AssemblyAI vs Speechmatics (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: AssemblyAI does not list a price
Free plan
Tie
Both have one
Higher rating
AssemblyAI
4.5 against 3.9
Same job?
Yes
Both are Audio tools

Side by side

Compared on	AssemblyAI	Speechmatics
Our rating	4.5Better	3.9
Starts at	Free	$0.13/mo
Free plan	Yes	Yes
Category	Audio	Audio
Plans	Free	From $0.13/mo
Key features	Usage-based speech-to-text API LeMUR framework for LLM analysis on transcripts Published accuracy benchmarks against competitors Real-time and batch transcription modes Free API credits for testing	Speech-to-text in 55+ languages and dialects Low-latency mode built for real-time voice agents English text-to-speech for voice-agent responses AI translation across 69 language pairs Custom models, custom voices and on-premises deployment for Enterprise
Pros	Strong, independently referenced accuracy benchmarks LeMUR adds LLM-based analysis without a separate pipeline Usage-based pricing scales with actual demand	A meaningful free credit to test the API before paying Broad language coverage backed by an enterprise-grade platform On-premises deployment for organisations that cannot use the cloud
Cons	No consumer app, requires development work to use Full value depends on having an engineering team to integrate it Cost can grow quickly at high transcription volume	Enterprise pricing is not public and needs a sales conversation Accuracy still depends on testing against real audio, not headline language counts alone Text-to-speech is limited to English on the pages reviewed
Company	AssemblyAI, founded 2017	Speechmatics

Prices come from each vendor's pricing page, last checked 20260922. Check the vendor before you buy.

FAQ

Questions people ask

Is AssemblyAI better than Speechmatics?

In our reviews AssemblyAI scores 4.5 and Speechmatics scores 3.9. The better pick depends on the job. AssemblyAI: A developer API, not an app, built for accuracy benchmarks. Speechmatics: Enterprise speech API platform for speech-to-text and voice agents in 55+ languages, with $100 in free usage and no card required.

Which is cheaper, AssemblyAI or Speechmatics?

AssemblyAI: free. Speechmatics: from $0.13/mo.

Do AssemblyAI and Speechmatics have free plans?

Yes, both have a free plan.

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