Ant Chat Is Trending on HackerNews — Here's How to Build Your Own AI Chat App with NexaAPI

Published: March 28, 2026

What Is Ant Chat?

Ant Chat (baothiento.com/ant-chat) is an open-source AI chat desktop application built with:

• Electron — Cross-platform desktop framework
• Ant Design X — Alibaba's AI-focused UI component library
• React 19 + TypeScript — Modern frontend stack
• SQLite — Local data storage for conversation history
• MCP Protocol — Model Context Protocol for extending AI capabilities

The tagline? “20 ants carry a pencil to write you back.” It supports multiple AI providers out of the box: OpenAI (GPT series), Google Gemini (with web search), and DeepSeek (with deep thinking mode).

The HackerNews community loved it — developers appreciate the local-first approach (all data stored locally via SQLite), the zero-dependency philosophy, and the clean Ant Design X UI.

The Developer Problem: Building AI Chat Backends Is Expensive

Ant Chat is a great frontend. But the real cost driver in any AI chat application is the inference backend — the API calls that actually generate responses, images, and other AI content.

If you're building your own Ant Chat-style application, here's what you're looking at with direct API providers:

NexaAPI is consistently 5–50x cheaper than direct providers — and it gives you access to 50+ models through a single API key. No need to manage separate accounts for OpenAI, Gemini, and Replicate.

Build an AI Chat App Backend in 5 Lines of Python

Here's how to add AI image generation to your chat application using NexaAPI:

Python Example

# pip install nexaapi
from nexaapi import NexaAPI

client = NexaAPI(api_key='YOUR_API_KEY')

# Generate AI image for your chat app
response = client.image.generate(
    model='flux-schnell',
    prompt='A futuristic AI chat interface with glowing nodes',
    width=1024,
    height=1024
)

print(response.image_url)
# Cost: $0.003 per image — build your entire chat app UI for pennies

JavaScript/Node.js Example

// npm install nexaapi
import NexaAPI from 'nexaapi';

const client = new NexaAPI({ apiKey: 'YOUR_API_KEY' });

// Generate AI content for your chat application
const response = await client.image.generate({
  model: 'flux-schnell',
  prompt: 'A futuristic AI chat interface with glowing nodes',
  width: 1024,
  height: 1024
});

console.log(response.imageUrl);
// $0.003/image — the cheapest AI inference API available

What You Can Build: Ant Chat-Style Features with NexaAPI

Full Python Tutorial: Build an AI Chat App Backend

# pip install nexaapi flask
from nexaapi import NexaAPI
from flask import Flask, request, jsonify

app = Flask(__name__)
client = NexaAPI(api_key='YOUR_API_KEY')  # Get at nexa-api.com

@app.route('/api/chat/image', methods=['POST'])
def generate_chat_image():
    """Generate AI image from chat command"""
    data = request.json
    prompt = data.get('prompt', 'A beautiful landscape')
    model = data.get('model', 'flux-schnell')  # or 'flux-pro', 'dall-e-3', 'imagen-4'
    
    response = client.image.generate(
        model=model,
        prompt=prompt,
        width=1024,
        height=1024
    )
    
    return jsonify({
        'image_url': response.image_url,
        'cost': '$0.003',  # Cheapest AI image API
        'model': model
    })

@app.route('/api/chat/video', methods=['POST'])
def generate_chat_video():
    """Generate AI video from chat command"""
    data = request.json
    prompt = data.get('prompt', 'A cinematic sunset')
    
    # Start async video generation
    job = client.video.generate(
        model='kling-v3-pro',  # or 'veo-3.1', 'sora-2'
        prompt=prompt,
        duration=5
    )
    
    return jsonify({
        'job_id': job.job_id,
        'status': 'processing',
        'estimated_cost': '~$0.50'
    })

if __name__ == '__main__':
    app.run(debug=True)

# This backend works with any frontend — including Ant Chat!
# Cost for 1,000 images: $3.00 (vs $40-$170 with direct providers)

Why NexaAPI Is Perfect for Ant Chat-Style Apps

1. Single API key for 50+ models — Ant Chat supports multiple providers. NexaAPI gives you all of them through one endpoint. No more managing separate API keys for OpenAI, Gemini, and Replicate.
2. 5–50x cheaper than direct providers — At $0.003/image, you can generate 333 images for $1. Direct OpenAI costs $0.04–$0.17/image for the same quality.
3. Python + JavaScript SDKs — Drop-in compatible with any Electron app. Install with pip install nexaapi or npm install nexaapi.
4. Free tier to get started — $5 in free credits, no credit card required. Perfect for prototyping your chat app.
5. Available on RapidAPI — If you prefer the RapidAPI marketplace, NexaAPI is available at rapidapi.com/user/nexaquency.

FAQ: Building AI Chat Apps with NexaAPI

Conclusion: Build Your Own Ant Chat with a Cheaper AI Backend

Ant Chat is a great open-source project — clean UI, local-first data, multi-model support. But the real cost of any AI chat application is the inference backend.

With NexaAPI, you get access to the same 50+ AI models at 5–50x lower cost through a single unified API. Whether you're building an Ant Chat clone, a custom AI assistant, or adding AI features to an existing app — NexaAPI is the cheapest way to do it.

Install the SDK, get your free credits, and start building:

# Python
pip install nexaapi

# Node.js
npm install nexaapi

# Get your API key at nexa-api.com (free tier available)