack AI | Contact sales | Yes |
| LangChain | $39/month | Yes |
| LlamaIndex | Contact sales | Yes |
| Hugging Face | $9/month | Yes |
Stack AI Pricing FAQ
How much does Stack AI cost?
Stack AI uses custom pricing. Contact Stack AI directly for a quote based on your team size and requirements.
Does Stack AI have a free plan?
Yes. Stack AI offers a free plan called "Free". It includes: 500 runs per month, 2 Projects, 1 Seat.
What are alternatives to Stack AI?
Alternatives to Stack AI include LangChain, LlamaIndex, Hugging Face. LangChain starts at $39/month; Hugging Face starts at $9/month.
Stack AI alternatives
Direct competitors. Starting prices match the table above.
Sources
- Official Stack AI pricing — stack-ai.com/pricing (verified Aug 2026)
- Cite this data: Toolradar, Stack AI pricing verified Aug 2026, toolradar.com/tools/stack-ai/pricing
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