Marko Milojkovic

Marko Milojkovic

Startup and product studio founder
All activity
Test AI Models is the only platform that lets you test YOUR actual prompts across multiple AI models simultaneously with zero setup. Unlike generic benchmarks, API routers, or Reddit rabbit holes, we show real-time quality, speed, and cost comparisons - so you can choose the winner before writing a single line of code. No API keys, no 24-hour setup, no guessing. Just paste your prompt and get answers in 30 seconds. We solve pre-deployment model decision for your AI apps, automations or agents.
Test AI Models
Test AI ModelsCompare AI models side-by-side on same prompt
Marko Milojkovicstarted a discussion

What's the biggest API cost difference you've found between LLMs?

Hey guys, I built Test AI Models because I kept seeing wild cost variations for similar quality outputs on ChatGPT, Grok, DeepSeek and others. Biggest one I've found so far for customer support case (images bellow): ChatGPT: $6.654 cost for 1 mil queries Claude: $4.947 cost for 1 mil queries DeepSeek: $79 cost for 1 mil queries Grok: $245 cost for 1 mil queries In my mind they are similar...