Back to directory
Model Tools & Dev PlatformSeries CInfra

Arize AI

Observe, evaluate and improve production AI.

Company snapshot

Stage
Series C
Funding
Series C · $70M · Feb 20, 2025
Status
published
Updated
Nov 4, 2026
Views
Website
arize.com

What they're building

Observe, evaluate and improve production AI. Arize provides AI observability and evaluations that trace, test, and improve models and agents from development through production, including its open-source Phoenix tools.

Foundation model usage

Editorial estimates from product descriptions. Model providers and actual usage are not confirmed.

Inferred architecture
Agentic loops, Code generation
Estimated model demand
High intensity

NYC footprint

NYC presence
NYC company or team supported by public sources. Street address has not been verified.

Funding

Latest funding: Series C · $70M · Feb 20, 2025.

Sources & location evidence

Open research desk ↗

Profile source review: 2026-11-04. Company job page explicitly says it has opened NYC and San Francisco Bay Area offices as options for in-person work, while remaining remote-first. No exact NYC street established. Company press index supplies the February 20 announcement day.

Location unresolved · verified office

Street address not public. Current occupancy not confirmed. Company explicitly says it has opened NYC and SF Bay Area offices for employees who wish to work in person, while remaining remote-first. No exact NYC street established.

Arize AI - Expansion Account Executive, New York ↗

Source checked 2026-11-04

Notes

Arize AI is tagged infra based on buyer clarity, repeat workflow activity, public activity, and fit with the AI Atlas map.

Related NYC startups

Weights & Biases

Track, evaluate, and improve the AI development lifecycle.

Weights & Biases gives AI teams tools to track experiments, evaluate models and agents, inspect application traces, and improve deployed systems through shared evidence.

Model Tools & Dev PlatformAcquiredInfra

Recent Activity

· 2h ago
Scale AI

Scale AI provides training data, model evaluations, and enterprise AI applications, helping organizations build and deploy systems whose capabilities can be measured.

Model Tools & Dev PlatformGrowthInfra

Recent Activity

· 2h ago
Reflection

Reflection develops open-weight models and supporting software for coding, reasoning, and agents, giving organizations deployment control through its API or their own infrastructure.

Model Tools & Dev PlatformGrowthInfra

Recent Activity

· 2h ago