Cartesia Ink Review
Streaming STT for voice agents with native turn detection
Among the 43 speech-to-text tools we track, Cartesia Ink has the 12th-widest language coverage - a fit for multilingual and localization projects.
From $5/mo
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What we know about Cartesia Ink
Cartesia Ink sits in the speech-to-text apis category, where it is streaming STT for voice agents with native turn detection. We keep this Cartesia Ink profile grounded in primary sources, each fact dated to when we last confirmed it.
On pricing, Cartesia Ink starts at $5 per month for its entry tier. That is the sticker rate: real production cost usually runs higher once you add a language model, a voice provider, and telephony minutes.
On capabilities, Cartesia Ink covers word-level timestamps, custom vocabulary / keyterm boosting, soc 2 type ii, self-host / on-prem option, and websocket streaming api, and does not offer entity detection, sentiment analysis, and summarization endpoint. Each of those is verified against Cartesia Ink's own docs or dashboard, not marketing copy.
For compliance, with Cartesia Ink: SOC 2 Type II is in place. If you are in a regulated space, confirm the current posture with Cartesia Ink before you commit, since these change plan by plan.
Cartesia Ink ranks the 12th-widest language coverage of the 43 speech-to-text tools we track, so where it lands for you depends on which of those matters more.
In total we track 21 verified facts for Cartesia Ink today, each linking the primary source it came from so you can check our work - and vendor claims we have not measured ourselves are labeled as such on the Cartesia Ink fact sheet below.
Reviewed by vsref Editorialfacts verified Jul 20, 2026Methodology →
Fact sheet
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