Question 1

Which STT API is most accurate?

Accepted Answer

On Compare STT, accuracy is measured through blind community votes, not a single lab benchmark. Rankings change as users compare transcriptions side by side. Check the live leaderboard for current ELO scores across Gladia, ElevenLabs, Deepgram, AssemblyAI, Speechmatics, and Mistral.

Question 2

How does Compare STT work?

Accepted Answer

You upload or record audio. Two speech-to-text providers transcribe it anonymously. You read both transcripts and vote for the more accurate one. Votes feed an ELO ranking system that updates the public leaderboard.

Question 3

What is ELO scoring?

Accepted Answer

ELO is a pairwise rating system originally used in chess. Each blind vote shifts provider ratings up or down based on expected vs. actual outcomes. Providers that consistently win comparisons climb the leaderboard.

Question 4

How many speech-to-text providers are compared?

Accepted Answer

Six providers are in the arena: Gladia (Solaria), ElevenLabs (Scribe v2), Deepgram (Nova 3), AssemblyAI (Universal-3 Pro), Speechmatics (Enhanced), and Mistral (Voxtral Mini).

Question 5

Is the comparison blind?

Accepted Answer

Yes. Provider names and logos are hidden until after you vote. You only see two anonymous transcripts labeled Model A and Model B, which reduces brand bias in accuracy judgments.

Question 6

How often is the leaderboard updated?

Accepted Answer

Rankings update continuously as new votes are submitted. ELO scores are recomputed from the full vote history, so every comparison can shift provider standings.

Question 7

Who sponsors Compare STT?

Accepted Answer

Compare STT is sponsored by Gladia, a speech-to-text API company. The benchmark is open source and community-driven; see the methodology page for full transparency on scoring and provider settings.

Which speech-to-text API
is the most accurate?

Record your voice or upload an audio file. We'll transcribe it with two providers. You compare, pick the best and learn who's behind it.

Frequently asked questions

Which speech-to-text APIis the most accurate?

Record your voice or upload an audio file. We'll transcribe it with two providers. You compare, pick the best and learn who's behind it.

Frequently asked questions

Which speech-to-text API
is the most accurate?