Real-time transcription software means words appear while someone is still talking. Meeting captions, CART-style events, voice agents, and live subtitles all sit in this search. Upload tools do not. Mixing them is how you buy Otter when you needed a Zoom MP4 transcribed after the fact, or how you buy File Transcribe when you needed live captions on stage.
This list splits live human tools from developer streaming APIs. Honest note: File Transcribe is not real-time. It is the tool you use when the recording exists. It still belongs on this page so you do not waste a week on live software for an after-the-call job.
API context: Gladia alternatives · AssemblyAI vs Deepgram vs File Transcribe. Assistants: best AI meeting assistants.
Prices below are directional for mid-2026. Confirm on each vendor site.
Quick picks: real-time vs after-the-fact
Zoom / Meet / Teams captions
- Real-time?
- Yes
- Best job
- Live captions inside the meeting you already pay for
Otter.ai
- Real-time?
- Yes
- Best job
- Live transcript in a shared folder
Tactiq
- Real-time?
- Near live
- Best job
- Browser captions without a full bot seat
Deepgram / Gladia APIs
- Real-time?
- Yes
- Best job
- Live transcription inside your product
- Real-time?
- No
- Best job
- Accurate editor + SRT after you have the file
What "real-time" actually is
Platform captions
- Example
- Zoom live captions
- Failure
- Weak export, names wrong
Meeting bot
- Example
- Otter, Fireflies
- Failure
- Client bans the joiner
Extension
- Example
- Tactiq
- Failure
- Tab and browser limits
Streaming API
- Example
- Deepgram, Gladia
- Failure
- You build the UI
Batch / file
- Example
- File Transcribe
- Failure
- Not live, usually more editable
If the event already ended, stop shopping real-time. Upload the file.
1. Native Zoom, Meet, and Teams captions: best free real-time you already have
Turn on captions in the meeting platform. Fine for accessibility during the call. Bad as a publishable transcript.
Pick native captions if you only need live display. Pick File Transcribe if you need a clean file tomorrow. Zoom after: Zoom meetings.
2. Otter.ai: best real-time transcript workspace
Otter.ai is the default when the team wants words on screen during Zoom or Meet and a library afterward.
Pick Otter if live capture is allowed. Pick File Transcribe if it is not.
3. Tactiq: best lighter live captions
Tactiq captures in-tab Meet and Zoom. Lower visibility than a named bot.
Pick Tactiq if an extension fits IT. Pick Otter if you want a full meeting OS.
4. Streaming APIs: best real-time if you are a developer
Deepgram and Gladia (and similar) stream audio in, tokens out. This is real-time transcription as infrastructure.
Pick an API if live captions are a product feature. Pick File Transcribe if you are a person with an MP4.
5. File Transcribe: best when you thought you needed real-time and you did not
Most "I need real-time" tickets are "I missed the transcript checkbox." The Zoom cloud MP4 is enough. Upload on the homepage. Edit. Export.
Tradeoff: You wait until the meeting ends. Gain: No bot politics, better editor, SRT.
Remote / async version of this: best transcription software for remote teams.
How to choose in 30 seconds
| Situation | Pick |
|---|---|
| Live event, captions on the projector | Native captions or a live vendor |
| Daily internal Zoom, bot OK | Otter |
| Client forbids joiners | Record, then File Transcribe |
| Voice bot in our app | Deepgram / Gladia |
| Webinar already recorded | File Transcribe |
FAQ
What is the most accurate real-time transcription software?
Live is always messier than a file pass. Overlapping speech and bad mics hurt more in real time. For publishable text, transcribe the recording.
Is File Transcribe real-time?
No. Batch / file. Use it after.
Can Zoom AI Companion replace real-time transcription software?
It can recap inside Zoom. It is not a caption factory. Alternatives: best Zoom AI Companion alternatives.
Do I need real-time for accessibility?
During the event, yes, live captions. After, still upload a proofread SRT. Two jobs.
Bottom line
Buy real-time software only if words must appear during speech. For everything else, record and use File Transcribe. Do not pay for a live stack to transcribe a file you already have.
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More guides
- Transcription guides
- Try File Transcribe free
- Transcript format guide
- Best transcription software
- Transcribe Zoom meetings