Compare · Audio
AssemblyAI TTS 1 vs ElevenLabs v3
Specs, pricing, and capabilities side by side, plus outputs generated from identical prompts, so the only variable between the columns is the model.
Cloud
AssemblyAI's text-to-speech model for voice agents, narration and multilingual applications, with eleven preset voices here.
Learn more about TTS 1 →Cloud
ElevenLabs' most expressive voice model with rich emotional and tonal range.
Learn more about v3 →Overview
Creator
AssemblyAI
ElevenLabs
Released
Oct 2026
Mar 2026
Available on
OpenRouter
OpenRouterReplicateElevenLabs
Model ID
assemblyai/assemblyai-tts-1
elevenlabs/v3
Specs
Pricing
$0.015 / 1k chars
$0.08 / 1k chars
Type
Text-to-speech
Text-to-speech
Voices
11 to choose from
47 to choose from
Languages
-
Multilingual
Voice controls
-
Speed, Stability, Similarity
Output formats
-
MP3, WAV_44100
Samples
NarrationBaseline naturalness and pacing
0:00 / 0:09
0:00 / 0:10
ExpressiveEmotion, emphasis, and pauses
0:00 / 0:07
0:00 / 0:08
Numbers and jargonDecimals, percentages, version numbers
0:00 / 0:15
0:00 / 0:13
Every sample is the model’s first result for the shared scene prompt (no cherry-picking), generated via Runware or Replicate. Hover a copy icon to read the full prompt.
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