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Databases · head to head

Solace PubSub+ vs WarpBuild

Solace PubSub+ logo

Solace PubSub+

Databases

Multi-protocol event broker sold as software, cloud service or a hardware appliance

From
Free
Free plan
Yes
Visit Solace PubSub+Full review
WarpBuild logo

WarpBuild

Developer Tools

2x faster, 50% cheaper GitHub Actions runners

From
On request
Free plan
No
Visit WarpBuildFull review

The short version

  • WarpBuild is a GitHub Actions runner service.
  • Solace PubSub+ is free; WarpBuild starts at $0.002/mo.
  • Only Solace PubSub+ lists dynamic message routing; only WarpBuild lists optimized runner infrastructure.
  • Where WarpBuild falls short: per-minute pricing requires tracking usage to estimate monthly costs.
  • Prices and features on this page were last checked on 31 August 2026.

Where they differ

Only the attributes on which Solace PubSub+ and WarpBuild actually diverge.

Attributes where Solace PubSub+ and WarpBuild differ
AttributeSolace PubSub+WarpBuild
Starting priceFreeOn request
Pricing modelQuoteUsage-based per minute, varies by runner configuration
Free tierYesNo
PlatformsLinux, Self-hosted, Web, Hardware applianceGitHub Actions, Linux, Windows, macOS, Web
CategoryDatabasesDeveloper Tools

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 Solace PubSub+

  • Multi-protocol broker
  • Dynamic message routing
  • Hardware appliance
  • Event Portal
  • Guaranteed delivery
  • Mission Control
  • Topic hierarchies and wildcards
  • Kafka and MQ bridging

Only in WarpBuild

  • Optimized runner infrastructure
  • Intelligent caching
  • Incremental builds
  • Multi-architecture support
  • Unlimited concurrency
  • Autoscaling
  • BYOC support
  • Docker builders

What people use each for

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

Solace PubSub+

  • A bank building an event mesh across regions where a Java JMS application and an MQTT mobile client must share the same topic spacenot WarpBuild
  • An exchange or trading platform with a latency budget that needs the hardware appliance rather than a software brokernot WarpBuild
  • An airline distributing operational events to ground systems, aircraft and partner APIs over different protocolsnot WarpBuild
  • A manufacturer bridging factory MQTT telemetry into an enterprise Kafka estate without writing translation servicesnot WarpBuild

WarpBuild

  • Accelerating CI builds for teams with high test volumesnot Solace PubSub+
  • Running tests generated by AI coding assistants efficientlynot Solace PubSub+
  • Reducing GitHub Actions costs by 50% or morenot Solace PubSub+
  • Supporting teams that need ARM64 architecture runnersnot Solace PubSub+

Where each one falls short

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

Solace PubSub+

  • No pricing is published at any tier, so evaluation requires a sales engagement before you can even judge whether it is in budget, and broker tier sizing determines cost in ways buyers frequently get wrong
  • The free Standard edition has hard capacity and support limits, which makes it useful for development but means any real deployment triggers a commercial negotiation
  • The proprietary SMF protocol gives the best performance and feature coverage, so teams that lean on it acquire real switching costs even though open protocols are supported
  • Operating a self-managed high availability broker pair with disaster recovery is a specialist task, and Solace expertise is scarce in the hiring market compared with Kafka skills
  • Event Portal and Mission Control are licensed as part of platform packages, so the governance tooling that makes an event mesh manageable is not simply included with the broker

WarpBuild

  • Per-minute pricing requires tracking usage to estimate monthly costs
  • Large configuration runners (32 vCPU) expensive at $0.064/min
  • macOS M4 Pro 12-core at $0.16/min is highest-cost option
  • BYOC option requires cloud setup by customer

Pricing, plan by plan

Solace PubSub+

Free
  • Software Event Broker StandardFree
    • Free for production within capacity limits
    • Single node, capped connections and queues
    • No vendor support
  • Solace CloudOn request
    • Managed brokers in tiers from ENT-250 to ENT-100K
    • Foundation, Accelerate and Scale platform packages
    • Fixed subscription or annual consumption drawdown
  • Software Enterprise self-managedOn request
    • Deploy in your own Kubernetes, VMs or data centre
    • High availability and disaster recovery
    • Support with SLA
  • Hardware applianceOn request
    • Purpose-built appliance with FPGA message offload
    • Deterministic low latency
    • Sold with support contract

WarpBuild

On request
  • Linux x86-64 (2vCPU, 8GB)$0.004/minute
    • 2 vCPU
    • 8 GB RAM
    • Standard performance
  • Linux x86-64 (4vCPU, 16GB)$0.008/minute
    • 4 vCPU
    • 16 GB RAM
    • Increased performance
  • Linux x86-64 (8vCPU, 32GB)$0.016/minute
    • 8 vCPU
    • 32 GB RAM
    • High performance
  • Linux x86-64 (16vCPU, 64GB)$0.032/minute
    • 16 vCPU
    • 64 GB RAM
    • Enterprise performance

Which should you pick?

Choose Solace PubSub+ if

  • You need multi-protocol broker.
  • You want to start without paying.
  • You work on Linux, Self-hosted, Web, Hardware appliance.
  • You also want dynamic message routing.
Solace PubSub+ review

Choose WarpBuild if

  • You need optimized runner infrastructure.
  • You work on GitHub Actions, Linux, Windows, macOS, Web.
  • You also want intelligent caching.
WarpBuild review

Questions people ask

Is Solace PubSub+ or WarpBuild better?
Neither clearly leads. Solace PubSub+ starts at Free and WarpBuild at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Solace PubSub+ or WarpBuild?
Solace PubSub+ has a free tier; the other does not. Paid plans start at Free for Solace PubSub+ and On request for WarpBuild.
Does Solace PubSub+ or WarpBuild run on more platforms?
Solace PubSub+ runs on Linux, Self-hosted, Web, Hardware appliance. WarpBuild runs on GitHub Actions, Linux, Windows, macOS, Web.
Can I use Solace PubSub+ for free?
Yes. Solace PubSub+ has a free tier, so you can try it without paying. WarpBuild starts at On request.
What is Solace PubSub+ best used for?
Solace PubSub+ is most often used for a bank building an event mesh across regions where a java jms application and an mqtt mobile client must share the same topic space, an exchange or trading platform with a latency budget that needs the hardware appliance rather than a software broker, an airline distributing operational events to ground systems, aircraft and partner apis over different protocols, a manufacturer bridging factory mqtt telemetry into an enterprise kafka estate without writing translation services. Of those, a bank building an event mesh across regions where a java jms application and an mqtt mobile client must share the same topic space and an exchange or trading platform with a latency budget that needs the hardware appliance rather than a software broker are not what WarpBuild is typically brought in for.
What can Solace PubSub+ do that WarpBuild cannot?
Solace PubSub+ covers Multi-protocol broker, Dynamic message routing, Hardware appliance, Event Portal. WarpBuild covers Optimized runner infrastructure, Intelligent caching, Incremental builds, Multi-architecture support.

Answered from the vendors’ own pages

Solace PubSub+: Is there a free version of Solace?

Yes, the Standard edition of the software event broker is free for production within capacity limits, with no vendor support.

WarpBuild: How much cheaper is WarpBuild compared to GitHub Actions?

WarpBuild offers approximately 50% cost savings compared to GitHub-hosted runners. For example, Linux x86-64 2vCPU/8GB costs $0.004/min with WarpBuild vs $0.008/min with GitHub Actions.

Source
Solace PubSub+: Does Solace publish prices?

No. Cloud, software and appliance are all quoted, based on broker tier from ENT-250 to ENT-100K and licensing model.

WarpBuild: What is BYOC and how does it differ from managed runners?

BYOC (Bring Your Own Cloud) allows customers to run WarpBuild on their own cloud infrastructure at $0.002/min. Managed runners use WarpBuild's cloud infrastructure. BYOC provides lower costs but requires customer setup.

Source
Solace PubSub+: Why buy an appliance in 2026?

Deterministic low latency with message processing offloaded to hardware, which matters in capital markets and little elsewhere.

WarpBuild: Does WarpBuild support ARM64 runners?

Yes, WarpBuild offers ARM64 runners at lower costs than x86-64. Linux ARM64 starts at $0.003/min for 2vCPU/8GB configuration.

Source
Solace PubSub+: Can it replace Kafka?

Not for log retention and stream reprocessing. It is stronger at multi-protocol routing and guaranteed delivery, and the two are often bridged.

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