What happened in Jan that caused us to switch to variable API usage billing? <img src="https://uploads.linear.app/ed5193d7-27ef-4be2-b461-c7791d75bc4f/0fe14d47-c9c6-43c1-a12d-383e5890dadb/266ff9e0-a981-4713-80e1-c8bde625bd0b?signature=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwYXRoIjoiL2VkNTE5M2Q3LTI3ZWYtNGJlMi1iNDYxLWM3NzkxZDc1YmM0Zi8wZmUxNGQ0Ny1jOWM2LTQzYzEtYTEyZC0zODNlNTg5MGRhZGIvMjY2ZmY5ZTAtYTk4MS00NzEzLTgwZTEtYzhiZGU2MjViZDBiIiwiaWF0IjoxNzc0MzExNDQ0LCJleHAiOjE4MDU4ODIwMDR9.bB8MYOLgoSAIotFqbvc3REjubbE6fyrSKCSoNS7fMVk " alt="Screenshot 2026-03-24 at 11.12.41 am.png" width="566" data-linear-height="385" /> <img src="https://uploads.linear.app/ed5193d7-27ef-4be2-b461-c7791d75bc4f/6b8d0055-d941-4311-ab4b-ea244301497e/2be390e8-b08c-4b8a-9693-7c3ff537dc60?signature=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwYXRoIjoiL2VkNTE5M2Q3LTI3ZWYtNGJlMi1iNDYxLWM3NzkxZDc1YmM0Zi82YjhkMDA1NS1kOTQxLTQzMTEtYWI0Yi1lYTI0NDMwMTQ5N2UvMmJlMzkwZTgtYjA4Yy00YjhhLTk2OTMtN2MzZmY1MzdkYzYwIiwiaWF0IjoxNzc0MzExNDQ0LCJleHAiOjE4MDU4ODIwMDR9.ODf2rcTqPSJwFkP7LZrhaGdl-OuAY3fVGRMwguHaxBI " alt="Screenshot 2026-03-24 at 11.13.08 am.png" width="2303" data-linear-height="1208" />
What happened in Jan that caused us to switch to variable API usage billing?