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Cybersecurity · head to head

Arnica vs Fastly

Arnica logo

Arnica

Cybersecurity

AI-native application security platform detecting and fixing vulnerabilities across the SDLC

From
Free
Rated
-
Full reviewWebsite
Fastly logo

Fastly

Cloud

High performance edge computing platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arnica per-identity pricing ($25-$50/person/year) requires tracking active developers; Fastly bandwidth is priced per region, and delivery to India, Africa and South Korea is $0.28 per GB against $0.12 in North America and Europe
  • They diverge on capability: Arnica covers AI SAST, Fastly covers Edge Compute.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Arnica and Fastly actually diverge.

Attributes where Arnica and Fastly differ
AttributeArnicaFastly
Pricing modelPer-identity subscription with annual discountusage-based
PlatformsWeb, GitHub, IDEWeb, Api
CategoryCybersecurityCloud
FoundedUnknown2011

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 Arnica

  • AI SAST
  • Software Composition Analysis
  • Secrets detection
  • IaC scanning
  • Container scanning
  • SBOM generation
  • Agentic rules
  • Pipelineless integration

Only in Fastly

  • Edge Compute
  • CDN
  • DDoS Protection
  • Real-time Analytics
  • Image Optimization
  • Video Streaming
  • API
  • Instant Purge

What people use each for

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

Arnica

  • Detecting AI-generated vulnerabilities in Copilot and Cursor suggestionsnot Fastly
  • Finding hardcoded secrets before they reach productionnot Fastly
  • Mapping container vulnerabilities back to source codenot Fastly
  • Generating SBOM for supply chain compliance requirementsnot Fastly
  • Scanning infrastructure-as-code for misconfiguration risksnot Fastly

Fastly

  • Serving static and dynamic content through a global CDNnot Arnica
  • Running edge logic and caching in front of an origin applicationnot Arnica

Where each one falls short

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

Arnica

  • Per-identity pricing ($25-$50/person/year) requires tracking active developers
  • Overage identity tracking via 90-day PR activity can be unpredictable
  • Free plan limited to weekly updates, requiring upgrade for real-time scanning
  • Advanced add-ons (Image Scanning, AI SAST, Agentic Rules Enforcer) pricing not published
  • On-premises deployment limited to Enterprise tier

Fastly

  • Bandwidth is priced per region, and delivery to India, Africa and South Korea is $0.28 per GB against $0.12 in North America and Europe
  • The same traffic therefore costs more than twice as much depending on where the audience is, which is invisible until the bill arrives
  • The free allowance is 100 GB of bandwidth and 1M requests a month
  • Requests are billed separately from bandwidth, at $0.01 per 10,000 above the first million
  • High volume rates past 50 TB are not published and require contacting sales

Pricing, plan by plan

Arnica

Free
  • FreeFree
    • No credit card required
    • 14-day trial available
    • Weekly risk identification updates
  • Core Business$360/year
    • Monthly billing option at $30/identity/month
    • Annual billing at $25/identity/month (17% discount)
    • Real-time risk scanning and notifications
  • Core Enterprise$720/year
    • Monthly billing option at $60/identity/month
    • Annual billing at $50/identity/month (17% discount)
    • All Core Business features

Fastly

Free
  • Free TrialFree
    • CDN
    • DDoS protection
    • Real-time analytics
  • Pay-As-You-GoFree
    • Usage-based pricing
    • Advanced features
    • Priority support

Which should you pick?

Choose Arnica if

  • You need ai sast.
  • You want to start without paying.
  • You work on Web, GitHub, IDE.
  • You also want software composition analysis.
Arnica review

Choose Fastly if

  • You need edge compute.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want cdn.
Fastly review

Questions people ask

Is Arnica or Fastly better?
Neither clearly leads. Arnica starts at Free and Fastly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arnica or Fastly?
Arnica starts at Free and Fastly at Free.
Does Arnica or Fastly run on more platforms?
Arnica runs on Web, GitHub, IDE. Fastly runs on Web, Api.
Can I use Arnica for free?
Both have a free tier, so you can try either at no cost before committing.
What is Arnica best used for?
Arnica is most often used for detecting ai-generated vulnerabilities in copilot and cursor suggestions, finding hardcoded secrets before they reach production, mapping container vulnerabilities back to source code, generating sbom for supply chain compliance requirements. Of those, detecting ai-generated vulnerabilities in copilot and cursor suggestions and finding hardcoded secrets before they reach production are not what Fastly is typically brought in for.
What can Arnica do that Fastly cannot?
Arnica covers AI SAST, Software Composition Analysis, Secrets detection, IaC scanning. Fastly covers Edge Compute, CDN, DDoS Protection, Real-time Analytics.

Answered from the vendors’ own pages

Arnica: How are identities defined in Arnica pricing?

Identities are any users and other contributing entities that contributed code and/or had PR activity during the last 90 days. This ensures billing matches active developers.

Source
Fastly: Does Fastly charge based on usage or a flat monthly fee?

Fastly operates on a usage-based model with volume discounts. They offer a free tier with 100 GB bandwidth and 1M requests for experimentation, then customers pay per unit consumed with tiered discounts as consumption increases.

Source
Arnica: What is the annual discount?

Annual prepayment offers approximately 17% savings versus monthly billing. Core Business annual is $300/identity versus $360 for monthly.

Source
Fastly: What are Fastly's main service packages and their costs?

Fastly offers Network Services Packages ($1,500-$6,000/month baseline), Security Packages (custom pricing), Compute Packages ($500/month entry level), and Observability Packages ($1,500/month entry level). Enterprise solutions include custom quotes for high-volume deployments.

Source
Arnica: Can I cancel or downgrade Arnica anytime?

Yes. Subscriptions can be cancelled or downgraded at any time. Overage identities receive automatic protection with true-up invoicing.

Source
Fastly: Can I start using Fastly for free?

Yes, Fastly offers a free tier with generous allowances for experimentation including 100 GB bandwidth and 1M requests. You can start building free and only pay when you use additional resources.

Source
Fastly: Are there surprise overage charges with Fastly?

Fastly advertises predictable pricing with no surprise overages. The pricing structure is designed to be transparent as consumption grows.

Source
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