kitio.aiFermat vs Mercer
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Mercer has the lower starting price: about $19 a month, against $30 for Fermat.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Sketch to design
- Custom image styles
- No-code tool editor
- Assets library
- Image and video generation
- AI Designer tool
- Custom brand model training
- AI paintbrush editing
- Collection asset management
- Task management
- Print-ready exports
| Feature | Fermat | Mercer |
|---|---|---|
| Best for | AI toolbox for fashion and retail design teams | AI fashion design and production platform, formerly Cala |
| Category | Design | Design |
| Pricing model | Freemium | Paid |
| Starting price | $30/mo | $19/mo |
| Free plan | Yes | No |
| Made by | Fermat | Mercer |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Mercer has the lower starting price: about $19 a month, against $30 for Fermat.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 1 credit
- Try the tools before upgrading
Fermat Pro
$30/mo
- 150 credits a month
- Commercial license
- High resolution export
- Private generations
Fermat Studio
$250/mo
- 500 credits a month
- Team access
- Unlimited users
- Support (8/5)
Fermat Enterprise
Contact sales
- Custom credits
- White label
- Role management
- Custom SLA
4 plans
Designer
$19/mo
- 300 AI credits per month
- 1 editor
- AI design and edit tools
Studio
$69/mo
- 1,200 AI images per month
- 3 editors
- AI Influences tool
Studio Pro
$159/mo
- 2,400 AI images per month
- 5 editors
- Task management
Enterprise
From $499/mo
- Unlimited usage
- In-house production network
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Fermat
- Built for fashion and retail workflows
- Train styles on your own products
- Commercial license on paid plans
- Free plan includes only 1 credit
- No student discounts
- Studio plan jumps to $250 a month
Mercer
- Covers design through production
- Brand-specific AI models
- Partners can view without an account
- No free plan shown
- Custom training limited on lower plans
- Extra editors cost $15 each
Which one should you choose?
Choose Fermat if you want:
- Built for fashion and retail workflows
- Train styles on your own products
- Commercial license on paid plans
Watch out: free plan includes only 1 credit.
Choose Mercer if you want:
- Covers design through production
- Brand-specific AI models
- Partners can view without an account
Watch out: no free plan shown.
Fermat vs Mercer FAQ
What is the difference between Fermat and Mercer?
Fermat: AI toolbox for fashion and retail design teams. Mercer: AI fashion design and production platform, formerly Cala. Both are design tools.
Is Fermat or Mercer cheaper?
Mercer has the lower starting price: about $19 a month, against $30 for Fermat.
Do Fermat and Mercer have free plans?
Fermat: Yes. Mercer: No.
Who makes Fermat?
Fermat is made by Fermat.
Who makes Mercer?
Mercer is made by Mercer.
Which should I choose, Fermat or Mercer?
Choose Fermat if you value built for fashion and retail workflows and train styles on your own products. Choose Mercer if you value covers design through production and brand-specific ai models.