Compare · Audio
OpenAI GPT Audio 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
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OpenAI's generally available speech model: a chat model that reads text aloud in 13 natural-sounding voices, with consistent voice identity across long passages.
Learn more about GPT Audio →Cloud
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ElevenLabs' most expressive voice model with rich emotional and tonal range.
Learn more about v3 →Overview
Creator
OpenAI
ElevenLabs
Released
Aug 2025
Mar 2026
Available on
OpenRouter
OpenRouterReplicateElevenLabs
Model ID
openai/gpt-audio
elevenlabs/v3
Specs
Pricing
$0.12 / 1k chars
$0.04 / 1k chars
Type
Text-to-speech
Text-to-speech
Voices
13 to choose from
47 to choose from
Languages
-
Multilingual
Voice controls
-
Speed, Stability, Similarity
Output formats
-
MP3, WAV_44100
Samples
NarrationBaseline naturalness and pacing
PromptThe last train had already left, but she decided to walk anyway. The city was quieter than she remembered, and for the first time in weeks, she wasn't in a hurry.
0:00 / 0:10
Download openai-gpt-audio-narration.mp3
0:00 / 0:10
Download elevenlabs-v3-narration.mp3
ExpressiveEmotion, emphasis, and pauses
PromptWait — you're telling me it actually worked? After all that? I can't believe it. Honestly, I thought we'd lost the whole thing.
0:00 / 0:08
Download openai-gpt-audio-expressive.mp3
0:00 / 0:08
Download elevenlabs-v3-expressive.mp3
Numbers and jargonDecimals, percentages, version numbers
PromptThe API returned 3,481 results in 0.42 seconds, a 12 percent improvement over version 2.5. Latency at the 99th percentile dropped from 840 milliseconds to 610.
0:00 / 0:14
Download openai-gpt-audio-technical.mp3
0:00 / 0:13
Download elevenlabs-v3-technical.mp3
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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