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Government · head to head

Google Cloud for Government vs Sigstore

Google Cloud for Government logo

Google Cloud for Government

Government

Innovation Cloud for Government

From
Free
Free plan
Yes
Full reviewWebsite
Sigstore logo

Sigstore

Cybersecurity

Free public signing and transparency infrastructure for open source artifacts

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Each has a real cost: Google Cloud for Government the free tier gives new customers $300 in credits, and the 20+ always-free products are capped by monthly usage limits; Sigstore the security model depends on somebody watching the log. The documentation states that compromise of an identity provider or of Fulcio itself is detectable only if third parties monitor the transparency log, the monitoring tool is a community-tier rather than core project, and almost no consumer runs one.
  • They diverge on capability: Google Cloud for Government covers FedRAMP High Authorized, Sigstore covers Fulcio.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Google Cloud for Government and Sigstore actually diverge.

Attributes where Google Cloud for Government and Sigstore differ
AttributeGoogle Cloud for GovernmentSigstore
Pricing modelusage-basedOpen source, public instance free to use
PlatformsWeb, Cli, SdkWeb, Linux, macOS, Windows, Self-hosted
CategoryGovernmentCybersecurity
Founded2008Unknown

Identical on both: starting price (Free), 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 Google Cloud for Government

  • FedRAMP High Authorized
  • Data Analytics
  • Machine Learning
  • Kubernetes
  • Assured Workloads
  • Workspace
  • Chronicle
  • Third-party Tools

Only in Sigstore

  • Fulcio
  • Rekor
  • Keyless signing
  • Multi-language clients
  • Timestamp authority
  • Neutral governance

What people use each for

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

Google Cloud for Government

  • Running public sector workloads on Google Cloud compute and storagenot Sigstore
  • Data analytics and AI for government agenciesnot Sigstore
  • Migrating agency applications off on-premises infrastructurenot Sigstore

Sigstore

  • Open source projects signing releases without running a certificate authoritynot Google Cloud for Government
  • Organisations meeting a signed-artifact requirement without buying a signing productnot Google Cloud for Government
  • Publishing provenance that a consumer can verify independently of younot Google Cloud for Government
  • Self-hosting the same components where a public log is unacceptablenot Google Cloud for Government

Where each one falls short

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

Google Cloud for Government

  • The free tier gives new customers $300 in credits, and the 20+ always-free products are capped by monthly usage limits
  • Pricing is pay as you go and varies by product and usage, so there is no single published rate for the platform
  • Committed use discounts of up to 57% require pre-paying for resources rather than being available on demand
  • Organizations are directed to request a quote rather than being given a published organizational price

Sigstore

  • The security model depends on somebody watching the log. The documentation states that compromise of an identity provider or of Fulcio itself is detectable only if third parties monitor the transparency log, the monitoring tool is a community-tier rather than core project, and almost no consumer runs one.
  • It is a 99.5 percent objective with no service level agreement, which permits several hours of downtime a month and offers no remedy. A pipeline that signs on every build has taken a hard dependency on a free service with no contract behind it.
  • Log scale is a live engineering problem rather than a theoretical one. The active shard holds billions of entries, the log has already been sharded twice, and sharding version 1 requires stopping traffic, which is why a replacement was built.
  • Ten-minute certificates make trust depend on log availability. Verifying an older signature relies on the log entry proving it was made inside that window, so a lost or unreachable entry can render a valid artifact unverifiable.
  • Migration debt is substantial and ongoing. Version 2 of the log is generally available but not the public default, the signing client has an announced breaking release ahead, some official clients lag the new log format, and a post-quantum migration is named as the next break after that.

Pricing, plan by plan

Google Cloud for Government

Free
  • Pay-as-you-goFree
    • Compute Engine
    • Cloud Storage
    • BigQuery

Sigstore

Free
  • Public good instanceFree
    • Free to everyone with no contract
    • 99.5 percent availability objective, not an agreement
    • 100KB cap per attestation upload
  • Self-hostedFree
    • Apache-2.0
    • Run your own Fulcio and Rekor
    • Rekor v2 available for self-hosters

Which should you pick?

Choose Google Cloud for Government if

  • You need fedramp high authorized.
  • You want to start without paying.
  • You work on Web, Cli, Sdk.
  • You also want data analytics.
Google Cloud for Government review

Choose Sigstore if

  • You need fulcio.
  • You want to start without paying.
  • You work on Web, Linux, macOS, Windows, Self-hosted.
  • You also want rekor.
Sigstore review

Questions people ask

Is Google Cloud for Government or Sigstore better?
Neither clearly leads. Google Cloud for Government starts at Free and Sigstore at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Google Cloud for Government or Sigstore?
Google Cloud for Government starts at Free and Sigstore at Free.
Does Google Cloud for Government or Sigstore run on more platforms?
Google Cloud for Government runs on Web, Cli, Sdk. Sigstore runs on Web, Linux, macOS, Windows, Self-hosted.
Can I use Google Cloud for Government for free?
Both have a free tier, so you can try either at no cost before committing.
What is Google Cloud for Government best used for?
Google Cloud for Government is most often used for running public sector workloads on google cloud compute and storage, data analytics and ai for government agencies, migrating agency applications off on-premises infrastructure. Of those, running public sector workloads on google cloud compute and storage and data analytics and ai for government agencies are not what Sigstore is typically brought in for.
What can Google Cloud for Government do that Sigstore cannot?
Google Cloud for Government covers FedRAMP High Authorized, Data Analytics, Machine Learning, Kubernetes. Sigstore covers Fulcio, Rekor, Keyless signing, Multi-language clients.

Answered from the vendors’ own pages

Sigstore: Is the public instance really free?

Yes, with no contract and no paid tier. That is also the weakness: a 99.5 percent objective with no agreement, no remedy and support through Slack.

Sigstore: Has the public log moved to Rekor v2?

No. Version 2 reached general availability in October 2025 and self-hosters can use it, but the public instance still defaults to version 1 and the project has said it will for the foreseeable future.

Sigstore: Does Sigstore make my dependencies safe?

No, and this is a category error worth avoiding. It tells you who published something. It has no knowledge of what the artifact contains or whether it is vulnerable.

Sigstore: What are the rate limits?

Not published. Only the 100KB cap per attestation upload is documented, so do not design a high-volume pipeline around assumed throughput.

Sigstore: Should we self-host it?

If a public record of every signature is unacceptable, or if a free service with no agreement cannot sit in your build path, then yes. Otherwise the public instance is what most projects use.

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