Is Humanloop or PromptLayer better?

Neither clearly leads. Humanloop starts at Free and PromptLayer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Humanloop or PromptLayer?

Humanloop starts at Free and PromptLayer at Free.

Does Humanloop or PromptLayer run on more platforms?

Humanloop runs on Web. PromptLayer runs on web, api.

Can I use Humanloop for free?

Both have a free tier, so you can try either at no cost before committing.

What can Humanloop do that PromptLayer cannot?

PromptLayer covers Visual prompt management, Agent observability, Evaluations, Version control.

Software Development · head to head

Humanloop vs PromptLayer

Humanloop

Software Development

The LLM evals platform for enterprises

From: Free
Rated: -

Full review Website

PromptLayer

AI Tools

Collaboration platform for prompt management, evaluation, and observability

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: 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.; PromptLayer the free plan is capped at only 2,500 requests per month, quite limited for active production use.

Where they differ

Only the attributes on which Humanloop and PromptLayer actually diverge.

Attributes where Humanloop and PromptLayer differ
Attribute	Humanloop	PromptLayer
Platforms	Web	web, api
Category	Software Development	AI Tools

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

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 Humanloop

Nothing recorded that PromptLayer does not also cover.

Only in PromptLayer

Visual prompt management
Agent observability
Evaluations
Version control
Cost and latency monitoring
Agent workflow tracing

What people use each for

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

Humanloop

No use cases recorded yet. See the Humanloop review.

PromptLayer

Versioning and deploying prompts without code redeploysnot Humanloop
Running evaluations with human review before production releasenot Humanloop
Tracing multi-step agent workflows for debuggingnot Humanloop
Monitoring LLM cost and latency by featurenot Humanloop

Where each one falls short

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

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.

PromptLayer

The free plan is capped at only 2,500 requests per month, quite limited for active production use.
The Team plan jumps to $500/month, a large step up from the $49/month Pro plan.
Overage transaction fees apply on top of subscription costs, which can make total spend less predictable.
Enterprise-grade features like HIPAA BAAs and custom deployment require contacting sales.

Pricing, plan by plan

Humanloop

Free

No published plan breakdown. See the Humanloop review.

PromptLayer

Free

FreeFree
- 5 users
- 2,500 requests/month
- 1 workspace
Pro$49/month
- Unlimited playgrounds and workspaces
- 150MB datasets
- Pay-as-you-go overage at $0.003/transaction
Team$500/month
- 25 users
- 100k+ monthly requests
- Webhooks
Enterprise$undefined/mo
- Custom limits
- Role-based access controls
- HIPAA with BAA

Which should you pick?

Choose Humanloop if

You want to start without paying.

Humanloop review

Choose PromptLayer if

You need visual prompt management.
You want to start without paying.
You work on web, api.
You also want agent observability.

PromptLayer review

Questions people ask

Is Humanloop or PromptLayer better?: Neither clearly leads. Humanloop starts at Free and PromptLayer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Humanloop or PromptLayer?: Humanloop starts at Free and PromptLayer at Free.
Does Humanloop or PromptLayer run on more platforms?: Humanloop runs on Web. PromptLayer runs on web, api.
Can I use Humanloop for free?: Both have a free tier, so you can try either at no cost before committing.
What can Humanloop do that PromptLayer cannot?: PromptLayer covers Visual prompt management, Agent observability, Evaluations, Version control.

Answered from the vendors’ own pages

PromptLayer: What does PromptLayer cost?

PromptLayer has a free plan, a Pro plan at $49/month, a Team plan at $500/month, and custom Enterprise pricing, with additional usage billed per transaction beyond plan limits.

Source

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

The Free plan includes 5 users, 2,500 requests per month, 1 workspace, 250 monthly eval cell executions, and datasets up to 10MB.

Source

PromptLayer: How is usage metered beyond the plan limits?

Additional usage is charged per transaction for requests, agent runs, and evaluation cell runs, at $0.003/transaction on Pro and $0.002/transaction on Team.

Source

Humanloop vs PromptLayer

Humanloop

PromptLayer

The short version

Where they differ

What each one covers

Only in Humanloop

Only in PromptLayer

What people use each for

Humanloop

PromptLayer

Where each one falls short

Humanloop

PromptLayer

Pricing, plan by plan

Humanloop

PromptLayer

Which should you pick?

Choose Humanloop if

Choose PromptLayer if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Humanloop

More on PromptLayer

Keep looking

Other head to heads