Hi Product Hunt! 👋 I'm Chaitanya, the solo maker behind Callidus. I built this app to break down paywalls and bring top-tier AI directly to your smartphone. With our latest launch, I’m incredibly excited to offer a multi-model experience completely for free: 💬 Chat: Powered by DeepSeek V4 Flash for ultra-fast, intelligent conversations. 👁️ Vision: Powered by Grok 4.6 to analyze and understand your images. 📄 PDF/Docs: Powered by Mistral OCR 4.0 for flawless document text extraction. And yes, for the power users, the BYOK (Bring Your Own Key) feature is still here, giving you total freedom over your API usage. I built Callidus to be the only AI app you need on your phone. I'd love for you to try it out and let me know your thoughts. What other models or tools would you like to see next?

Shelteric Callidus

Ultimate mobile AI companion for text, vision & BYOK.

Ultimate mobile AI companion for text, vision & BYOK.