AssemblyAI

Category: Audio & Voice · Audio editing & restoration

Features

• File transcription, realtime streaming and Sync API for short clips
• Free starter credits, not an ongoing unlimited free API plan
• Free: 5 new streams/minute; PAYG starts at 100 and scales automatically
• Diarization, Medical Mode, summaries and PII redaction with separate rates
• LLM Gateway with model-specific token billing; SSO is a paid add-on

Prices and plans

Limits

Upload recordings only with the necessary rights and consent. AssemblyAI may use contract-permitted files for its own training after PII redaction, except on EU servers, under a BAA or with opt-out enabled. Current Data Controls are paid-account features offering opt-out, TTL and BAA at no additional charge; changes apply to new requests. Older support text still describes email opt-out and loss of discounts. Streaming zero retention requires training opt-out and does not remove billing metadata. Files, transcripts and Gateway outputs have different retention rules. Streaming scaling raises the next minute's limit by 10% at 70% or greater utilization; this does not promise arbitrary free-tier concurrency.

Similar tools

From the same subcategory “Audio editing & restoration”, continuing alphabetically from this entry.

AsyncBrowser platform for audio and video recording, editing, AI generation, subtitles, voices and team production.Essentials / 450 / monthlyAudioPenAudioPen turns personal voice notes into structured text or a plain transcript. It does not join meetings or label speakers.Prime (3 months)AudiostripAudioStrip separates vocals and instrumentals, processes noise and mastering, and provides key and BPM lookup.Premium PlanAuphonicAuphonic automates loudness normalisation, levelling, noise and reverb reduction, editing and podcast publishing. Paid plans add speech recognition and automatic show notes.Recurring SCastmagicTurn audio and video into transcripts, notes, content and AI output for creator workflows.HobbyCleanvoiceAutomatically clean audio and video podcasts of filler words, noise, silences, and mouth sounds.Pay as You Go 5hDescriptEdit, clean, caption, and redub audio or video through its transcript.HobbyistHappyScribeAI transcription and subtitling platform with a meeting notetaker, automatic speech recognition in 60+ languages, translation and optional human proofreading.Basic

FAQ

How we compare

We compare free access, paid entry, plan limits, features and the listed official sources. Unsourced figures stay marked as not published.

Only confirmed entries appear in the catalog. Prices, plans and limits come from listed official vendor pages. Missing figures stay marked as not published. Result lists are alphabetical by default and can be switched to Free access first; neither is a quality ranking. The vendor page always wins.

Edited and checked by the AI Compare team

Sources

• https://www.assemblyai.com/pricing
• https://www.assemblyai.com/docs/billing-and-pricing
• https://www.assemblyai.com/docs/getting-started/models
• https://www.assemblyai.com/docs/data-controls
• https://www.assemblyai.com/docs/data-retention-and-model-training
• https://support.assemblyai.com/articles/5930031898-how-to-opt-out-of-data-sharing-for-model-training
• https://www.assemblyai.com/docs/sso
• https://www.assemblyai.com/deployments/self-hosted

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