Arize AX
Web page tricked a support agent into leaking another customer's data on 28 of 100 runs
A support agent built by Arize AI pulled up a different customer's record on 28 of 100 runs after reading a web page that framed the lookup as a routine step. According…
Arize Tests Confidence Gate for AI Agent Tool Selection in Phoenix
Arize AI has shown how a decision model can make an AI agent's tool choices visible and checkable. In its demo shopping agent, picks with a confidence below about 0.7…
Arize brings its Alyx AI engineering agent to Google Cloud Marketplace
Arize AI has made Alyx, the AI engineering agent built into Arize AX, available on Google Cloud Marketplace. Teams can add it to their Gemini Enterprise environment and…
Arize AX adds Together AI to cut the cost of LLM-as-a-Judge evaluations
Arize AX now supports Together AI as an AI provider for evaluations, so teams can test open models as judges and look for cheaper alternatives to frontier models.…
Arize AX adds Cost Agent to trace down wasted LLM and agent spend
Arize AI has launched Cost Agent, a managed agent in Arize AX that analyzes application traces to find recurring sources of unnecessary LLM, coding agent and AI spend.…
Arize ships hosted MCP server for AX, says CLI and skills still matter
Arize AI has released a hosted MCP server for its AX platform, letting agents in Claude Code, Cursor and Claude Desktop query traces, experiments, evaluators and…
Arize's Alyx Agent Swaps Knowledge Graph for a Single 8,000-Character Memory File
Arize AI says the long-term memory it shipped for Alyx, the AI engineering agent inside Arize AX, is a single structured text file per user and Arize space, capped at…
Arize AX Becomes Launch Partner for MongoDB's Atlas Agent Engine
Arize AI is a launch partner for MongoDB's Atlas Agent Engine, a new platform for building, deploying and governing AI agents in production. Arize AX supplies…
Arize test finds Opus 5.5 nearly drops em dashes, halves other Claudisms
Anthropic says Opus 5.5 fixed Claude's writing, and an evaluation run by Arize largely backs the em dash part of that claim. Other stylistic tics fell by about half…
Arize test: Jev's probabilities flag its own errors and hard cases for LLM judges
Arize AI says Jev, a model that returns a probability for each label instead of generating text, can show where an evaluation is likely wrong or hard from a single call.…