Deepgram vs PolyAI: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Deepgram and PolyAI side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, Deepgram leads on a free plan. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Deepgram
Enterprise Voice AI: STT, TTS & Agent APIs for accurate, realistic, and cost-effective voice solutions.
Best for you if:
- • You want a free tier before you commit
PolyAI
The world's most lifelike voice AI agents for enterprise customer service.
Best for you if:
- • You want significantly boosts customer satisfaction (CSAT)
| At a Glance | Deepgram | PolyAI |
|---|---|---|
Starts at | Free plan | Not published |
Category | Transcription AI Agents | Customer Support AI Voice |
Rating | 4.6/5 G2 4.6 475 reviews | 5.0/5 G2 5.0 11 reviews |
Free plan | Yes | No |
Watch out for | Add-on features stack up: speaker diarization ($0.002/min) and PII redaction ($0.002/min) each add ~26% to the base Nova-3 price. A fully-featured transcription pipeline (Nova-3 + diarization + redaction + keyterm prompting) costs $0.0130/min vs $0.0077 base, a 69% premium. | n/a |
Choose Deepgram or PolyAI?
Choose Deepgram if
- You want a free tier before you commit
- You want fast transcription
- You want good accuracy
- You work in transcription, not customer support
Choose PolyAI if
- You want significantly boosts customer satisfaction (CSAT)
- You want reduces operational costs by automating customer interactions and seasonal hiring needs
- You work in customer support, not transcription
In-Depth Analysis
Deepgram
Enterprise Voice AI: STT, TTS & Agent APIs for accurate, realistic, and cost-effective voice solutions.
Deepgram is the best-value speech AI platform for developers, and it is not close.
Watch out
Add-on features stack up: speaker diarization ($0.002/min) and PII redaction ($0.002/min) each add ~26% to the base Nova-3 price. A fully-featured transcription pipeline (Nova-3 + diarization + redaction + keyterm prompting) costs $0.0130/min vs $0.0077 base, a 69% premium.
Strengths
- Pro: Fast transcription
- Pro: Good accuracy
- Pro: Real-time support
- Pro: Developer friendly
- Pro: Competitive pricing
Weaknesses
- Con: Newer player
- Con: Language limitations
- Con: Enterprise features limited
- Con: Documentation gaps
- Con: Smaller community
Key features
PolyAI
The world's most lifelike voice AI agents for enterprise customer service.
Strengths
- Pro: Significantly boosts customer satisfaction (CSAT)
- Pro: Reduces operational costs by automating customer interactions and seasonal hiring needs
- Pro: Handles a high percentage of calls without human agents, freeing up staff
- Pro: Provides authentic and natural-sounding voice agents that adapt to conversations
- Pro: Offers rapid deployment of branded voice agents
Weaknesses
- Con: Pricing is not publicly disclosed, requiring a demo request
- Con: Primarily focused on enterprise-level solutions, potentially less accessible for smaller businesses
- Con: Requires integration with existing systems, which might have initial setup considerations
Key features
Plans and prices: Deepgram vs PolyAI
| Tool | Plans and prices | Source |
|---|---|---|
| Deepgram |
| deepgram.com/pricing read Oct 31, 2026 |
| PolyAI | No plan prices on file | poly.ai/pricing |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Deepgram pricing and PolyAI pricing.
Key Takeaways
Deepgram
- Has a free plan
PolyAI
- Choose if you want the world's most lifelike voice AI agents for enterprise customer service
What the data shows
On the data below, Deepgram leads on a free plan. We do not name an overall winner for this pair.
- User ratings rest on too few reviews to rank (4.6/5 from 475 reviews for Deepgram, 5.0/5 from 11 reviews for PolyAI; we compare ratings only above 20 reviews on both sides).
- Only Deepgram has a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Deepgram and PolyAI compare in 2026?
On the data below, Deepgram leads on a free plan. We do not name an overall winner for this pair. User ratings rest on too few reviews to rank (4.6/5 from 475 reviews for Deepgram, 5.0/5 from 11 reviews for PolyAI; we compare ratings only above 20 reviews on both sides). Only Deepgram has a free plan.
What are Deepgram and PolyAI used for?
Deepgram: Enterprise Voice AI: STT, TTS & Agent APIs for accurate, realistic, and cost-effective voice solutions. PolyAI: The world's most lifelike voice AI agents for enterprise customer service.
What does Deepgram cost vs PolyAI?
Deepgram has no public paid-plan price on file. PolyAI has no public paid-plan price on file. Prices read on the vendors' pricing pages, latest check Oct 31, 2026.
What's the main difference between Deepgram and PolyAI?
Deepgram's main strength: fast transcription. PolyAI's main strength: significantly boosts customer satisfaction (CSAT).