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Cloud · head to head

Portworx vs PromptLayer

Portworx logo

Portworx

Cloud

Kubernetes-native storage and data services, priced by the node hour

From
$0.33/node hour
Free plan
No
Full reviewWebsite
PromptLayer logo

PromptLayer

AI

Collaboration platform for prompt management, evaluation, and observability

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only PromptLayer has a free tier, so it costs nothing to try first.
  • Each has a real cost: Portworx bare metal nodes are charged at 1.11 USD per node hour against 0.33 for virtual nodes, so a bare metal cluster costs more than three times a virtualised one for identical capability.; PromptLayer the free plan is capped at only 2,500 requests per month, quite limited for active production use.
  • They diverge on capability: Portworx covers Container-native volumes, PromptLayer covers Visual prompt management.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Portworx and PromptLayer actually diverge.

Attributes where Portworx and PromptLayer differ
AttributePortworxPromptLayer
Starting price$0.33/node hourFree
Pricing modelPer node hourfreemium
Free tierNoYes
PlatformsLinuxweb, api
CategoryCloudAI

Identical on both: 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 Portworx

  • Container-native volumes
  • Failure domain placement
  • Volume encryption
  • Database automation
  • Disaster recovery
  • Autopilot capacity management
  • Hardware independence

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.

Portworx

  • Running a production PostgreSQL or Cassandra cluster on Kubernetes and needing the data to survive node lossnot PromptLayer
  • A platform team offering self-service databases to developers on an internal Kubernetes platformnot PromptLayer
  • Failing over stateful applications between clusters in different regions as a disaster recovery positionnot PromptLayer
  • An OpenShift estate where the built-in storage option does not meet the availability requirement for stateful setsnot PromptLayer

PromptLayer

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

Where each one falls short

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

Portworx

  • Bare metal nodes are charged at 1.11 USD per node hour against 0.33 for virtual nodes, so a bare metal cluster costs more than three times a virtualised one for identical capability.
  • A 1,000 node hour monthly minimum applies, which means small or intermittent clusters pay for capacity they do not consume.
  • Replicating volumes across nodes consumes real capacity and network bandwidth, so the underlying infrastructure cost rises alongside the licence in a way the node hour rate does not show.
  • Pure Storage ownership means roadmap priorities are set by an array vendor, and buyers should confirm that hardware independence remains contractual rather than assumed.
  • Operating it well requires Kubernetes storage expertise, and teams that adopted Kubernetes to simplify operations often find they have added a distributed storage system to run.

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

Portworx

$0.33/node hour
  • Portworx Enterprise on virtual machine nodes$0.33/node hour
    • Minimum 1,000 node hours per month
    • Replicated persistent volumes
    • Encryption and disaster recovery
  • Portworx Enterprise on bare metal nodes$1.11/node hour
    • Minimum 1,000 node hours per month
    • Same capabilities on bare metal clusters
    • Higher rate reflects node density

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 Portworx if

  • You need container-native volumes.
  • You work on Linux.
  • You also want failure domain placement.
Portworx 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 Portworx or PromptLayer better?
Neither clearly leads. Portworx starts at $0.33/node hour and PromptLayer at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Portworx or PromptLayer?
PromptLayer has a free tier; the other does not. Paid plans start at $0.33/node hour for Portworx and Free for PromptLayer.
Does Portworx or PromptLayer run on more platforms?
Portworx runs on Linux. PromptLayer runs on web, api.
Can I use PromptLayer for free?
Yes. PromptLayer has a free tier, so you can try it without paying. Portworx starts at $0.33/node hour.
What is Portworx best used for?
Portworx is most often used for running a production postgresql or cassandra cluster on kubernetes and needing the data to survive node loss, a platform team offering self-service databases to developers on an internal kubernetes platform, failing over stateful applications between clusters in different regions as a disaster recovery position, an openshift estate where the built-in storage option does not meet the availability requirement for stateful sets. Of those, running a production postgresql or cassandra cluster on kubernetes and needing the data to survive node loss and a platform team offering self-service databases to developers on an internal kubernetes platform are not what PromptLayer is typically brought in for.
What can Portworx do that PromptLayer cannot?
Portworx covers Container-native volumes, Failure domain placement, Volume encryption, Database automation. PromptLayer covers Visual prompt management, Agent observability, Evaluations, Version control.

Answered from the vendors’ own pages

Portworx: Is Portworx tied to Pure Storage hardware?

No. It runs on any Kubernetes distribution over any underlying storage, though Pure has owned it since 2020 and sets the roadmap.

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
Portworx: What does a real cluster cost?

At 0.33 USD per virtual node hour, twenty nodes running continuously is roughly 4,800 USD a month. Bare metal at 1.11 USD per node hour is around 16,000 USD for the same node count.

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
Portworx: Is backup included?

No. Portworx Backup is a separately priced product covering Kubernetes application backup.

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
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