Skip to content
effecthub

AI Transcriptions by Riverside vs Sonix

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors.

The short answer

Cheaper paid plan
AI Transcriptions by Riverside — $24/mo vs $25/mo for Sonix
Free plan
Only AI Transcriptions by Riverside (Sonix has paid plans only)
Public API
Sonix has one; not confirmed by us for AI Transcriptions by Riverside
Best fit
AI Transcriptions by Riverside: Podcasters and video creators already recording through Riverside · Sonix: Journalists and researchers cleaning up long interview recordings
Platforms
AI Transcriptions by Riverside: Web, macOS, iOS, Android · Sonix: Web

From our own records as of each tool's last check. Anything we have not confirmed is left out rather than guessed. How we verify

Side by side

FactAI Transcriptions by RiversideSonix
CategorySpeech-to-Text & TranscriptionSpeech-to-Text & Transcription
Pricing modelFreemiumPaid
Starts at$24/mo$25/mo
Public APINot confirmedYes
Trust score96 / 10094 / 100
PlatformsWeb, macOS, iOS, AndroidWeb, API
CompanyRiversideFM, Inc.Sonix, Inc.
Launched—2017
Last verifiedOct 15, 2026Oct 15, 2026

What our research says

AI Transcriptions by Riverside

The free single-speaker transcription has no signup and is genuinely usable on its own for quick jobs. The multi-speaker detection most podcasters actually want sits behind the same $24/month plan that unlocks Riverside's full recording and editing suite, so you're buying into the whole platform, not just transcription.

Pros

  • Free single-speaker transcription with no account required
  • Speaker detection and labeling on paid plans
  • Exports to TXT or SRT, and lets you edit video by editing the transcript text
  • Broad format support (MP3, WAV, MP4, MOV)

Cons

  • Multi-speaker detection requires a paid plan bundled with the wider recording platform, not sold standalone
  • API access is listed only on the sales-quoted Business plan
  • Company recently renamed from Riverside.fm to Riverside, so older links and branding are inconsistent

Sonix

Pick Sonix when the transcript is a working document you will correct, subtitle and hand off — the editor is the product, not the ASR. If you mainly want live meeting notes, Otter is cheaper and better suited; if the recording is legally critical, Rev's human tier is the safer route.

Pros

  • The word-locked editor makes correcting a long transcript far faster than re-typing
  • 50+ languages for both transcription and translation, priced at the same hourly rate
  • REST API with batch processing and custom vocabulary is included with subscriptions
  • SOC 2 Type II, HIPAA posture and a stated no-training policy on customer files

Cons

  • Per-seat pricing at $25/mo each punishes small teams sharing one library
  • Hour allowances are the real constraint; Core's 5 hrs/mo goes fast on video
  • The 99% accuracy claim is vendor marketing — independent tests put it near peers, around the mid-90s
  • No free plan, only a 30-minute trial

Which one fits

Choose AI Transcriptions by Riverside if you need

  • Podcasters and video creators already recording through Riverside
  • Quick, free single-speaker transcripts with no account
  • Turning a transcript into SRT captions for video

Choose Sonix if you need

  • Journalists and researchers cleaning up long interview recordings
  • Video teams producing multilingual subtitle tracks from one master file
  • Legal, medical and academic work where custom vocabulary matters
  • Engineering teams batch-transcribing a media archive through the API

AI Transcriptions by Riverside vs Sonix: the questions people ask

Is AI Transcriptions by Riverside cheaper than Sonix?

On published entry prices, AI Transcriptions by Riverside starts lower — $24/mo against $25/mo for Sonix. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does AI Transcriptions by Riverside or Sonix have a free tier?

AI Transcriptions by Riverside has a free tier; Sonix has paid plans only.

Which has a public API, AI Transcriptions by Riverside or Sonix?

Sonix ships a public API, as of our last verification. A public API for AI Transcriptions by Riverside is not confirmed by us — check its developer docs before you plan an integration.

All AI Transcriptions by Riverside alternatives →Browse all Speech-to-Text & Transcription →