Choose Langfuse if you need
- A lower starting price. Langfuse Core is $29 and Portkey Production is $49, both per month.
- Integration with LiteLLM, OpenRouter or PostHog. We haven't found them on Portkey's website.
At a glance
- Both have a free plan.
- Langfuse's lowest paid plan is Core at $29 per month, as of November 14, 2026.
- Portkey's lowest paid plan is Production at $49 per month, as of November 14, 2026.
- Both work with OpenAI, LangChain and Anthropic.
- Both list SOC 2, ISO 27001, GDPR, HIPAA and SSO.
- Both have a public API.
- Langfuse can be self-hosted. We haven't confirmed that for Portkey.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Portkey if you need
- Integration with MongoDB or CrewAI. We haven't found them on Langfuse's website.
Langfuse
Nobody has reviewed Langfuse yet. Its rating shows once it has 3 reviews.
Review Langfuse
Portkey
Nobody has reviewed Portkey yet. Its rating shows once it has 3 reviews.
Review PortkeyThe facts
- What it does
- LangfuseTrace, evaluate, and improve AI agents with one open platform.
- PortkeyAI gateway and observability for AI teams.
- Free plan
- LangfuseYes
- PortkeyYes
- Pricing
- LangfuseNot confirmed
- PortkeyNot confirmed
- Paid plans from
- LangfuseCore: $29 per month
What they share
From the platforms and integrations each website lists.
Integrations
Both
- OpenAI
- LangChain
- Anthropic
Only Langfuse
- LiteLLM
- OpenRouter
- PostHog
Only Portkey
- MongoDB
- CrewAI
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Langfuse and Portkey yet.
Used either of them?
Your review makes this comparison better for the next person. Review Langfuse or review Portkey.