Blog

AI, product stories, and engineering behind Lexu

Engineering 8 minFeb 15, 2026

Smart Model Routing: How We Cut API Costs by 50%

We built an intelligent routing system that automatically selects the cheapest suitable AI model for every task. By analyzing prompt complexity, desired quality, and real-time costs, we reduced average API spend by half without any quality loss.

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Product 6 minFeb 1, 2026

60+ AI Models, One Platform — The Lexu Architecture

We support 60+ AI models across 6 categories. This post explains how we unified them all under one API layer with consistent request/response formats, provider failover, and smart caching.

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Design 5 minJan 20, 2026

Building a Fully Bilingual AI Platform with RTL Support

Supporting Arabic alongside English in a complex Next.js application requires more than just translations. Here's what we learned about RTL layouts, font rendering, and user experience in the Arab world.

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Tutorial 10 minJan 10, 2026

Getting the Most Out of AI Image Generation

Tips and tricks to write better prompts, choose the right model, and get stunning results on the first try. Covers Seedream, FLUX, DALL·E 3, and Imagen 4 with real before/after examples.

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Product 4 minMar 5, 2026

Introducing Creator Streaks & the Achievement System

Daily creativity habits improve the quality of your work. We built a streak system that rewards consistency — earn bonus credits for 3, 7, and 30-day creation streaks, plus 15 achievements to unlock.

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Product 3 minMar 13, 2026

Referral Program: Earn Credits by Inviting Friends

We launched our referral program. Share your unique link, and when your friend completes their first AI creation, you both earn bonus credits. Here's how the anti-abuse system works.