Product Features

Arthur Platform Release Notes - October 2025 Edition

What's new in Arthur: More Control, More Context, More Confidence in Every Eval

Arthur Platform Release Notes - October 2025 Edition

At Arthur, we’re always thinking about one thing: how to give builders more visibility and control over their AI systems. This month’s updates are all about helping you measure what matters, trace what’s happening, and ship with confidence.

🚀 New from Arthur: The Start Up Partner Program

If you’re building a venture-backed startup working with AI Agents, we’ve got something just for you. The new Start Up Partner Program helps founders and technical teams bring agents safely and reliably to production… faster. Access platform credits, hands-on support, and evaluation tools trusted by top enterprises. Apply Today →

📏 Custom Metrics (Now Live)

Every team measures success differently, and now you can bring that flexibility right into your workspace. With Custom Metrics, you can define and manage your own metrics directly in SQL, reuse them across projects, and track performance over time with full version control. No more workarounds, just clean, transparent, auditable measurement. Learn More →

❄️ Snowflake Connector Support

Your data just got easier to work with. You can now connect Snowflake as a data source within Arthur’s connector workflow, so your models, evals, and metrics stay perfectly in sync with your data warehouse.

🕵️ Agent Trace Viewer Upgrades

We’ve refined the Agent Trace Viewer to help you pinpoint issues faster. Filter by metric results, span type, and more so you can jump straight to the insights that matter most.

⚙️ Engine Enhancements

We’ve been busy under the hood:

  • Support for custom metrics on nested data

  • GenAI Engine now runs as a non-root user for improved security

  • Enforced non-null timestamps for cleaner telemetry

  • Better pagination for MSSQL

  • Added status_code and session_id to spans for richer debugging context

Together, these updates make the Arthur Platform more flexible, transparent, and powerful for teams building with AI in production.

🌟 Stay Ahead

If you haven’t explored Arthur lately, now’s the time. From startups to enterprises, we’re helping teams move from guesswork to guaranteed performance—one release at a time.

See the full platform release notes for October 2025 here.