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AI · head to head

Arize AI vs Inflection AI

Arize AI logo

Arize AI

AI

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

From
Free
Rated
-
Full reviewWebsite
Inflection AI logo

Inflection AI

AI

Personal AI for everyone

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.; Inflection AI inflection AIs consumer product Pi is distributed as a free app with no subscription tiers or in-app purchases named in its App Store listing
  • They diverge on capability: Arize AI covers End-to-end tracing, Inflection AI covers Personal AI.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Arize AI and Inflection AI actually diverge.

Attributes where Arize AI and Inflection AI differ
AttributeArize AIInflection AI
Pricing modelfreemiumfree
Platformsweb, apiWeb, Ios, Android
FoundedUnknown2022

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

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 Inflection AI

  • Personal AI
  • Conversational interface
  • Voice interaction
  • Cross-platform
  • Pi app
  • Web interface
  • Web support
  • Ios support

What people use each for

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

Arize AI

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

Inflection AI

  • ai tools managementnot Arize AI
  • Workflow automationnot Arize AI
  • Reportingnot 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.

Inflection AI

  • Inflection AIs consumer product Pi is distributed as a free app with no subscription tiers or in-app purchases named in its App Store listing

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

Inflection AI

Free
  • FreeFree
    • Access to Pi
    • Unlimited usage

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 Inflection AI if

  • You need personal ai.
  • You want to start without paying.
  • You work on Web, Ios, Android.
  • You also want conversational interface.
Inflection AI review

Questions people ask

Is Arize AI or Inflection AI better?
Neither clearly leads. Arize AI starts at Free and Inflection AI at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Arize AI or Inflection AI?
Arize AI starts at Free and Inflection AI at Free.
Does Arize AI or Inflection AI run on more platforms?
Arize AI runs on web, api. Inflection AI runs on Web, Ios, Android.
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 Inflection AI is typically brought in for.
What can Arize AI do that Inflection AI cannot?
Arize AI covers End-to-end tracing, Evaluation framework, Prompt testing and improvement, Alyx AI engineering agent. Inflection AI covers Personal AI, Conversational interface, Voice interaction, Cross-platform.

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
Inflection AI: Is Inflection AI's Pi service free to use?

The website invites users to 'Try Pi' but does not disclose pricing details, whether there is a free tier, usage limits, or what happens after a trial period.

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
Inflection AI: Does Pi have a paid tier or premium features?

Pricing information is not published on Inflection's main website. Users must try the Pi platform or contact support to learn about premium options or costs.

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
Inflection AI: What commercial terms apply to using Pi?

Inflection does not disclose subscription models, pricing tiers, commercial licenses, or terms of service on their homepage, directing questions to support channels.

Source
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