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Humanloop vs Keil MDK

Humanloop logo

Humanloop

Software Development

The LLM evals platform for enterprises

From
Free
Rated
-
Full reviewWebsite
Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Humanloop no published pricing for standard plans; customers must contact sales for quotes; Keil MDK pricing for Essential and Professional subscriptions not disclosed on primary site

Where they differ

Only the attributes on which Humanloop and Keil MDK actually diverge.

Attributes where Humanloop and Keil MDK differ
AttributeHumanloopKeil MDK
Pricing modelusage-basedfreemium
CategorySoftware DevelopmentDeveloper Tools

Identical on both: starting price (Free), free tier (Yes), platforms (Web), user rating (Not yet rated).

What people use each for

The jobs each tool is most often brought in to do.

Humanloop

  • LLM prompt management and evaluationnot Keil MDK
  • AI workflow automation and testingnot Keil MDK
  • Model monitoring and logging at scalenot Keil MDK

Keil MDK

  • Embedded software developmentnot Humanloop
  • ARM microcontroller programmingnot Humanloop
  • Professional development environmentsnot Humanloop

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Humanloop

  • No published pricing for standard plans; customers must contact sales for quotes
  • Billing based on logs created per API call, making costs unpredictable without usage estimates
  • Separate charges apply from AI providers (OpenAI, Anthropic, etc.) using customer's own API keys, adding external costs

Keil MDK

  • Pricing for Essential and Professional subscriptions not disclosed on primary site
  • Customers must contact Arm Developer Tools store for subscription rates

Pricing, plan by plan

Humanloop

Free
  • Free TrialFree
    • 2 members
    • 50 evaluation runs
    • 10,000 logs per month
  • Startup Program$null/contact-sales
    • Tailored pricing for early-stage, VC-backed startups
  • Enterprise$null/contact-sales
    • Custom pricing
    • SSO + SAML authentication
    • Role-based access controls

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

Which should you pick?

Choose Humanloop if

  • You want to start without paying.
Humanloop review

Choose Keil MDK if

  • You want to start without paying.
Keil MDK review

Questions people ask

Is Humanloop or Keil MDK better?
Neither clearly leads. Humanloop starts at Free and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Humanloop or Keil MDK?
Humanloop starts at Free and Keil MDK at Free.
Does Humanloop or Keil MDK run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Humanloop for free?
Both have a free tier, so you can try either at no cost before committing.
What is Humanloop best used for?
Humanloop is most often used for llm prompt management and evaluation, ai workflow automation and testing, model monitoring and logging at scale. Of those, llm prompt management and evaluation and ai workflow automation and testing are not what Keil MDK is typically brought in for.

Answered from the vendors’ own pages

Humanloop: How much does Humanloop cost?

Humanloop offers a free trial with 2 members and 10,000 logs per month. Startup program and Enterprise plans require contacting sales for custom pricing based on usage needs.

Source
Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source
Humanloop: What are the limits on Humanloop's free trial plan?

Free trial includes 2 members, 50 evaluation runs, and 10,000 logs per month with access to all features at limited volume.

Source
Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

Source
Humanloop: How is Humanloop usage billed?

Humanloop bills based on logs created per API call to prompts, tools, evaluators, or flows. Separate charges apply from external AI providers like OpenAI and Anthropic using the customer's own API keys.

Source
Humanloop: Does Humanloop offer discounts for nonprofits or academics?

Academic and nonprofit pricing is available upon request, requiring contact with sales for customized rates.

Source
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