Criterion ElevenLabs Synthesia
CategoryAI Voice & Audio ToolsAI Video Generators
In one sentenceText-to-speech, voice cloning, transcription, music and voice agents from one platform and API.Business-focused AI video platform for training, communication and dubbing with AI avatars.
Problem it solvesRecording professional voiceovers and translating audio is slow and expensive; ElevenLabs generates high-quality speech and transcripts on demand.Corporate training and internal videos are slow to film and update; Synthesia lets teams produce and revise them from text.
Free planYesYes
Developer APIYes — docsYes — docs
Open sourceNoNo
PlatformsWeb, iOS, Android, APIWeb, API
Pricing (summary)Free plan with 10,000 credits per month, then Starter $6, Creator $22, Pro $99, Scale $299 and Business $990 per month, with roughly 17% off annual billing. Credits map to about one minute of TTS per 1,000 credits. Enterprise is custom.
Checked 2026-10-19
Free Basic plan with 10 minutes a month (watermarked). Starter is $29/month ($18 annual) and Pro $89/month ($64 annual), with credit allowances that convert to video minutes. Enterprise is custom with unlimited video minutes.
Checked 2026-10-19
Strengths
  • Wide product range from one account
  • Fast new model releases
  • Low entry price ($6/mo Starter)
  • Transparent API rates
  • Enterprise focus and governance
  • Wide avatar library
  • Clear per-minute API rates for interactive avatars
Limitations
  • Free plan lacks a commercial licence
  • Credits can run out quickly on long-form content
  • Voice cloning raises consent obligations
  • Free plan videos are watermarked
  • Minutes are limited on Starter
  • Plan structure changed on 1 Oct 2026, so older guides are outdated
  • Legacy video API limited to Pro and Enterprise