Arize AI

Arize AI

AI model observability and evaluation platform

Overview

Arize AI provides a platform for AI observability and LLM evaluation that helps teams monitor, troubleshoot, and improve the performance of machine learning models, including generative models, NLP, computer vision, and recommender systems. It works by delivering analytics and workflows, tracing LLM operations (traces and spans), retrieval augmented generation (RAG), and task-based evaluations for issues like hallucinations, relevance, and citation checks. The platform distinguishes itself by offering end-to-end AI observability and LLM evaluation for top AI companies, with embedding-based RAG analysis to diagnose missing or irrelevant context. The goal is to help AI teams ensure models perform optimally and continuously improve their AI systems.

About Arize AI

Simplify's Rating
Why Arize AI is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

AI & Machine Learning

Company Size

51-200

Company Stage

Series C

Total Funding

$131M

Headquarters

Berkeley, California

Founded

2020

Simplify Jobs

Simplify's Take

What believers are saying

  • Velvet acquisition in 2025 bolsters AI gateway for developer monitoring.
  • Google A2A partnership unlocks agent interoperability across platforms.
  • Microsoft Azure integration resolves enterprise LLM deployment barriers.

What critics are saying

  • Fiddler AI seizes share with superior explainability in 6-12 months.
  • Amazon SageMaker Monitor captures 70% AWS workloads in 3-9 months.
  • Deepchecks undercuts pricing with open-source drift detection in 12-18 months.

What makes Arize AI unique

  • Arize AI delivers unified observability for ML and LLMs via Phoenix open-source framework.
  • AI Copilot automates troubleshooting for prompt optimization and custom evaluations.
  • Alyx AI agent and AI Search V2 enable seamless issue discovery in production.

Help us improve and share your feedback! Did you find this helpful?

Funding

Total Funding

$131M

Above

Industry Average

Funded Over

4 Rounds

Notable Investors:
Series C funding is usually for startups that are doing well and are looking for more money to fuel major growth, such as acquiring other companies, expanding into global markets, or launching new product lines. Investors typically include larger venture capital firms and private equity.
Series C Funding Comparison
Above Average

Industry standards

$50M
$50M
Medium
$62M
SeatGeek
$70M
Arize AI
$100M
Oura

Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

Unlimited Paid Time Off

Parental Leave

Mental Health Support

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

-2%
Arize
Jul 1st, 2025
Meet Alyx: Arize's Evolving AI Agent

Arize AI, Inc is excited to introduce Alyx, the next evolution in Arize's intelligent assistant.

Arize
Apr 9th, 2025
Arize AI and the Future of Agent Interoperability: Embracing Google's A2A Protocol

Arize AI, Inc is excited to announce that Arize AI is partnering with Google as a launch partner for the Agent Interop Protocol (A2A), an open standard enabling seamless communication between AI agents across different platforms and organizational boundaries.

SiliconANGLE Media
Mar 13th, 2025
Arize AI Acquires Velvet for AI Observability

Arize AI Inc. has acquired Velvet to enhance its AI observability and evaluation capabilities. Velvet, founded in 2023, provides an AI gateway for developers to analyze and monitor AI features. The acquisition aims to meet the growing demand for AI monitoring and evaluation, with Velvet's team joining Arize to expand its offerings. Chris Hendel, Velvet's co-founder, will lead platform engineering at Arize. Financial terms of the deal were not disclosed.

Tech Company News
Feb 24th, 2025
Arize AI Raises $70M To Advance AI Observability And Fix Model Reliability Issues

With backing from major investors and deeper integration with Microsoft's Azure AI, Arize AI expands its tools to support enterprises deploying large-scale AI systems.

Arize
Feb 20th, 2025
Arize AI Raises $70M Series C to Build the Gold Standard for AI Evaluation & Observability

Learn how we're shaping the future of trustworthy LLMs & AI agents, and what's next for Arize in our Series C announcement.

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