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AI Voice & Speech Comparison

AssemblyAI vs. Typecast

At a glance

At a glance

AssemblyAI

Best for

Best for developers who need accurate transcription, speech insights or voice agents behind a pay-as-you-go API.

  • Small and mid-sized
  • Enterprise

Typecast

Best for

Best for creators who want expressive, emotion-controlled voiceover for video, audiobooks and podcasts.

  • Freelancers
  • Small and mid-sized
  • Enterprise

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

Full Comparison

Criterion AssemblyAI Typecast
Starting price lower value From $0.15 / hour of audio Pay-as-you-go, no subscription tiers. Pre-recorded speech-to-text is $0.15 / hour on Universal-2 and $0.21 / hour on Universal-3.5 Pro; streaming is $0.15 / hour on Universal-Streaming and $0.45 / hour on Universal-3.5 Pro Realtime; the Voice Agent API is $4.50 / hour, billed per second of connected conversation. Add-ons such as speaker diarization ($0.02 / hour) and medical mode ($0.15 / hour) are charged on top. Free tier; Basic from $5 / month Credit-based. The free tier offers trial voices only and requires attribution; commercial use starts on Basic.
Free trial $50 in free credits, no credit card required, covering up to 185 hours of pre-recorded or 333 hours of streaming transcription Free tier with 3,000 lifetime credits (around 5 minutes), trial voices only
Commercial use Yes, usage-based Paid (Basic and above)
Output Transcripts, structured speech insights and live voice agent conversations Expressive AI speech with emotion and dynamics control; video export on paid tiers
API Yes, REST APIs and SDKs Yes
Voice cloning No, the platform covers speech recognition and voice agents rather than voice creation Yes, instant and professional cloning; slots scale from one to ten by plan
Real-time use Yes, streaming speech-to-text and a Voice Agent API, alongside batch transcription of pre-recorded files Yes, real-time generation via the API
Languages 99 languages for pre-recorded audio on Universal-2, 18 on Universal-3.5 Pro; six on Universal-Streaming Multilingual and 18 on Universal-3.5 Pro Realtime; translation across 100+ languages 35+ languages
Speech-to-speech and dubbing Yes, the Voice Agent API runs speech-to-speech conversations by orchestrating speech-to-text, an LLM and text-to-speech at one all-inclusive rate Not documented: the API covers text-to-speech, streaming playback, word- and character-level timestamps and voice cloning from a sample, with no voice-conversion or dubbing endpoint
Editing and controls Speaker identification, diarization, custom formatting, key phrase extraction and guardrails for PII redaction, profanity filtering and content moderation Emotion, pitch, intensity, speed and dynamics
Consent and trust SOC 2 Type 2, ISO 27001, PCI-DSS and a HIPAA BAA included at no premium; EU region available at identical US pricing for GDPR Every voice actor on the platform has agreed to the use cases for their voice and keeps ownership of the model. Uploading a sample requires confirming permission for any third-party voice in it, and cloned voices stay private
MCP-ready stated Yes No
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Not stated Email helpdesk
Onboarding Documentation and knowledge base Documentation and knowledge base
Company size Small and mid-sized, Enterprise more entries Freelancers, Small and mid-sized, Enterprise

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 AssemblyAI From $0.15 / hour of audio Typecast Free tier; Basic from $5 / month
  • Free trial AssemblyAI $50 in free credits, no credit card required, covering up to 185 hours of pre-recorded or 333 hours of streaming transcription Typecast Free tier with 3,000 lifetime credits (around 5 minutes), trial voices only
  • Company size AssemblyAI Small and mid-sized, Enterprise Typecast Freelancers, Small and mid-sized, Enterprise
  • MCP-ready AssemblyAI Yes Typecast No
  • Commercial use AssemblyAI Yes, usage-based Typecast Paid (Basic and above)

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

The trade-offs

Strengths and Limitations

AssemblyAI

Strengths

  • Pay-as-you-go with no subscription and $50 in free credits to start
  • 99 languages for pre-recorded transcription on Universal-2
  • Compliance certifications and an EU region at no price premium
  • Official MCP server exposes transcription and transcript search to AI agents

Limitations

  • A developer API, not a ready-made studio or editor
  • No voice cloning or voice creation
  • Speech Understanding add-ons are billed on top of the base rate, so cost stacks per request
  • Streaming is billed for as long as the connection stays open, not for the audio sent, and multichannel files are billed per channel
  • Universal-3.5 Pro covers 18 languages against 99 on the older Universal-2

Typecast

Strengths

  • 700+ voices with fine emotion and delivery control
  • Context-aware emotion model adapts tone to the script
  • Affordable entry with a commercial license from $5 per month

Limitations

  • Free tier is limited to trial voices and requires attribution
  • Credit allowances are modest on the lower tiers

Plans

Pricing

AssemblyAI

  • Pay-as-you-go From $0.15 / hour No subscription. Pre-recorded transcription $0.15 / hour on Universal-2 and $0.21 / hour on Universal-3.5 Pro, streaming $0.15 / hour on Universal-Streaming and $0.45 / hour on Universal-3.5 Pro Realtime, Voice Agent API $4.50 / hour. Add-ons are billed on top: speaker diarization $0.02 / hour, medical mode $0.15 / hour, keyterms prompting $0.05 / hour on Universal-3.5 Pro and included on Universal-2. Free accounts get 5 new streams per minute, pay-as-you-go accounts 100.
  • Custom Not stated Contact sales for custom rate limits, higher concurrency and volume discounts. HIPAA BAA, PCI-DSS, ISO 27001 and SOC 2 Type 2 compliance at no premium, and an EU region at identical US pricing.
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Typecast

  • Free $0 3,000 lifetime credits (around 5 minutes), trial voices only, attribution required.
  • Basic $5 / month $54 / year. 30,000 credits per month (around 35 minutes), all AI voices, commercial license, 1 instant cloning slot.
  • Plus $19 / month $204 / year. 40,000 credits per month, speed control, 1 professional cloning slot.
  • Pro $29 / month $312 / year. 75,000 credits per month, emotion and intonation controls, 2 cloning slots.
  • Business $69 / month $744 / year. 200,000 credits per month, 10 cloning slots, additional credit purchases.
  • Enterprise Not stated Custom pricing.
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What users say

Review Scores · opens after launch

AssemblyAI

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.

Typecast

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

AssemblyAI https://www.assemblyai.com · checked against the official source on 2026-08-30

Typecast https://typecast.ai · 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.