I Built llm-cost.io on Free Tiers: 400+ LLM API Prices, Updated Daily

Description and use

Built a free, no‑login site llm-cost.io that daily updates 400+ LLM API prices, normalizes them to USD per 1M tokens, and offers comparison tables, a cost calculator, and a bill shredder to streamline model selection.

Problem

AI developers lack a single, up‑to‑date source for LLM pricing, making cost estimation and model selection difficult and time‑consuming.

Outcome

The site runs entirely on free tiers, delivers up‑to‑date pricing, and reduces cost estimation time from hours to minutes, improving product architecture decisions.

Workflow

• 1. Pull pricing data from OpenRouter API daily via GitHub Actions.
• 2. Normalize data to USD per 1M input and output tokens.
• 3. Generate static assets (tables, calculator, bill shredder) with Next.js.
• 4. Deploy static site to Cloudflare Pages.
• 5. Display last‑updated timestamp and handle missing data explicitly.

Evidence

I built llm-cost.io: a free, no-login site that compares 400+ LLM API prices side by side using a single unit: USD per 1M input tokens and USD per 1M output tokens.

Source

Data refresh runs on GitHub Actions once per day.

Source