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Arize AI vs Linearity Curve

Arize AI logo

Arize AI

Software

AI engineering platform for observability and evaluation of agents and LLM apps

From
Free
Rated
-
Full reviewWebsite
Linearity Curve logo

Linearity Curve

Software

Professional vector design for Mac and iPad

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Arize AI the free plan caps trace spans at 25,000 per month with only 15 days of retention.; Linearity Curve limited to Apple ecosystem (Mac, iPad, iPhone) with no Windows or Linux support
  • They diverge on capability: Arize AI covers End-to-end tracing, Linearity Curve covers Vector editing.

Where they differ

Only the attributes on which Arize AI and Linearity Curve actually diverge.

Attributes where Arize AI and Linearity Curve differ
AttributeArize AILinearity Curve
Pricing modelfreemiumUnknown
Platformsweb, apiMac, Ios
FoundedUnknown2017

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

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 Arize AI

  • End-to-end tracing
  • Evaluation framework
  • Prompt testing and improvement
  • Alyx AI engineering agent
  • Custom dashboards
  • Data warehouse integrations

Only in Linearity Curve

  • Vector editing
  • Auto Trace
  • Typography tools
  • Pen tool
  • iCloud sync
  • Adobe Creative Cloud
  • Sketch
  • Figma

What people use each for

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

Arize AI

  • Tracing and debugging production AI agentsnot Linearity Curve
  • Running large-scale evaluations across traces and sessionsnot Linearity Curve
  • Improving prompts before production rolloutnot Linearity Curve
  • Storing and querying GenAI traces alongside a data warehousenot Linearity Curve

Linearity Curve

  • Vector illustrationnot Arize AI
  • Logo designnot Arize AI
  • UI designnot Arize AI
  • Print designnot Arize AI

Where each one falls short

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

Arize AI

  • The free plan caps trace spans at 25,000 per month with only 15 days of retention.
  • Self-hosted deployment and Data Fabric integration are restricted to the custom-priced Enterprise tier.
  • Pricing beyond the $50/month Pro plan requires a custom quote, making cost planning less transparent at scale.
  • Advanced compliance features like HIPAA are only available on Enterprise.

Linearity Curve

  • Limited to Apple ecosystem (Mac, iPad, iPhone) with no Windows or Linux support
  • Requires annual or monthly subscription for commercial use, unlike competitors offering lifetime purchase options
  • Free plan is severely limited to only 3 Curve files and 5GB storage

Pricing, plan by plan

Arize AI

Free
  • AX FreeFree
    • 25k trace spans/month
    • 1 GB storage/month
    • 15-day retention
  • AX Pro$50/month
    • 50k trace spans/month
    • 10 GB storage/month
    • 30-day retention
  • AX Enterprise$undefined/mo
    • Custom trace spans, storage, and retention
    • SaaS or self-hosted deployment
    • Managed agents and Data Fabric

Linearity Curve

Free
  • StarterFree
    • 50 lifetime credits
    • 3 Curve files
    • 5GB storage
  • Pro$11.99/month
    • 250 monthly credits
    • Unlimited files
    • 100GB storage
  • Business$65/month
    • 500 monthly credits
    • 500GB storage
    • Brand management

Which should you pick?

Choose Arize AI if

  • You need end-to-end tracing.
  • You want to start without paying.
  • You work on web, api.
  • You also want evaluation framework.
Arize AI review

Choose Linearity Curve if

  • You need vector editing.
  • You want to start without paying.
  • You work on Mac, Ios.
  • You also want auto trace.
Linearity Curve review

Questions people ask

Is Arize AI or Linearity Curve better?
Neither clearly leads. Arize AI starts at Free and Linearity Curve at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arize AI or Linearity Curve?
Arize AI starts at Free and Linearity Curve at Free.
Does Arize AI or Linearity Curve run on more platforms?
Arize AI runs on web, api. Linearity Curve runs on Mac, Ios.
Can I use Arize AI for free?
Both have a free tier, so you can try either at no cost before committing.
What is Arize AI best used for?
Arize AI is most often used for tracing and debugging production ai agents, running large-scale evaluations across traces and sessions, improving prompts before production rollout, storing and querying genai traces alongside a data warehouse. Of those, tracing and debugging production ai agents and running large-scale evaluations across traces and sessions are not what Linearity Curve is typically brought in for.
What can Arize AI do that Linearity Curve cannot?
Arize AI covers End-to-end tracing, Evaluation framework, Prompt testing and improvement, Alyx AI engineering agent. Linearity Curve covers Vector editing, Auto Trace, Typography tools, Pen tool.

Answered from the vendors’ own pages

Arize AI: What does Arize AX cost?

Arize AX offers a free plan, a Pro plan at $50/month, and a custom-priced Enterprise plan, with pricing based on trace spans, storage, and retention needs.

Source
Linearity Curve: Does Linearity Curve have a free plan?

Yes, Linearity offers a free Starter plan with 50 lifetime credits, 1 basic brand kit, and 5GB cloud storage. No credit card is required to access the free tier.

Source
Arize AI: Is there a free plan, and what are its limits?

The AX Free plan includes 25,000 trace spans and 1 GB of storage per month with 15-day retention, plus unlimited users, evaluations, and experiments.

Source
Linearity Curve: Can I use Linearity Curve on multiple devices?

Yes, Linearity Curve is available on Mac, iPad, and iPhone, with real-time collaboration allowing teams to see changes instantly across devices.

Source
Arize AI: What deployment options are available?

Free and Pro plans are SaaS-only, while Enterprise customers can choose SaaS or self-hosted deployment with custom SLAs.

Source
Linearity Curve: What file formats can I export from Linearity Curve?

Linearity Curve supports exporting to industry-standard formats including .ai, SVG, PDF, PNG, JPG, and TIFF, making it compatible with other design tools.

Source
Linearity Curve: Does Linearity Curve have AI-powered vectorization?

Yes, Linearity Curve includes an Auto Trace feature with three modes (Sketch, Photography, Illustration) that uses AI to instantly vectorize images into editable paths. It also includes AI-powered background removal.

Source
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