Bark
Narrator Storytelling
Bark vs GPT-4o Audio
Compare Bark by OpenRouter against GPT-4o Audio by OpenAI, tested across 6 shared challenges. Updated February 2026.
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BarkvsGPT-4o Audio
6 challenges
Why Bark?
No standout advantages
Why GPT-4o Audio?
23 months newerMar 2025
6 / 6
Narrator Storytellingtext to-speech
Tests a TTS model's ability to deliver warm, engaging narration with natural pacing
GPT-4o Audio
Narrator Storytelling
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2 / 6
Emotional Monologuetext to-speech
Tests a TTS model's expressiveness, pausing, and emotional range
Bark
Emotional Monologue
GPT-4o Audio
Emotional Monologue
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3 / 6
News Anchor Bulletintext to-speech
Tests a TTS model's ability to deliver professional, authoritative speech
Bark
News Anchor Bulletin
GPT-4o Audio
News Anchor Bulletin
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4 / 6
Podcast Introductiontext to-speech
Tests conversational, energetic delivery with personality
Bark
Podcast Introduction
GPT-4o Audio
Podcast Introduction
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5 / 6
Multilingual Greetingtext to-speech
Tests a TTS model's ability to handle multiple languages in sequence
Bark
Multilingual Greeting
GPT-4o Audio
Multilingual Greeting
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6 / 6
Character Voice Dialoguetext to-speech
Tests a TTS model's ability to differentiate character voices in dialogue
Bark
Character Voice Dialogue
GPT-4o Audio
Character Voice Dialogue
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6 of 6