ElevenLabs vs Deepgram

Explore the differences between ElevenLabs and Deepgram. Learn more about pricing, model performances and product features.

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Comparing ElevenLabs and Deepgram Voice AI Models

Both platforms offer advanced voice AI capabilities, but ElevenLabs excels with fast voice generation and Deepgram can create more natrual voices.

Updated on:

Feb 19, 2025

Features

Latency

Latency

Latency

Voice Quality

Voice Quality

Voice Quality

Character Limits

Character Limits

Character Limits

Instant Cloning

Instant Cloning

Instant Cloning

Professional Voice Cloning

Professional Voice Cloning

Professional Voice Cloning

Pronunciation Accuracy

Pronunciation Accuracy

Pronunciation Accuracy

Voice Customizations

Voice Customizations

Voice Customizations

Telephony Optimization

Telephony Optimization

Telephony Optimization

Flexible deployments

Flexible deployments

Flexible deployments

Languages Supported

Languages Supported

Languages Supported

Concurrency

Concurrency

Concurrency

ElevenLabs

75 ms for the lower quality Flash Model, and 300ms+ for the full model

Natural and realistic, widely used by all types of content creators

Limited to 40k characters per request

Requires 10 seconds of audio

Requires 60 minutes of audio

IPA support but isolated pronunciation

Stability, similarity, and style exaggeration controls

8kHz audio, telephony optimized voices

No on-device or on-prem support

32

Up to 15 on highest self serve tier, custom for enterprise

Deepgram

Less than 250 ms

Human-like tone, rhythm, and emotion

Limited to 2k characters per request

No voice cloning support

No voice cloning feature

No IPA support

Customization options may be limited

Audio quality may not meet all telephony needs

Supports on-premise and limited on-device capabilities

English only

Up to 2 concurrent requests

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Voice Quality Comparison

In terms of speech naturalness, ElevenLabs scored Medium in 44.98% of cases, while Deepgram achieved a High in 57.78% of cases, making Deepgram's voices more natural than ElevenLabs.

ElevenLabs also demonstrated excellent pronunciation accuracy at 81.97%, whereas Deepgram's pronunciation accuracy was slightly lower at 64.43%.

Overall, ElevenLabs excels in accuracy, while Deepgram shows promise in producing more natural-sounding speech.

Latency Evaluation Insights

In our latency evaluation, we measured the Time to First Audio (TTFA) for both ElevenLabs and Deepgram.

By calculating the 90th percentile score from 100 TTFA measurements for each provider, we found that ElevenLabs had a TTFA of 135ms, indicating a quick response time. Deepgram, while slightly slower, still performed well with a TTFA of 150ms.

This evaluation highlights ElevenLabs' advantage in low-latency performance, making it a strong choice for applications requiring immediate audio feedback.

Hallucination Rate Analysis

The hallucination rate was assessed for both ElevenLabs and Deepgram to determine how often the models generated inaccurate or nonsensical outputs.

ElevenLabs demonstrated a lower hallucination rate, with a WER of 2.83%, indicating a strong performance in generating coherent speech. Deepgram, however, had a higher WER of 5.67%, suggesting a greater tendency for inaccuracies.

This evaluation underscores ElevenLabs' strength in producing reliable outputs, while Deepgram may need further refinement to reduce hallucination occurrences.

Voice Design Control Test

In evaluating voice design controllability, ElevenLabs and Deepgram were assessed based on their ability to adapt voice characteristics.

ElevenLabs scored high in context awareness, with 63.37% of cases showing excellent adaptation to tone and emphasis. Deepgram, while performing adequately, had a lower context awareness score of 53.18%.

Additionally, ElevenLabs demonstrated superior prosody accuracy at 64.57%, compared to Deepgram's 55.52%. This evaluation highlights ElevenLabs' advantage in providing users with more control over voice design.

Explore Pricing Comparisons for ElevenLabs and Deepgram

ElevenLabs

Free - $0 per month with 10k characters

Starter - $5 per month with 30k characters

Creator - $11 per month with 100k characters

Pro - $99 per month with 500k characters

Scale - $330 per month with 2M characters

Deepgram

Free - $200 of credit

Growth - $4k+/year with discounted credits

Enterprise - $15k+ / year

Custom solutions for large-scale needs

Trusted by 50K+ Customers

Trusted by 50K+ Customers

Trusted by 50K+ Customers

Frequently asked questions

How does voice cloning work?

How does voice cloning work?

How does voice cloning work?

Which provide is the fastest text to speech voice model?

Which provide is the fastest text to speech voice model?

Which provide is the fastest text to speech voice model?

Can I customize the voice output?

Can I customize the voice output?

Can I customize the voice output?

What's a better alternative to ElevenLabs and Deepgram?

What's a better alternative to ElevenLabs and Deepgram?

What's a better alternative to ElevenLabs and Deepgram?

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