CataleoSoftware
Get Your Software Listed Get Listed

AI Voice & Speech Comparison

Deepgram vs. Speechify

At a glance

At a glance

Deepgram

Best for

Best for developers building real-time speech-to-text, text-to-speech and voice agents through an API.

  • Small and mid-sized
  • Enterprise

Speechify

Best for

Best for turning documents, articles and audiobooks into natural-sounding audio.

  • Freelancers
  • Small and mid-sized

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Deepgram Speechify
Starting price Usage-based, pay-as-you-go No minimums and no expiry. Speech-to-text from $0.0048 / minute on Nova-3 monolingual streaming, text-to-speech from $0.0150 / 1,000 characters on Aura-1, and the Voice Agent API from $0.056 / minute. Free; paid tiers above The free tier has no commercial rights.
Free trial $200 in free credits to start, no credit card required Free tier, without commercial rights
Commercial use Yes, usage-based Paid tiers
Output Speech-to-text, text-to-speech and voice agents Natural text-to-speech for reading and listening, plus Speechify Studio for content
API Yes Yes, a text-to-speech API and a voice agents API on the developer platform
Hosting Cloud, or self-hosted for in-region and in-house data control Not stated
Voice cloning No, the catalogue is fixed: 40+ prebuilt Aura-2 voices across English, Spanish, Dutch, French, German, Italian and Japanese, with no cloning or custom-voice product on the price list Yes, voice cloning in Speechify Studio, and zero-shot cloning on the developer platform that turns a short reference clip into a reusable voice ID
Real-time use Yes, real-time streaming speech-to-text and text-to-speech, plus batch processing Yes, the developer models are streaming-native with a claimed time to first byte under 300ms, and a separate voice agents API adds tools, memory and telephony
Languages 45+ languages for speech-to-text, with automatic language detection 1,000+ voices in 60+ languages in the reader; the developer models cover six validated locales, namely US English, German, Mexican Spanish, French, Italian and Brazilian Portuguese
Speech-to-speech and dubbing No dubbing or translation product. Speech-to-speech runs as a pipeline through the Voice Agent API, which handles listening, thinking and speaking with configurable speech-to-text models, LLM providers and voices, plus function calling mid-conversation Yes, dubbing in Speechify Studio
Editing and controls Voice selection, plus encoding, bit rate, container and sample rate on the output, streamed audio and callbacks. Aura-2 is built to read naturally without SSML markup, and speed and style can be changed mid-conversation without restarting the session Playback up to 4.5x with synchronized highlighting, plus captions in Studio and SSML emotion control on the developer models across neutral, calm, cheerful, energetic and sad
Consent and trust SOC 2 Type 1 and 2, HIPAA, GDPR, CCPA and PCI compliant; self-hosting for in-house data control Cloning is consent-first: a voice is built from a consented reference clip, and the company publishes its policy on keeping cloned voices out of election misinformation
MCP-ready stated Yes No
Deployment more entries Cloud (SaaS), Browser-based, On-premise Cloud (SaaS), Browser-based
Support Community forum Email helpdesk
Onboarding Documentation and knowledge base Documentation and knowledge base
Company size Small and mid-sized, Enterprise Freelancers, Small and mid-sized
Integrations Not stated Google Docs, Gmail, Outlook, Slack

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price Deepgram Usage-based, pay-as-you-go Speechify Free; paid tiers above
  • Free trial Deepgram $200 in free credits to start, no credit card required Speechify Free tier, without commercial rights
  • Deployment Deepgram Cloud (SaaS), Browser-based, On-premise Speechify Cloud (SaaS), Browser-based
  • Company size Deepgram Small and mid-sized, Enterprise Speechify Freelancers, Small and mid-sized
  • Support Deepgram Community forum Speechify Email helpdesk

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Deepgram

Strengths

  • Unified speech-to-text, text-to-speech and voice-agent APIs
  • Real-time streaming with low latency for live applications
  • Usage-based with $200 free credit and no card required
  • Runs self-hosted for data control and compliance

Limitations

  • Developer platform, not a consumer voice studio
  • Several headline per-minute rates are promotional and sit below the list price, so the long-run cost depends on which rate applies

Speechify

Strengths

  • Best for turning reading material into audio
  • Accessibility focus
  • Popular with creators

Limitations

  • Free tiers lack commercial rights
  • More consumer reader than production studio

Plans

Pricing

Deepgram

  • Pay As You Go $0.0048 Per minute of Nova-3 monolingual streaming speech-to-text at the current promotional rate, $0.0077 at list. Nova-3 multilingual $0.0058, Flux English $0.0065. Text-to-speech $0.0150 / 1,000 characters on Aura-1 and $0.030 on Aura-2. Voice Agent API from $0.056 / minute. Add-ons are priced separately: redaction and diarization $0.0020 / minute each, entity detection $0.0017, keyterm prompting $0.0013. No minimums, no expiry, $200 in credits to start without a card.
  • Growth From $4,000 Per year in prepaid credits, redeemed against usage at lower rates: Nova-3 monolingual streaming $0.0042 / minute, Aura-1 $0.0135 and Aura-2 $0.027 / 1,000 characters.
  • Enterprise Not stated Custom pricing, volume commitments, self-hosting and dedicated support.
Visit site

What users say

Review Scores · opens after launch

Deepgram

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Speechify

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

Deepgram https://deepgram.com · checked against the official source on 2026-09-01

Speechify https://speechify.com · no check date recorded yet

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.