AI Observly
Free tool · No sign-up required

The LLM Spend Analyzer

Upload your Claude or OpenAI billing export — or add both the cost file and the usage/token file for the full picture.

Cost / Billing exportCost file

Drop file or click to browse

the file with dollar amounts

Usage / Token exportOptional

Drop file or click to browse

input/output token counts — unlocks full token detail

Don't have this? You'll still get a spend breakdown from the Cost file alone.

CSV files are processed entirely in your browser and never uploaded. PDFs are sent to our server only for text extraction, then discarded immediately. Only the report you choose to email is sent, and only to the address you provide.