kitio.aiAmazon Lex vs Chatvia
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Amazon Lex starts at See pricing page and Chatvia starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Speech and text bots
- Intent and slot handling
- Automated chatbot designer
- Streaming conversations
- Amazon Connect integration
- Document and website knowledge
- Hybrid search in PostgreSQL
- Tool calling
- Human handover
- Slack, WhatsApp and Teams channels
- Voice agents
| Feature | Amazon Lex | Chatvia |
|---|---|---|
| Best for | AWS service for building chatbots, voice bots and AI-driven IVR | Self-hosted AI agents that answer from your own documents |
| Category | Customer support | Customer support |
| Pricing model | Paid | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | No | Yes |
| Made by | Amazon Web Services | Chatvia |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Amazon Lex starts at See pricing page and Chatvia starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Request and response
$0.004 / speech request
- $0.00075 per text request
- Billed per user input
Streaming conversation
$0.0065 / speech interval
- $0.002 per text request
- For continuous conversations
Automated chatbot designer
$0.50 / training minute
- Builds intents from transcripts
Prices in USD, checked Nov 5, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Amazon Lex
- Pay only per request
- Works closely with Amazon Connect
- Handles both voice and text
- Requires an AWS account and setup
- Costs add up with speech volume
- Steeper learning curve than no-code builders
Chatvia
- Free self-hosting with no agent limits
- Works with any model you choose
- No separate vector database needed
- You run and maintain the server
- API and voice need a paid license
- License prices are not shown on the homepage
Which one should you choose?
Choose Amazon Lex if you want:
- Pay only per request
- Works closely with Amazon Connect
- Handles both voice and text
Watch out: requires an aws account and setup.
Choose Chatvia if you want:
- Free self-hosting with no agent limits
- Works with any model you choose
- No separate vector database needed
Watch out: you run and maintain the server.
Amazon Lex vs Chatvia FAQ
What is the difference between Amazon Lex and Chatvia?
Amazon Lex: AWS service for building chatbots, voice bots and AI-driven IVR. Chatvia: Self-hosted AI agents that answer from your own documents. Both are customer support tools.
Is Amazon Lex or Chatvia cheaper?
Amazon Lex starts at See pricing page and Chatvia starts at See pricing page. Check both pricing pages for current plans.
Do Amazon Lex and Chatvia have free plans?
Amazon Lex: No. Chatvia: Yes.
Who makes Amazon Lex?
Amazon Lex is made by Amazon Web Services, based in United States.
Who makes Chatvia?
Chatvia is made by Chatvia.
Which should I choose, Amazon Lex or Chatvia?
Choose Amazon Lex if you value pay only per request and works closely with amazon connect. Choose Chatvia if you value free self-hosting with no agent limits and works with any model you choose.