Altered 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: Altered does not list a price
Free plan
Speechmatics
Only Speechmatics has one
Higher rating
Tie
3.9 against 3.9
Same job?
Yes
Both are Audio tools

Side by side

Compared on	Altered	Speechmatics
Our rating	3.9	3.9
Starts at	Not listed	$0.13/mo
Free plan	No	YesBetter
Category	Audio	Audio
Plans	See pricing	From $0.13/mo
Key features	Speech-to-speech voice morphing for post-production (Studio) Low-latency real-time voice transformation for calls and games Euphonia: voice restoration mode for dysphonia support Accent Translation for call centers Preserves original tempo and inflection during transformation	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	Genuine assistive-technology mode (Euphonia) alongside the entertainment features Preserves natural tempo and inflection, not just pitch-shifted output Covers both post-production editing and live real-time use in one company	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	Real-time voice changing raises identity-transparency considerations on calls Specific pricing wasn't listed on the page checked Real-Time Pro requires a download, not fully browser-based	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	Altered	Speechmatics

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

FAQ

Questions people ask

Is Altered better than Speechmatics?

In our reviews Altered scores 3.9 and Speechmatics scores 3.9. The better pick depends on the job. Altered: Real-time voice morphing for calls and games, plus studio-grade speech-to-speech editing for post-production - including Euphonia, a voice-restoration mode for dysphonia support. 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, Altered or Speechmatics?

Altered: see pricing. Speechmatics: from $0.13/mo.

Do Altered and Speechmatics have free plans?

Only Speechmatics has a free plan.

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Speechmatics compared with

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