FRENES

LLMOps and observability

Cleanlab: review, pricing, data and alternatives

Cleanlab serves users checking datasets and AI applications. It identifies data errors, corrects assigned labels, evaluates the reliability of model responses, and monitors failures in applications that use AI. A free tier exists. Access and transparency score: 48/100, #15 of 18 in its category.

Free tierAPIHosting not disclosed

What is Cleanlab?

Cleanlab serves users checking datasets and AI applications. It identifies data errors, corrects assigned labels, evaluates the reliability of model responses, and monitors failures in applications that use AI.

According to its documentation, Cleanlab lets you:

  • identify errors in datasets
  • correct labels assigned to data
  • evaluate the reliability of model responses
  • monitor failures in AI applications

We file it under LLMOps and observability, the category of tools to evaluate, monitor and debug AI apps, and it also overlaps with data science and machine learning. The category lists 18 verified tools on this site.

The publisher is Stryder Corp. d/b/a Handshake, based in United States.

Who is it for?

It is mostly useful to these profiles: developers, data analysts, and researchers. The need it covers is simple to state: evaluate, monitor and debug AI apps.

Cleanlab is a good candidate if:

  • you want to try before paying
  • you plan to connect it to your tools or automations through its API

The best test is a concrete case from your daily work: if the tool does not beat your current method within a week, move on to an alternative.

How much does Cleanlab cost?

Pricing model: freemium (limited free use, then paid). A free plan is offered, usually limited in volume or features.

The entry price is not shown publicly: you have to contact the publisher or create an account to see it.

To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.

Data and privacy

The publisher does not clearly state where data is hosted. Assume your content may leave your region.

For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.

Exporting your content: CSV. Being able to get your data back makes switching tools easier later.

Three habits apply to every AI tool:

  • turn off the use of your content for training if the option exists
  • use a work account separate from your personal account
  • review everything the tool produces before publishing or sending it

Platforms, languages and API

Cleanlab runs on: web browser and API.

Interface languages: English.

A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.

How we scored it

Our 48/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.

Cleanlab score breakdown
CriterionPointsWhat counts
Access15/30free tier, published price, French interface
Openness20/30API, data export, open code
Trust13/40identified publisher, declared hosting, age, presence in reference lists
LangfuseLangfuse : 9595LangSmithLangSmith : 8585OpikOpik : 8383Arize PhoenixArize Phoenix : 8181OvermindOvermind : 7878MLflowMLflow : 7878RespanRespan : 7171Prisma AIRS AI Gateway — PortkeyPrisma AIRS AI Gateway — Portkey : 7171LunaryLunary : 6868TruLensTruLens : 6868CleanlabCleanlab : 4848
Cleanlab ranks #15 of 18. The category's top ten are shown.

The full calculation is explained on our method page.

Comparison with alternatives

Cleanlab against other tools in the lLMOps and observability category:

Comparison within the category
ToolFreeEntry priceAPIScore
CleanlabYesnot publishedYes48
LangfuseYes$29 per monthYes95
LangSmithYes$39 per monthYes85
OpikYes$19 per monthYes83
Arize PhoenixYesnot publishedYes81
OvermindYes$120 per monthYes78
MLflowYesnot publishedYes78
RespanYes$199 per monthYes71

Verdict

Cleanlab publishes little verifiable information: look at the better-scored alternatives first.

Strengths

  • Free tier to try it
  • Public API

Limitations

  • Price not published
  • Data hosting not disclosed

Avoid if…

  • You handle sensitive personal data without a processing agreement

Frequently asked questions

Is Cleanlab free?

Yes, a free plan exists, with usage limits.

Where is Cleanlab data stored?

The publisher does not clearly say so in its public documentation.

Does Cleanlab have an API?

Yes, a public API is documented.

What are the alternatives to Cleanlab?

In the same category: Langfuse, LangSmith, Opik, and Arize Phoenix.

Cleanlab or Langfuse: which one to choose?

Our score is 48/100 for Cleanlab and 95/100 for Langfuse. Try both on the same task before paying.

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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score