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Flagsmith vs Humanloop

Flagsmith logo

Flagsmith

Software

Open-source feature flag and remote config platform

From
Free
Rated
-
Full reviewWebsite
H

Humanloop

Software

The LLM evals platform for enterprises

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Flagsmith the Free plan supports only a single team member, limiting collaboration for small teams.; Humanloop the free plan caps at 2 members, 50 eval runs, and 10,000 logs per month; every tier above that requires contacting sales, with no self-serve paid plan published, as of August 2026.

Where they differ

Only the attributes on which Flagsmith and Humanloop actually diverge.

Attributes where Flagsmith and Humanloop differ
AttributeFlagsmithHumanloop
Platformsweb, apiWeb

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Flagsmith

  • Feature flags
  • Segments
  • A/B testing
  • Scheduled flags
  • SDKs
  • SAML/SSO

Only in Humanloop

Nothing recorded that Flagsmith does not also cover.

What people use each for

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

Flagsmith

  • Gradual feature rollouts across environmentsnot Humanloop
  • Remote configuration without redeploying codenot Humanloop
  • Running A/B tests tied to feature flagsnot Humanloop
  • Self-hosting feature flags for data residency requirementsnot Humanloop

Humanloop

No use cases recorded yet. See the Humanloop review.

Where each one falls short

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

Flagsmith

  • The Free plan supports only a single team member, limiting collaboration for small teams.
  • Exceeding request limits triggers overage charges after a one-time 30-day grace period.
  • Enterprise-grade SSO and governance are locked behind the Scale-Up and Enterprise tiers.
  • Self-hosting requires operating and updating the platform yourself, unlike a fully managed SaaS competitor.

Humanloop

  • The free plan caps at 2 members, 50 eval runs, and 10,000 logs per month; every tier above that requires contacting sales, with no self-serve paid plan published, as of August 2026.

Pricing, plan by plan

Flagsmith

Free
  • FreeFree
    • Up to 50,000 requests/month
    • 1 team member
    • Unlimited feature flags, environments, identities and segments
  • Start-Up$45/month
    • Up to 1,000,000 requests/month
    • 3 team members
    • Scheduled flags, 2FA, A/B testing, integrations, email support
  • Scale-Up$300/month
    • 5,000,000+ requests/month
    • 5-20 team members
    • SAML/SSO, governance features, priority support

Humanloop

Free

No published plan breakdown. See the Humanloop review.

Which should you pick?

Choose Flagsmith if

  • You need feature flags.
  • You want to start without paying.
  • You work on web, api.
  • You also want segments.
Flagsmith review

Choose Humanloop if

  • You want to start without paying.
Humanloop review

Questions people ask

Is Flagsmith or Humanloop better?
Neither clearly leads. Flagsmith starts at Free and Humanloop at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flagsmith or Humanloop?
Flagsmith starts at Free and Humanloop at Free.
Does Flagsmith or Humanloop run on more platforms?
Flagsmith runs on web, api. Humanloop runs on Web.
Can I use Flagsmith for free?
Both have a free tier, so you can try either at no cost before committing.
What is Flagsmith best used for?
Flagsmith is most often used for gradual feature rollouts across environments, remote configuration without redeploying code, running a/b tests tied to feature flags, self-hosting feature flags for data residency requirements. Of those, gradual feature rollouts across environments and remote configuration without redeploying code are not what Humanloop is typically brought in for.
What can Flagsmith do that Humanloop cannot?
Flagsmith covers Feature flags, Segments, A/B testing, Scheduled flags.

Answered from the vendors’ own pages

Flagsmith: What does Flagsmith cost?

Flagsmith has a Free plan, a Start-Up plan from $40-45/month, a Scale-Up plan from $250-300/month, and custom Enterprise pricing.

Source
Flagsmith: Is there a free plan, and what are its limits?

The Free plan supports up to 50,000 requests per month and 1 team member, with unlimited feature flags, environments, identities and segments.

Source
Flagsmith: How is usage metered?

Usage is metered by monthly API requests; exceeding a plan's limit triggers overage charges starting around $50 per million requests, with a 30-day grace period the first time a paid plan exceeds its limit.

Source
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