kitio.aiPolyAI vs Crescendo
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. PolyAI starts at See pricing page and Crescendo 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
- Natural language voice agents
- Multilingual calls
- Telephony integrations
- Agent Studio
- Call analytics
- AI agents across channels
- Human expert backup
- Conversation quality scoring
- Customer insight reports
- Outcome-based pricing
| Feature | PolyAI | Crescendo |
|---|---|---|
| Best for | Voice AI agents that answer customer service phone calls | AI-native outsourced customer service combining AI agents and humans |
| Category | Customer support | Customer support |
| Pricing model | Paid | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | No | No |
| Made by | PolyAI | Crescendo |
| Based in | United Kingdom | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Pricing compared
PolyAI starts at See pricing page and Crescendo starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Dialog-RSN-1 API
$2.00 / 1M input tokens
- $5.00 / 1M output tokens
- $0.20 / 1M cached input
- $100 free credit for new accounts
- Telephony not included
Agentic Dialog Platform
Contact sales
- Telephony and orchestration
- Dialog Studio tooling
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
PolyAI
- Very natural-sounding phone agents
- Handles complex call flows
- Strong in hospitality and finance
- Voice only, no chat focus
- Enterprise pricing only
- Setup requires telephony work
Crescendo
- No need to staff your own team
- AI and humans in one contract
- Pay for outcomes
- Less direct control over agents
- Not for teams wanting software only
- Pricing through sales
Which one should you choose?
Choose PolyAI if you want:
- Very natural-sounding phone agents
- Handles complex call flows
- Strong in hospitality and finance
Watch out: voice only, no chat focus.
Choose Crescendo if you want:
- No need to staff your own team
- AI and humans in one contract
- Pay for outcomes
Watch out: less direct control over agents.
PolyAI vs Crescendo FAQ
What is the difference between PolyAI and Crescendo?
PolyAI: Voice AI agents that answer customer service phone calls. Crescendo: AI-native outsourced customer service combining AI agents and humans. Both are customer support tools.
Is PolyAI or Crescendo cheaper?
PolyAI starts at See pricing page and Crescendo starts at See pricing page. Check both pricing pages for current plans.
Do PolyAI and Crescendo have free plans?
PolyAI: No. Crescendo: No.
Who makes PolyAI?
PolyAI is made by PolyAI, based in United Kingdom.
Who makes Crescendo?
Crescendo is made by Crescendo, based in United States.
Which should I choose, PolyAI or Crescendo?
Choose PolyAI if you value very natural-sounding phone agents and handles complex call flows. Choose Crescendo if you value no need to staff your own team and ai and humans in one contract.