Claude Haiku 4.5 ⚡
I just tested the new Claude Haiku 4.5 model and built two full apps in under 60 seconds.
This model is 2x faster than GPT-4o mini and way cheaper than most competitors.
🎯 What I built in my latest video:
App #1: A complete fitness tracker with weight goals, calorie logging, workout plans, and injury modifications - built in 30 seconds
App #2: A UFC/ONE Championship fighter ranking app with filtering by organization - built in under a minute
Both apps are fully functional. Not placeholders. Real working code.
Here's what makes Haiku 4.5 different:
  • Faster than GPT-4o mini by over 2x
  • Optimized for real-time use cases and multi-agent workflows
  • Way cheaper on input/output token costs
  • Available in Claude Pro or you can use it in n8n and pay per use
The speed is what's crazy to me. You can watch it generate functional code in real-time.
This is the model I'd use for quick prototypes, MVPs, or automations that need fast responses.
Have you tested Haiku 4.5 yet? What are you building with it? 👇
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12 comments
Jordan Lee
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Claude Haiku 4.5 ⚡
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