These two are the same shape of product — a bot joins, it transcribes, you get notes and storage in the United States — which makes the places they diverge unusually easy to read.
Two bots, and only one of them keeps up
Read AI scores 5 for coverage, the highest of any entry here, with twenty-six enumerated languages, in-person capture and live event capture. Otter.ai scores 2, with six transcription languages and the vendor stating there are no others.
Read AI's own caveat is that mixed-language meetings are documented as not fully supported, so the twenty-six is a list of languages rather than a promise about a call that switches between two of them.
Read AI also puts an in-meeting dashboard in front of the room rather than producing only an after-the-fact summary, which changes what the other participants experience. Otter.ai's bot is quieter and does less.
What each one does with the audio afterwards
This is where the gap widens rather than closes. Otter.ai uses de-identified customer recordings to train its own models, and its retention is a thirty-day trash bin rather than a policy anyone can set. Otter.ai scores 2 for privacy.
Read AI lets users choose whether audio and video are retained at all, which is unusually direct — the control sits with the person in the meeting rather than an administrator. Read AI scores 3 for privacy, held back by storage being in the United States unless you negotiate otherwise.
On money they are closer. Read AI's free plan stops at five meeting transcripts a month; Otter.ai's free plan carries live transcription and speaker identification with no such cap. Read AI scores 3 for value and Otter.ai scores 3 as well.
Otter.ai's real asset is age: a long track record and an interface that has had time to settle, which is worth something on a tool the whole company touches.
Which should you choose?
Choose Read AI unless you need speaker identification on a free plan specifically. It covers more languages, records in more situations, and lets people decide whether their audio is kept.
Choose Otter.ai if every meeting is in English, the free tier's live transcription is the feature you actually use, and you accept that your recordings train the vendor's models.

Otter.ai
Long-running transcription service, strongest on English calls.

Read AI
Notes plus analytics on how the conversation actually went.
Specs
Ratings
Coverage
Output depth
Workflow fit
Ease of use
Privacy and control
Value
Features
Pricing
Otter.ai
Read AI
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