Speech & voice APIs tools used by Artificial Intelligence companies
Each line links its public proof and the date usedby last checked it.
33
Artificial Intelligence companies use Speech & voice APIs tools
The most used: AssemblyAI (10), Cartesia (9), and Deepgram (9).Data as of Oct 21, 2026
Ranking
Tools ranked by the Artificial Intelligence companies that use them. Ties go to the stronger proof.
Who uses each tool
Strongest proof first. A job post is a signal, the weakest proof.
1
AssemblyAI10 companies · Checked Oct 21, 2026105 confirmed 5 observed2
Cartesia9 companies · Checked Oct 18, 202696 confirmed 3 observed
2X SolutionsChecked Oct 18, 2026
AimAIChecked Oct 18, 2026
CaptionsChecked Oct 18, 2026
SpekoChecked Oct 18, 2026
ThoughtlyChecked Oct 18, 2026- tobyChecked Oct 18, 2026
ActOnCueChecked Oct 18, 2026
Blue MachinesChecked Oct 18, 2026
BolnaChecked Oct 18, 2026
3
Deepgram9 companies · Checked Oct 19, 202695 confirmed 4 observed
FlowticaChecked Oct 19, 2026
GetVocal AIChecked Oct 19, 2026
Prem AIChecked Oct 19, 2026
SigmaMind AIChecked Oct 19, 2026
CreovaiChecked Oct 19, 2026
CovalChecked Oct 19, 2026
Prosper AIChecked Oct 19, 2026
Elerian AIChecked Oct 19, 2026
PhonelyNot dated
4
LiveKit4 companies · Checked Oct 18, 202640 confirmed 4 observed5
Recall.ai2 companies · Checked Oct 18, 20262
How usedby counts
A company counts once per tool, at its strongest proof: confirmed (a case study, a named testimonial, a press release or the company's own account), declared (the company told usedby), observed (a vendor logo wall or customers page) or signal (a job post). Counts cover the companies on usedby, never the whole market.
26 companies that sell software were left out, so a vendor is never counted as a user.
Data as of October 21, 2026.
Questions
Which Speech & voice APIs tools do Artificial Intelligence companies use most?
AssemblyAI leads: 10 of the 33 Artificial Intelligence companies on usedby that use Speech & voice APIs tools use it. Next: Cartesia (9), Deepgram (9), LiveKit (4), and Recall.ai (2). See AssemblyAI.
How many Artificial Intelligence companies use Speech & voice APIs tools?
33 Artificial Intelligence companies on usedby use at least one of 5 Speech & voice APIs tools. It counts the companies usedby tracks.
What proof backs these lines?
Of the 33 companies, each counted at its strongest proof: 17 confirmed, 0 declared, 16 observed and 0 known from a job post.
How does usedby build this ranking?
usedby counts each Artificial Intelligence company once per tool, from public proof: case studies, press releases, the company's own site or its declaration to usedby, vendor customer pages and job posts. 26 software vendors are left out. Every line shows its proof and the date usedby last checked it.