Talking Head audio-driven RunPod

InfiniteTalk

InfiniteTalk costs $0.300/clip on FairStack — a audio-driven model for Character animation from audio, When RunPod reliability is needed, Budget avatar content. 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.

FairStack price
$0.300/clip
Try InfiniteTalk API Quickstart Last updated 2026-03-23

What is InfiniteTalk?

InfiniteTalk is an audio-driven talking head model hosted on RunPod's serverless infrastructure. It generates avatar videos from a portrait photo and audio input, offering both 480p and 720p resolution tiers at flat-rate pricing of $0.25 and $0.50 per video respectively. The RunPod hosting ensures reliable uptime and consistent availability. The model handles standard lip synchronization driven by audio input, producing talking head videos suitable for basic avatar content. Flat-rate pricing means cost is predictable regardless of video duration, which benefits longer clips where per-second models become expensive. Generation is slower than some competitors but delivers reliable results. Compared to Pixverse Lipsync and Sync Lipsync which charge per second, InfiniteTalk's flat-rate pricing becomes advantageous for clips longer than a few seconds. Against OmniHuman v1.5 which leads in emotional expressiveness, InfiniteTalk offers a simpler but more predictable option at a lower price. The model is best chosen when RunPod infrastructure reliability is a workflow requirement. Best suited for audio-driven character animation, longer talking head clips where flat-rate pricing provides savings, and workflows that prioritize RunPod's infrastructure reliability. Available on FairStack at infrastructure cost plus a 20% platform fee.

Key Features

Audio-driven lip sync from portrait photo
RunPod-hosted reliability
480p ($0.25) and 720p ($0.50) tiers
Flat-rate pricing per video

What are InfiniteTalk's strengths?

RunPod infrastructure (reliable)
Audio-driven lip sync
Multiple resolution tiers

What are InfiniteTalk's limitations?

Expensive for quality level
Slower generation

What is InfiniteTalk best for?

Character animation from audio When RunPod reliability is needed Budget avatar content

How much does InfiniteTalk cost?

Metric
FairStack
Details
Price per generation
$0.300
Includes 20% margin
Subscription
None
Pay per generation only

How does InfiniteTalk perform across capabilities?

lip sync
78%
facial expression
72%
head movement
68%
visual quality
70%

How do I use the InfiniteTalk API?

curl
curl -X POST https://api.fairstack.ai/v1/generations/talkingHead \
  -H "Authorization: Bearer $FAIRSTACK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "infinitetalk",
    "prompt": "Your prompt here"
  }'
Python
import requests

response = requests.post(
    "https://api.fairstack.ai/v1/generations/talkingHead",
    headers={
        "Authorization": f"Bearer {FAIRSTACK_API_KEY}",
        "Content-Type": "application/json",
    },
    json={
        "model": "infinitetalk",
        "prompt": "Your prompt here",
    },
)

result = response.json()
print(result["url"])
Node.js
const response = await fetch(
  "https://api.fairstack.ai/v1/generations/talkingHead",
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${process.env.FAIRSTACK_API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      model: "infinitetalk",
      prompt: "Your prompt here",
    }),
  }
);

const result = await response.json();
console.log(result.url);

What parameters does InfiniteTalk support?

Parameter
Type
Default
Details
width
integer
1024
Range: 256–1536
height
integer
1024
Range: 256–1536
num_inference_steps
integer
28
Range: 1–50
guidance
float
7.5
Range: 0–10
seed
integer
-1
image_format
enum
jpeg
Options: png, jpeg

Frequently Asked Questions

How much does InfiniteTalk cost?

InfiniteTalk costs $0.300/clip on FairStack as of 2026-03-23. 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 InfiniteTalk and what is it best for?

InfiniteTalk is an audio-driven talking head model hosted on RunPod's serverless infrastructure. It generates avatar videos from a portrait photo and audio input, offering both 480p and 720p resolution tiers at flat-rate pricing of $0.25 and $0.50 per video respectively. The RunPod hosting ensures reliable uptime and consistent availability. The model handles standard lip synchronization driven by audio input, producing talking head videos suitable for basic avatar content. Flat-rate pricing means cost is predictable regardless of video duration, which benefits longer clips where per-second models become expensive. Generation is slower than some competitors but delivers reliable results. Compared to Pixverse Lipsync and Sync Lipsync which charge per second, InfiniteTalk's flat-rate pricing becomes advantageous for clips longer than a few seconds. Against OmniHuman v1.5 which leads in emotional expressiveness, InfiniteTalk offers a simpler but more predictable option at a lower price. The model is best chosen when RunPod infrastructure reliability is a workflow requirement. Best suited for audio-driven character animation, longer talking head clips where flat-rate pricing provides savings, and workflows that prioritize RunPod's infrastructure reliability. Available on FairStack at infrastructure cost plus a 20% platform fee. InfiniteTalk is best for Character animation from audio, When RunPod reliability is needed, Budget avatar content. Available via FairStack's REST API with curl, Python, and Node.js SDKs.

Does InfiniteTalk have an API?

Yes. InfiniteTalk is available via FairStack's REST API at api.fairstack.ai. Send a POST request to /v1/generations/talkingHead with your API key and prompt. Works with curl, Python requests, Node.js fetch, and any HTTP client. No SDK installation required.

How does InfiniteTalk compare to other talking head models?

InfiniteTalk excels at Character animation from audio, When RunPod reliability is needed, Budget avatar content. It is a audio-driven model priced at $0.300/clip on FairStack. Key strengths: RunPod infrastructure (reliable), Audio-driven lip sync. Compare all talking head models at fairstack.ai/models.

What makes infinitetalk stand out from other image generators?

infinitetalk stands out with runpod infrastructure (reliable) and audio-driven lip sync. Generation typically takes 15-60 seconds due to its higher-quality processing.

What are the known limitations of infinitetalk?

Key limitations include: expensive for quality level; slower generation. FairStack documents these transparently so you can choose the right model for your workflow.

How fast is infinitetalk?

infinitetalk typically takes 15-60 seconds due to its higher-quality processing. The longer processing time reflects its advanced architecture, which produces higher-quality results than faster alternatives.

What features does infinitetalk support?

infinitetalk offers: audio-driven lip sync from portrait photo; runpod-hosted reliability; 480p ($0.25) and 720p ($0.50) tiers; flat-rate pricing per video. All capabilities are accessible through both the FairStack web interface and REST API.

Start using InfiniteTalk today

$0.300/clip. Full API access. No subscription.

Start Creating