200 Lines of TypeScript That Cut My AI Bill by 41%

When your AI bill grows faster than your project traffic, it's a red flag. One developer from the Dev.to community found an elegant fix: 200 lines of TypeScript that cut costs by 41%.

How It Works

He built an AI router that analyzes each request and routes it to the most cost-effective model — cheap for simple tasks, premium only when needed. No overhead, no vendor lock-in.

Key features:

• Multi-provider support (OpenAI, Anthropic, Google, etc.)
• Automatic model selection based on request complexity
• Lightweight integration — just 200 lines

Result: a 41% drop in monthly spending with no quality loss. In fact, simple queries got faster responses from lighter models, improving overall speed.

METABYTE studio comment: A smart approach for anyone looking to optimize AI costs without sacrificing performance. We apply similar routing strategies in our projects — it saves money and keeps things running smoothly.