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Langfuse vs PromptLayer

Our take

Pick Langfuse if teams shipping LLM apps who need traces and a cost tile, not another chat UI. Pick PromptLayer if aI teams who will pay Pro or Team so more than 10 playground runs a day and 2.5k requests sit on a shared registry. Skip Langfuse if people who only want a gateway (LiteLLM) or a framework (LangChain) without an observability SKU.

Langfuse

Langfuse

LLM observability dashboard

Best for

Langfuse Debug and cost-track generations

PromptLayer Ship prompts without a redeploy

Free plan

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

PromptLayer $0 · /month. 5 users; 2.5k requests / month; 1 workspace; 250 eval cell executions / month; 10 playground runs / day; 10MB max dataset; 750 agent node executions / month. SaaS

Lowest paid

Langfuse Enterprise $2/mo

PromptLayer Pro $49/mo

Next step up

Langfuse Core $29/mo

PromptLayer

Coding agent

Langfuse

PromptLayer Agents / workflows

Runs where

Langfuse Local or hosted

PromptLayer

Watch out

Langfuse Hobby is two users and 30-day retention

PromptLayer Free is 2.5k requests and 10 playground runs a day

Last checked

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

PromptLayer 2026-10-22 · promptlayer.com/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 PromptLayer if

aI teams who will pay Pro or Team so more than 10 playground runs a day and 2.5k requests sit on a shared registry.

Read the PromptLayer page

Other comparisons