GPT-4o Audio vs 
Kokoro 82M
GPT-4o Audio is the newer model, released after Kokoro 82M.
Narrator Storytelling
Red door in an ancient forest, read aloud. Warmth and pacing, no theatrics.
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Which answer wins?
Price and specs
Not enough votes to call it. On the specs, GPT-4o Audio has the edge: bigger model tier, newer, bigger context window, major provider backing.
| Spec | GPT-4o Audio | Kokoro 82M |
|---|---|---|
| Input price | $2.5/M tokens | — |
| Output price | $10/M tokens | — |
| Context window | 128K tokens | — |
| Weights | — | Open |
| Free API (OpenRouter) | No | — |
| Released | Mar 2025 | Dec 2024 |
| At 10M a month | $25.00 | not listed |
Input tokens at list price. No caching, no batch discount.
Common questions
What is the difference between GPT-4o Audio and Kokoro 82M?
GPT-4o Audio is developed by OpenAI while Kokoro 82M is developed by Kokoro. You can compare their actual outputs across 6 challenges on Rival to see how they differ in practice.
Which is better, GPT-4o Audio or Kokoro 82M?
It depends on your use case. GPT-4o Audio and Kokoro 82M each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 6 challenges so you can judge which fits your needs best.
How can I compare GPT-4o Audio and Kokoro 82M on Rival?
This page shows a side-by-side comparison of GPT-4o Audio and Kokoro 82M across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.