GPT-Live Hub is an independent planning calculator for real-time voice usage. It estimates API cost from audio minutes or actual token counts, compares published ChatGPT Live plan limits side by side, and explains how ChatGPT subscriptions and API billing differ.
We built GPT-Live Hub because every ChatGPT Live and Realtime API pricing question we had meant opening three different OpenAI docs pages and doing mental math. The calculator estimates what a voice session costs from audio minutes or actual token counts, and compares the published consumer plan limits side by side so you can tell whether a subscription or pay-as-you-go API usage fits your volume. We also keep a developer-facing tracker of the GPT-Live API (release timeline, expected endpoints, pricing signals) at the /gpt-live-api/ page on our site. Feedback on the calculator UX is very welcome.