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Developer Tools · head to head

Blacksmith vs Segment

Blacksmith logo

Blacksmith

Developer Tools

2x faster GitHub Actions with 60% cost savings

From
Free
Free plan
Yes
Full reviewWebsite
Segment logo

Segment

Technology

Customer data platform that unifies your data

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Blacksmith per-minute pricing model requires estimating usage to predict costs; Segment pricing is not transparent; requires sales contact for quotes
  • They diverge on capability: Blacksmith covers Bare metal runners, Segment covers Data collection.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Blacksmith and Segment actually diverge.

Attributes where Blacksmith and Segment differ
AttributeBlacksmithSegment
PlatformsGitHub Actions, Linux, Windows, macOSWeb, API
CategoryDeveloper ToolsTechnology
FoundedUnknown2011

Identical on both: starting price (Free), pricing model (Unknown), 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 Blacksmith

  • Bare metal runners
  • Multiple OS support
  • ARM support
  • Docker layer caching
  • Sticky disks
  • GitHub Actions observability
  • Free tier
  • Static IPs

Only in Segment

  • Data collection
  • Data routing
  • Data warehouse
  • Identity resolution
  • Protocols
  • Privacy portal
  • Functions
  • Replay

What people use each for

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

Blacksmith

  • Replacing GitHub Actions runners with faster, cheaper infrastructurenot Segment
  • Accelerating CI build times for organizations with heavy CI loadnot Segment
  • Reducing cloud spend on GitHub Actions by 60% or morenot Segment
  • Supporting ARM architecture builds without GitHub runnersnot Segment

Segment

  • Customer data unificationnot Blacksmith
  • Marketing attributionnot Blacksmith
  • Product analyticsnot Blacksmith
  • Data governancenot Blacksmith
  • Personalizationnot Blacksmith

Where each one falls short

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

Blacksmith

  • Per-minute pricing model requires estimating usage to predict costs
  • macOS M4 pricing ($0.08/min) is significantly higher than GitHub Actions
  • Docker layer caching and sticky disks are paid add-ons at $0.50/GB/mo
  • Static IP add-on costs $100/IP/mo

Segment

  • Pricing is not transparent; requires sales contact for quotes
  • No lower-tier option for small businesses without contacting sales
  • Custom pricing can be expensive for mid-market companies
  • Now owned by Twilio, which affects long-term independence and focus

Pricing, plan by plan

Blacksmith

Free
  • Ubuntu x64$0.004/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • Ubuntu ARM$0.0025/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • Windows x64$0.008/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads
  • macOS M4$0.08/minute
    • 3,000 free minutes per month
    • 2x faster hardware
    • 4x faster cache downloads

Segment

Free

No published plan breakdown. See the Segment review.

Which should you pick?

Choose Blacksmith if

  • You need bare metal runners.
  • You want to start without paying.
  • You work on GitHub Actions, Linux, Windows, macOS.
  • You also want multiple os support.
Blacksmith review

Choose Segment if

  • You need data collection.
  • You want to start without paying.
  • You work on Web, API.
  • You also want data routing.
Segment review

Questions people ask

Is Blacksmith or Segment better?
Neither clearly leads. Blacksmith starts at Free and Segment at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Blacksmith or Segment?
Blacksmith starts at Free and Segment at Free.
Does Blacksmith or Segment run on more platforms?
Blacksmith runs on GitHub Actions, Linux, Windows, macOS. Segment runs on Web, API.
Can I use Blacksmith for free?
Both have a free tier, so you can try either at no cost before committing.
What is Blacksmith best used for?
Blacksmith is most often used for replacing github actions runners with faster, cheaper infrastructure, accelerating ci build times for organizations with heavy ci load, reducing cloud spend on github actions by 60% or more, supporting arm architecture builds without github runners. Of those, replacing github actions runners with faster, cheaper infrastructure and accelerating ci build times for organizations with heavy ci load are not what Segment is typically brought in for.
What can Blacksmith do that Segment cannot?
Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching. Segment covers Data collection, Data routing, Data warehouse, Identity resolution.

Answered from the vendors’ own pages

Blacksmith: How much do Blacksmith runners cost compared to GitHub Actions?

Blacksmith offers 60-75% cost savings depending on OS. Ubuntu x64 costs $0.004/min vs GitHub at $0.012/min. All plans include 3,000 free minutes monthly.

Source
Segment: Does Segment have a free plan?

Segment uses a freemium model with 10K users included free. Additional users require paid plans based on monthly active users (MTUs), calculated as monthly active users plus anonymous visitors per month.

Source
Blacksmith: Can I use Docker layer caching with Blacksmith?

Yes, Docker layer caching is available as an add-on at $0.50/GB/mo. Managed Docker layer persistence is included with the base service.

Source
Segment: What is Segment's pricing based on?

Segment pricing is based on monthly active users (MTU), which equals your monthly active users plus anonymous visitors. Pricing is customized; contact sales for specific quotes.

Source
Blacksmith: What is the SLA for Enterprise plans?

Enterprise Blacksmith plans include a 99.9% SLA guarantee along with 24/7 priority support, dedicated Slack channels, white-glove onboarding, and CI optimization support.

Source
Segment: What is the difference between Customer Data Pipeline and Customer Data Platform?

Pipeline (Business) focuses on data collection and delivery to 700+ destinations. CDP includes Pipeline plus Unify for unified profiles and Engage for audience orchestration with AI capabilities.

Source
Segment: How many integrations does Segment have?

Segment connects to over 700 destinations, allowing data to be sent to analytics platforms, data warehouses, CRMs, and other business tools.

Source
Segment: Does Segment have SSO and HIPAA compliance?

Yes. Both Pipeline and CDP tiers offer multi-factor authentication, single sign-on (SSO), and HIPAA eligibility for healthcare organizations.

Source
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