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const axios = require('axios');
const fs = require('fs');
const path = require('path');
async function toB64(imgPath) {
const data = fs.readFileSync(path.resolve(imgPath));
return Buffer.from(data).toString('base64');
}
const api_key = "YOUR API-KEY";
const url = "https://api.segmind.com/v1/faceswap-v5";
const data = {
"target_image": "toB64('https://segmind-resources.s3.amazonaws.com/input/d823dde1-aaae-4231-87b7-1d472bc71cef-faceswap-v5-input.png')",
"source_image": "toB64('https://segmind-inference-inputs.s3.amazonaws.com/48892b17-762c-4de5-b6d8-f99d8e139115-black-man-image.jpeg')",
"seed": 8005332,
"image_format": "png",
"quality": 95
};
(async function() {
try {
const response = await axios.post(url, data, { headers: { 'x-api-key': api_key } });
console.log(response.data);
} catch (error) {
console.error('Error:', error.response.data);
}
})();Attributes
Target image URL
Source image URL
Additional prompt for customization
Random seed for reproducibility
Output image format
Allowed values:
Output image quality
min : 10,
max : 100
To keep track of your credit usage, you can inspect the response headers of each API call. The x-remaining-credits property will indicate the number of remaining credits in your account. Ensure you monitor this value to avoid any disruptions in your API usage.
Segmind Faceswap v5: Ultra-Fast, Smart Face & Head Swap Model
Edited by Segmind Team on January 20, 2026.
What is Segmind Faceswap v5?
Segmind Faceswap v5 is the recent addition to the Segmind lineup of models, as the most cost-effective and fastest faceswap option. It matches the super-fast speed of Faceswap v2 while delivering exceptional visuals. It is tailored for tasks that require high-volume and real-time workflows, as it smoothly supports smart head swapping with built-in skin tone matching, to produce lifelike, fluid outcomes that require no extra adjustments.
Segmind Faceswap v5 is specifically fine-tuned for large-scale projects, making it perfect for developers, startups, and production environments prioritizing velocity, reliability, and low costs, all without sacrificing professional-level quality.
Key Features of Segmind Faceswap v5
- Superfast inference offers high-speed processing at par with Faceswap v2 and with significantly improved output quality.
- Smart head swap makes it an efficient model that can automatically decide on optimal face vs. full-head blending as per the requirement.
- Built-in skin tone matching means there is no need for manual correction as skin tones adapt to give natural results.
- Production-ready quality leads to high-fidelity results suitable for commercial use.
- Creative prompt support gives flexibility to use additional prompts like “wearing a hat” or “smiling.”
- Reproducible outputs are supported via seed-based generation that ensures consistent results.
- Cost-optimized is one of the highlights of the model as it offers the cheapest face swap models without compromising quality.
Best Use Cases
- Real-Time Applications: It is perfect for virtual try-ons, live previews, and interactive apps where latency matters.
- High-Volume API Workloads: It is optimized for batch processing, automation pipelines, and large-scale face replacement tasks.
- Marketing & Growth Experiments: It is an asset when a project needs to design rapid test creatives with different faces or demographics at minimal cost.
- Privacy & Anonymization: It can quickly replace faces in datasets, internal tools, or public assets while preserving realism.
- Content Creation at Scale: It is a robust option to generate multiple face variations for reels, thumbnails, ads, and social content in seconds.
Prompt Tips and Output Quality
The target_image is where the face is replaced, while the source_image provides the identity. For best results:
- Use clear, front-facing images with visible facial features
- Keep head angles and lighting reasonably similar
- Use additional_prompt only for subtle attributes (e.g., “wearing a hat”, “smiling”)
Set quality to
-
95 for production and final assets
-
80-85 for ultra-fast testing and iteration
-
The seed parameter ensures reproducibility, an essential aspect for A/B testing, caching, and consistent batch outputs.
-
JPEG is recommended for speed and size efficiency, while PNG can be used when maximum detail is required.
FAQs
How is Faceswap v5 different from Faceswap v4?
Faceswap v5 is significantly faster, cheaper, and smarter. It matches Faceswap v2's speed; it has built-in skin tone matching that ensures better skin-tone blending, and more reliable head swaps, without extra configuration.
Does v5 support both face and head swapping?
Yes, Faceswap v5 uses an intelligent head-swap system that automatically blends the face or full head; the transformation is based on the most natural result.
Is Faceswap v5 suitable for large-scale production?
Yes, Faceswap v5 is perfect for large-scale projects as it is designed for high-throughput pipelines, real-time use cases, and cost-sensitive deployments.
Can I control consistency across multiple runs?
To achieve consistent results across multiple generations, use the same seed, source image, and target image, as this will always produce identical results.
What makes Faceswap v5 the cheapest faceswap option?
Faceswap v5 utilizes a highly optimized architecture that reduces inference cost while ensuring premium quality, making it ideal for startups and scale-heavy applications.
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