Building Reliable AI Applications: How Requesty Helps Developers Save Time and Cut Costs

By Thibault Jaigu

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The Challenge of Modern AI Development

In today's fast-evolving AI landscape, developers face a common set of challenges:

  • Juggling multiple API providers with different rate limits and pricing structures

  • Managing fallbacks when primary models fail or timeout

  • Optimizing token usage to prevent ballooning costs

  • Choosing the right model for specific tasks without trial and error

Whether you're building an AI chat interface, implementing AI coding assistance, or creating voice generator AI features, these challenges can slow down development and inflate budgets. This is where Requesty enters the picture—offering a comprehensive solution that helps you build more reliable AI applications while saving both time and money.

How Requesty Transforms AI Development

1. Access to 150+ AI Models Through a Single API

Gone are the days of managing separate accounts for GPT, Claude, DeepSeek, Nebius, and other AI models. With Requesty, you can:

  • Access 150+ models through a unified API

  • Quickly switch between providers without changing your code

  • Try specialized models for specific tasks (coding, creative writing, reasoning)

  • Eliminate the complexity of juggling multiple API keys and endpoints

As one developer put it: "Before Requesty, I was managing five different API keys with five different billing accounts. Now everything runs through one unified system—it's been a game-changer for our team."

2. Smart Routing: Let AI Choose the Best Model

Our new Smart Routing feature automatically detects what your request is about and directs it to the optimal model. This helps you:

  • Save time by eliminating manual model selection

  • Reduce costs by routing to appropriate models based on task complexity

  • Improve reliability by avoiding models that struggle with specific request types

  • Overcome rate limits by intelligently distributing requests

For example, when you need copywriting help, Smart Routing might select Claude. For complex programming tasks, it might route to DeepSeek-R1. You focus on building your application while Requesty handles the optimal model selection behind the scenes.

3. Automatic Fallbacks: Never Worry About Downtime

AI providers occasionally experience downtime or rate limiting—but your application shouldn't suffer as a result. Requesty's fallback policies ensure:

  • Seamless transition to backup models if your primary choice fails

  • Customizable fallback order based on your priorities (cost, speed, quality)

  • Instant failover without developer intervention

  • Zero downtime for your AI applications

Set up a policy once (e.g., "Try DeepSeek first, then Claude, then Nebius") and never worry about model availability again. Your users experience consistent performance while you avoid the headache of handling failovers manually.

4. Cost Optimization Features That Save Real Money

AI tokens add up quickly, especially when building production applications. Requesty includes several built-in optimizations:

  • System Prompt Optimization: Automatically trim unnecessary tokens from system prompts, reducing input costs by up to 30%

  • Intelligent Caching: Store and reuse responses for similar queries, cutting redundant API calls

  • Token Usage Analytics: Track exactly where your tokens are going and identify optimization opportunities

  • Model Selection Based on Cost Efficiency: Automatically route to more cost-effective models for appropriate tasks

One customer reported: "After implementing Requesty's optimizations, our monthly AI costs dropped by 42% while maintaining the same quality of responses. The system prompt optimization alone saved us thousands."

Real-World Implementation: Integrating Requesty with Popular Tools

Supercharging Cline with Requesty

If you're using Cline as your coding assistant, connecting it to Requesty is straightforward:

  1. Sign up at app.requesty.ai

  2. Create an API key in the Requesty dashboard

  3. Add the key to Cline settings

  4. Start coding with access to 150+ AI models and automatic fallbacks

This integration gives you the best of both worlds: Cline's excellent coding interface with Requesty's model selection, fallbacks, and cost optimizations.

Customizing Your System Prompt Through the UI

Fine-tuning your AI interface is critical for getting consistent, high-quality responses. Requesty now allows you to:

  1. Modify system prompts directly through the UI—no code changes required

  2. Test different prompts to see which produces better results

  3. Save multiple prompt templates for different use cases

  4. Implement role-based prompts (e.g., "You are an expert Python developer")

This flexibility helps you quickly iterate on your AI's behavior without diving into configuration files or code.

Getting Started with Requesty

Ready to build more reliable AI applications while cutting costs? Here's how to get started:

  1. Sign up at app.requesty.ai

  2. Create an API key in the dashboard

  3. Integrate with your existing tools or use our direct API

  4. Set up fallback policies for maximum reliability

  5. Enable optimizations to start saving on token costs

Plus, new users get $6 in free credits to test the platform—more than enough to see the benefits firsthand.

The Future of AI Development

As AI agents become increasingly central to modern applications, the tools we use to build and manage them must evolve. Requesty represents the next generation of AI infrastructure—focused on reliability, cost-effectiveness, and developer experience.

Whether you're building an AI chat app, implementing AI programming features, or exploring machine learning applications, having a solid foundation like Requesty can be the difference between a project that struggles with reliability issues and one that scales smoothly.

Join the Community

We're building Requesty alongside a growing community of AI developers. Join our Discord to share experiences, get implementation advice, and help shape the future of our platform.