Sonix is an AI transcription service that turns audio and video into accurate, timestamped text with translation, subtitles, and an in-browser editor across 54+ languages.

Overview

Sonix is an automated transcription platform aimed at teams and individuals who need fast, accurate text from meetings, interviews, podcasts, and video — not a human transcription agency. It uses speech recognition that reaches up to 99% accuracy on clean audio, automatically detects and labels multiple speakers, and timestamps every word so you can click a phrase and jump to that moment in the media. The standout workflow is the in-browser editor stitched to your audio: you correct transcripts inline while listening, then export to Word, PDF, SRT, VTT, and 30+ other formats. Sonix also translates into 40+ languages with a side-by-side editor, which is useful for global teams and subtitled video. It is SOC 2 Type 2 audited with AES-256 encryption, and a Medical Enterprise tier supports HIPAA/BAA for sensitive research. Pricing is duration-based (per audio hour), not per minute of effort, so a one-hour file costs the same whether it takes five minutes or an hour to process.

Key Features

  • Automated transcription up to 99% accuracy — fast speech recognition across 54+ languages and dialects
  • Speaker detection and word-level timestamps — labeled speakers and click-to-play editing synced to the audio
  • In-browser editor — polish transcripts inline while listening; no separate tool needed
  • One-click translation — translate into 40+ languages with a side-by-side comparison view
  • Flexible exports — Word, PDF, SRT, VTT, and 30+ formats for any workflow
  • Security and compliance — SOC 2 Type 2, AES-256, with a HIPAA/BAA Medical Enterprise tier

Pricing

PlanPriceFor
Standard (pay-as-you-go)$10/audio hour, $0/moIndividuals and one-off projects
Premium$16.50/seat/mo (annual)Teams; $5/hr effective, API + collaboration
EnterpriseCustomHigh-volume orgs, SSO, SCIM, BAAs
Free trialSign-up creditTest before committing

Comparison

vs. AssemblyAI: AssemblyAI is the developer-first API for building transcription into apps; Sonix is the finished product with editor, translation, and subtitles out of the box. vs. Deepgram: Deepgram wins on ultra-low-cost, high-volume API transcription; Sonix adds a polished human review editor and translation that developers would otherwise build themselves. vs. Otter.ai: Otter centers on live meeting notes and collaboration; Sonix is stronger for file-based transcription, translation, and subtitle export.

Compare alternatives

Side-by-side with the 3 closest alternatives.

ToolCategoryPricingVisit
Sonix (this) audio, voiceFrom $10/mo Site ↗
AssemblyAIaudio, voice, codeFree $0 (one-time $50 credit) · From $0.15/mo Site ↗
Deepgramvoice, audio, codeFrom $0.05/mo Site ↗
Otter.aiproductivityFree $0 · From $16.99/mo Site ↗
Sonix Current

Sonix is an AI transcription service that turns audio and video into accurate, timestamped text with translation, subtitles, and an in-browser editor across 54+ languages.

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Real-time meeting transcription and AI notes with live collaboration. Live transcription Read our hands-on review and compare the top AI Productivity

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Editor’s Review
4.4/5
Pros
  • +Accurate automated transcripts with speaker labels and timestamps
  • +Built-in editor, translation, and subtitle export in one product
  • +Duration-based pricing is predictable for project work
Cons
  • Pay-as-you-go at $10/hour adds up for heavy users
  • Not built for live meeting capture the way Otter is
  • Advanced collaboration and API need the paid Premium tier

Sonix is the right call when you have audio or video files to turn into clean, translated, submittable text. It is less suited to live meeting capture than Otter, and very large volumes push you toward the Enterprise tier.

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