No metered messages
Chatbase counts every reply against your plan. Zupport.chat doesn't meter because the inference cost lives on the visitor, not on us.
Chatbase alternative
A Chatbase alternative that charges once and keeps data on-device.
Chatbase is fast to set up, but the recurring bill scales with your message volume — and every visitor message is shipped to OpenAI under the hood. Zupport.chat runs the AI on the visitor's device and asks for a single $79.
01 · Why teams switch
Three reasons Chatbase customers move to Zupport.chat.
On-device inference
Chatbase routes every prompt to OpenAI. Zupport.chat runs Qwen via Transformers.js in WebGPU on the visitor's device — zero outbound calls during chat.
Predictable cost forever
Chatbase's bill grows with traffic. Zupport.chat's $79 is the bill, period. Scale to 10× traffic — same number.
02 · Side-by-side
Zupport.chat vs Chatbase, plainly.
Sourced from each company's published pricing page. Your numbers will vary; the ratio won't.
| Zupport.chat | Chatbase | |
|---|---|---|
| Pricing model | One-time $79 | Subscription, $19–399/mo |
| Message credits | Unlimited (no metering) | Capped per plan; overage extra |
| Where the AI runs | Visitor's browser | Chatbase + OpenAI servers |
| Visitor data shared with OpenAI | No | Yes |
| Multilingual | Built-in embedding model | Plan-dependent |
| 24-month total | $79 | ~$912 (Hobby) – ~$9,576 (Unlimited) |
03 · Questions
What people ask before switching.
Is the answer quality comparable to Chatbase?
For ecommerce support questions (returns, shipping, sizing, FAQ), yes. For long-form analytical chat across multiple complex documents, Chatbase's larger hosted models will outperform Zupport.chat's on-device model. Match the tool to the job.
Can I migrate my Chatbase sources?
Yes. Re-upload the same PDFs / docs / website URLs to Zupport.chat. The dashboard ingests them the same way.
Does Zupport.chat need an OpenAI API key?
No. There's no external API. The model runs on the visitor's device.
What about iPhone visitors? Can their browser run an AI model?
iOS Safari can't run the full model, so iOS visitors get scenarios + retrieval-augmented summary. Desktop, Android, and most laptops get full on-device LLM.
Will Chatbase's embed and Zupport.chat's embed conflict?
No — they're separate custom elements. You can run both during a migration if you want a side-by-side comparison.
Stop paying per message.
One-time $79. AI runs on the visitor's device. No OpenAI key, no monthly bill.