Been building voice AI agents and kept having to manually calculate per-minute costs across different STT/TTS/LLM/etc providers and components every time. Finally got annoyed enough to build a proper calculator.

It lets you adjust parameters (talk time, context length, call duration) and see how costs change across different provider combinations.

Added explanations below the tool about how each component works and what typical pricing looks like.

Still planning to add more realistic platform pricing since VAPI, Bland AI etc. have their own markup models on top of the base provider costs.

Would love feedback on what would make this more useful!