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Langfuse vs Respan

Our take

Pick Langfuse if you're on a team shipping LLM apps who need traces and a cost tile, not another chat UI. Pick Respan if you're on a team who will stay on Free at $0 (100k logs, 1k scores) while they open a first All logs, then Team at $199/month yearly when they need unlimited prompts or a SOC 2 report. Skip Langfuse if you're people who only want a gateway (LiteLLM) or a framework (LangChain) without an

Langfuse

Langfuse

LLM observability dashboard

Respan

Respan

LLM gateway + logs (ex-Keywords AI). Free

Best for

Langfuse Debug and cost-track generations

Respan One router with a public Free $0 / Team $199

Free plan

Langfuse $0 · for the MIT core. ee/ is not the community license

Respan $0 · full platform. 100k logs. 1k scores. 5 datasets. 2 evaluators. 5 prompts. Gateway 412 req/min. No card

Lowest paid

Langfuse Enterprise $2/mo

Respan Team $199/mo yearly

Next step up

Langfuse Core $29/mo

Respan HIPAA add-on $249/mo

Runs where

Langfuse Local or hosted

Respan Local or hosted

Watch out

Langfuse Hobby is two users and 30-day retention

Respan Team $199 is yearly billing

Last checked

Langfuse 2026-10-19 · langfuse.com/pricing

Respan 2026-10-27 · respan.ai/pricing

Which one, then?

Pick Langfuse if

teams shipping LLM apps who need traces and a cost tile, not another chat UI.

Read the Langfuse page

Pick Respan if

teams who will stay on Free at $0 (100k logs, 1k scores) while they open a first All logs, then Team at $199/month yearly when they need unlimited prompts or a SOC 2 report.

Read the Respan page

Other comparisons