Audio tools / Compare
AssemblyAI vs Otter
Both do 1 of the same audio tools task. Below is what each says about its own limits and pricing, and how each ranks on signals we can measure or quote.
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
A
AssemblyAI
With AssemblyAI's industry-leading Speech AI models, transcribe speech to text and extract insights from your voice data.
Signals score: 4.2 / 5 · not a hands-on test
Visit www.assemblyai.comB
Otter
Otter AI Meeting Agent supports real-time transcription, live chat, automated summaries, insights, and action items.
Signals score: 3.7 / 5 · not a hands-on test
Visit otter.aiPricing, limits and privacy
- Free tier
- A: $50 in free credits at signup, no credit card required. Streaming is limited to 5 new streams per minute on the free tier.
- B: Free (Basic) plan listed as free forever: 300 transcription minutes per month, 3 lifetime audio/video file imports, up to 30 minutes per conversation, 25 most recent conversations kept, 20 AI chat queries per month. Exports mp3 and txt.
- Paid plan
- A: Pay as you go, no subscription tiers listed. Pre-recorded example: $0.21 per hour (Universal-3.5 Pro). Streaming example: $0.45 per hour base (Universal-3.6 Pro Realtime). Text-to-speech: $15 per 1M input characters. Paid raises streaming to 100 new streams per minute. Volume pricing via sales. Currency is shown as $ but not named.
- B: Pro $16.99 per user per month billed monthly, or $8.33 per user per month billed annually. Business $24 per user per month monthly, or $19.99 annually. Enterprise by demo, price not stated. The page also shows lower Pro prices ($8.49 monthly, $4.17 annual) that apply only to India-issued credit cards.
- Signup
- A: Signup is needed to get the free credits and an API key.
- B: Not stated. Sign-up links are shown but the page does not say an account is required.
- Watermark
- A: Not applicable.
- B: Not stated.
- Where files go
- A: The privacy policy says services are mainly hosted and operated in the United States and data may be transferred to other countries. It does not mention audio and gives no retention period for audio or transcripts; personal data is kept as long as needed for the services or business purposes.
- B: Privacy policy says cloud providers including Amazon Web Services (United States) are used for compute and data storage, and data may be processed with partners outside the user's country. Retention period for audio or transcripts is not stated.
From each tool's own pages, checked 2026-11-01. Prices and limits change; check the tool before you rely on them. Sources are listed on each tool's page.
Compare on a task
Neither tool has been hands-on tested on these tasks yet, and we do not guess. Open a task to see both ranked with every other tool.
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