Helicone
Hobby plan (free): 10,000 requests a month of LLM observability, 1 GB storage.
Dev Tools
What you get
LLM request logging, monitoring, sessions and a prompt playground for up to 10,000 requests a month.
How to get it
Choose Get started for free on helicone.ai/pricing.
The catch
Logs are kept only 7 days, with one seat and low ingestion and API rate limits.
From the official page · checked Oct 22, 2026