kitio.aiZ.ai vs PizzaGPT
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Z.ai is completely free, while PizzaGPT is freemium.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- GLM model choice
- Thinking mode
- Web search
- Slide and web page generation
- File uploads
- Italian chat
- Quiz solving
- Email writing
- Text correction
- Translation
- Image generation
| Feature | Z.ai | PizzaGPT |
|---|---|---|
| Best for | Free chatbot running Zhipu's GLM models for chat, code and slides | Free Italian AI chat that needs no registration |
| Category | Chat assistants | Chat assistants |
| Pricing model | Free | Freemium |
| Starting price | Free | See pricing page |
| Free plan | Yes, fully free | Yes |
| Made by | Z.ai (formerly Zhipu AI) | Lorenzo Cella |
| Based in | China | Italy |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
Z.ai is completely free, while PizzaGPT is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Z.ai
- Free access to a frontier-class model
- Good at building small web apps
- Open-weight models behind it
- Less known outside developer circles
- Data handled by a Chinese company
- Fewer integrations than big rivals
PizzaGPT
- No registration to start
- Italian-first interface
- Writing, quiz and image tools in one site
- Pricing details not shown on the homepage
- Mainly useful in Italian
- Quiz help can encourage copying answers
Which one should you choose?
Choose Z.ai if you want:
- Free access to a frontier-class model
- Good at building small web apps
- Open-weight models behind it
Watch out: less known outside developer circles.
Choose PizzaGPT if you want:
- No registration to start
- Italian-first interface
- Writing, quiz and image tools in one site
Watch out: pricing details not shown on the homepage.
Z.ai vs PizzaGPT FAQ
What is the difference between Z.ai and PizzaGPT?
Z.ai: Free chatbot running Zhipu's GLM models for chat, code and slides. PizzaGPT: Free Italian AI chat that needs no registration. Both are chat assistants tools.
Is Z.ai or PizzaGPT cheaper?
Z.ai is completely free, while PizzaGPT is freemium.
Do Z.ai and PizzaGPT have free plans?
Z.ai: Yes, fully free. PizzaGPT: Yes.
Who makes Z.ai?
Z.ai is made by Z.ai (formerly Zhipu AI), based in China.
Who makes PizzaGPT?
PizzaGPT is made by Lorenzo Cella, based in Italy.
Which should I choose, Z.ai or PizzaGPT?
Choose Z.ai if you value free access to a frontier-class model and good at building small web apps. Choose PizzaGPT if you value no registration to start and italian-first interface.