MMAudio V2 (Add Audio)
MMAudio V2 (Add Audio) costs $0.0060/clip on FairStack — a video to video model for Adding audio to silent video, Sound effects generation, Ambient audio. No subscription required. Pay per generation with full REST API access. FairStack applies a transparent 20% margin on infrastructure cost so you always see the real price.
What is MMAudio V2 (Add Audio)?
MMAudio V2 is an AI audio generation model that analyzes video content and creates synchronized sound effects, ambient audio, and environmental sounds to accompany silent footage. The model watches the visual action and produces contextually appropriate audio at an extremely low per-second cost, making it practical for adding sound to large volumes of video content. With per-second billing at $0.001 per second, it is one of the most affordable AI generation models on any platform. A full minute of audio costs just $0.06, making it economical for batch processing hundreds of silent videos. The model generates content-aware audio that responds to visual events, producing appropriate sounds for actions, environments, and atmospheric elements. Compared to manual Foley work or stock audio libraries, MMAudio V2 automates audio creation at a tiny fraction of the cost and effort. Against other AI audio models, its ultra-low pricing makes high-volume video audio production viable. The generated audio is functional rather than studio-grade, suitable for social media, web content, and draft production. Best suited for adding audio to silent video, automated sound effects generation, and ambient audio creation for video content at scale. Available on FairStack at infrastructure cost plus a 20% platform fee.
Key Features
What are MMAudio V2 (Add Audio)'s strengths?
What are MMAudio V2 (Add Audio)'s limitations?
What is MMAudio V2 (Add Audio) best for?
How much does MMAudio V2 (Add Audio) cost?
How does MMAudio V2 (Add Audio) perform across capabilities?
MMAudio V2 — audio generation for video, not video quality
How do I use the MMAudio V2 (Add Audio) API?
curl -X POST https://api.fairstack.ai/v1/generations/video \
-H "Authorization: Bearer $FAIRSTACK_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "mmaudio-v2",
"prompt": "Your prompt here"
}'import requests
response = requests.post(
"https://api.fairstack.ai/v1/generations/video",
headers={
"Authorization": f"Bearer {FAIRSTACK_API_KEY}",
"Content-Type": "application/json",
},
json={
"model": "mmaudio-v2",
"prompt": "Your prompt here",
},
)
result = response.json()
print(result["url"])const response = await fetch(
"https://api.fairstack.ai/v1/generations/video",
{
method: "POST",
headers: {
Authorization: `Bearer ${process.env.FAIRSTACK_API_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
model: "mmaudio-v2",
prompt: "Your prompt here",
}),
}
);
const result = await response.json();
console.log(result.url);What parameters does MMAudio V2 (Add Audio) support?
Frequently Asked Questions
How much does MMAudio V2 (Add Audio) cost?
MMAudio V2 (Add Audio) costs $0.0060/clip on FairStack as of 2026-05-13. This price includes FairStack's transparent 20% margin on infrastructure cost. No subscription or monthly fee — you pay per generation only. Minimum deposit is $1.
What is MMAudio V2 (Add Audio) and what is it best for?
MMAudio V2 is an AI audio generation model that analyzes video content and creates synchronized sound effects, ambient audio, and environmental sounds to accompany silent footage. The model watches the visual action and produces contextually appropriate audio at an extremely low per-second cost, making it practical for adding sound to large volumes of video content. With per-second billing at $0.001 per second, it is one of the most affordable AI generation models on any platform. A full minute of audio costs just $0.06, making it economical for batch processing hundreds of silent videos. The model generates content-aware audio that responds to visual events, producing appropriate sounds for actions, environments, and atmospheric elements. Compared to manual Foley work or stock audio libraries, MMAudio V2 automates audio creation at a tiny fraction of the cost and effort. Against other AI audio models, its ultra-low pricing makes high-volume video audio production viable. The generated audio is functional rather than studio-grade, suitable for social media, web content, and draft production. Best suited for adding audio to silent video, automated sound effects generation, and ambient audio creation for video content at scale. Available on FairStack at infrastructure cost plus a 20% platform fee. MMAudio V2 (Add Audio) is best for Adding audio to silent video, Sound effects generation, Ambient audio. Available via FairStack's REST API with curl, Python, and Node.js SDKs.
Does MMAudio V2 (Add Audio) have an API?
Yes. MMAudio V2 (Add Audio) is available via FairStack's REST API at api.fairstack.ai. Send a POST request to /v1/generations/video with your API key and prompt. Works with curl, Python requests, Node.js fetch, and any HTTP client. No SDK installation required.
How does MMAudio V2 (Add Audio) compare to other video models?
MMAudio V2 (Add Audio) excels at Adding audio to silent video, Sound effects generation, Ambient audio. It is a video to video model priced at $0.0060/clip on FairStack. Key strengths: Very affordable, Good synchronization. Compare all video models at fairstack.ai/models.
What makes MMAudio V2 (Add Audio) stand out for music generation?
MMAudio V2 (Add Audio) excels with very affordable and good synchronization. Generation typically completes in under 5 seconds.
What are the known limitations of MMAudio V2 (Add Audio)?
Key limitations include: per-second at $0.001/s; generated audio — not recorded. FairStack documents these transparently so you can choose the right model for your workflow.
How fast is MMAudio V2 (Add Audio)?
MMAudio V2 (Add Audio) typically completes in under 5 seconds. This makes it suitable for real-time applications, interactive workflows, and high-volume batch processing.
What music generation features does MMAudio V2 (Add Audio) offer?
MMAudio V2 (Add Audio) offers: video-to-audio generation; synchronized audio creation; ultra-affordable at $0.001/s; content-aware sound. All capabilities are accessible through both the FairStack web interface and REST API.
Start using MMAudio V2 (Add Audio) today
$0.0060/clip. Full API access. No subscription.
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