Developer Tools · head to head
Blacksmith vs Exa

Blacksmith
Developer Tools
2x faster GitHub Actions with 60% cost savings
- From
- Free
- Free plan
- Yes
The short version
- Blacksmith is a GitHub Actions runner service.
- Free plans on both; paid from $0.004/mo and $7/mo.
- Where Blacksmith falls short: per-minute pricing model requires estimating usage to predict costs.
- Where Exa falls short: usage-based pricing can be unpredictable without volume discounts upfront.
- Prices and features on this page were last checked on 13 November 2026.
Where they differ
Only the attributes on which Blacksmith and Exa actually diverge.
| Attribute | Blacksmith | Exa |
|---|---|---|
| Platforms | GitHub Actions, Linux, Windows, macOS | Web |
| Category | Developer Tools | Business Intelligence |
Identical on both: starting price (Free), free tier (Yes).
Not yet recorded: pricing model for Blacksmith.
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 Exa
Nothing recorded that Blacksmith does not also cover.
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 Exa
- Accelerating CI build times for organizations with heavy CI loadnot Exa
- Reducing cloud spend on GitHub Actions by 60% or morenot Exa
- Supporting ARM architecture builds without GitHub runnersnot Exa
Exa
- Web search and research APIsnot Blacksmith
- Content extraction and analysisnot Blacksmith
- Real-time monitoring and alertsnot 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
Exa
- Usage-based pricing can be unpredictable without volume discounts upfront
- Enterprise customers need to contact sales for custom volume discount plans
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
Exa
Free- Free TierFree
- $20 in free credits (approximately 2,800 searches)
- $10 in monthly credits after first month
- Search$7
- Standard search functionality
- Deep Search$12
- In-depth search results
- Contents$1/per 1000 pages
- Content extraction
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.
Questions people ask
- Is Blacksmith or Exa better?
- Neither clearly leads. Blacksmith starts at Free and Exa at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Blacksmith or Exa?
- Blacksmith starts at Free and Exa at Free.
- Does Blacksmith or Exa run on more platforms?
- Blacksmith runs on GitHub Actions, Linux, Windows, macOS. Exa runs on Web.
- 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 Exa is typically brought in for.
- What can Blacksmith do that Exa cannot?
- Blacksmith covers Bare metal runners, Multiple OS support, ARM support, Docker layer caching.
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.
SourceExa: How much does Exa API cost?
Exa uses pay-as-you-go pricing with no subscription or minimum spend required. Search costs USD$7 per 1000 requests, Deep Search costs USD$12-15 per 1000 requests, and Contents costs USD$1 per 1000 pages. Users load credits and are charged at these published rates.
SourceBlacksmith: 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.
SourceExa: Is there a free tier for Exa?
Yes, new accounts receive USD$20 in free credits (approximately 2,800 searches) plus USD$10 in additional credits every month. This allows developers to test the API before committing to paid usage.
SourceBlacksmith: 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.
SourceExa: What other costs are associated with Exa?
Beyond the main API costs, Exa charges USD$1 per 1000 results beyond the first 10 returned, USD$1 per 1000 pages for AI summaries, and USD$0.10 per Agent Compute Unit for autonomous agent usage. Contact enrichment features cost USD$0.02 per email and USD$0.07 per phone number.
SourceRelated pages
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- Exa vs WarpBuild
- Exa vs Depot
- Exa vs Namespace
- Exa vs Jenkins
- Exa vs Kubernetes
- Exa vs GitLab
- Exa vs Earthly
- Exa vs Nx Cloud
- Exa vs OpsLevel
- Exa vs LaunchDarkly
- Exa vs Terraform
- Exa vs GitHub
- Exa vs GoLand
- Exa vs Hookdeck
- Exa vs Istio
- Exa vs JFrog Artifactory
- Exa vs Nix
- Exa vs Nixpacks
- Exa vs Stripe Dashboard
- Exa vs Geckoboard
- Exa vs Baremetrics
- Exa vs Amazon QuickSight
- Exa vs Klipfolio
- Exa vs ThoughtSpot
- Exa vs Pigment
- Exa vs Cyfe
- Exa vs Deepnote
- Exa vs Evidence
- Exa vs Grow
- Exa vs Lightdash
- Exa vs NetBase Quid
- Exa vs Phocas
- Exa vs Preset
- Exa vs ProfitWell
- Exa vs Quantum Metric
- Exa vs Quid

