Qwen3-Omni Captioner API

Qwen3-Omni-Captioner automatically generates accurate and comprehensive descriptions for complex audio, including speech, ambient sounds, music, and sound effects. The model can identify speaker emotions, musical elements, and is suitable for audio content analysis, security audits, and audio editing. Supports audio input up to 40 minutes (1 second = 25 tokens).
Context
66K tokens
Input
$4.953 / 1M
Output
$3.978 / 1M
Released
Nov 14, 2025

How to use Qwen3-Omni Captioner API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to alibaba/qwen3-omni-30b-a3b-captioner.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "alibaba/qwen3-omni-30b-a3b-captioner",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "alibaba/qwen3-omni-30b-a3b-captioner",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"alibaba/qwen3-omni-30b-a3b-captioner","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Qwen3-Omni Captioner API Pricing

TypePrice
Input
$4.953 / 1M tokens
Output
$3.978 / 1M tokens

Qwen3-Omni Captioner vs other models

ModelInputOutputContextBest for
$4.953 / 1M
$3.978 / 1M
66K tokens
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$0.65 / 1M
$3.9 / 1M
1.05M tokens
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