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Helicone vs Pydantic Logfire: catalog facts
Helicone	Pydantic Logfire
Freemium Hosted plans start with a 7-day free trial and no credit card; the open-source code can be…	Freemium Free for 10 million spans, logs and metrics per month, no card required; paid plans above…
Web, Self-hosted	Web
Logs and analyses LLM requests in one place Tracks costs across providers	Traces LLM calls alongside API and database activity Built on OpenTelemetry with SQL querying
Recently joined Mintlify, so its roadmap is uncertain Hosted version is a paid service after the trial	Primarily a hosted service requiring an account Self-hosting is offered as an option rather than the default
Self-hosted, Hosted service	Web application, Hosted service
Open source	Closed source
License: Apache-2.0	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.