DeepSeek’s top-ranked V4 Flash stumbles on real agent tasks as its prices surge

DeepSeek’s V4 Flash has topped model leaderboards and been hailed by developers as a “total monster” since its rollout. But in real-world testing, it completed just 53.8% of a batch of complex agent tasks. Composio ran the model through eight different agent harnesses, including Claude Code, Codex, and OpenCode, on 30 deliberately difficult, multi-step tasks […]

GLM-5.3 is here with advanced cyber capabilities — and reportedly already found a ‘serious vulnerability’ in Cursor

Chinese AI startup Z.ai, known internationally for its growing lineup of powerful, largely open source GLM series of language models, today released GLM-5.3 with substantial gains in long-horizon coding and a more consequential — and potentially sensitive — jump in cybersecurity capabilities. Already, GLM-5.3’s cyber capabilities have found a “potentially serious vulnerability in Cursor,” the […]

Why Capital One built its multi-agent AI platform around open-weight models

Presented by Capital One At VB Transform 2026, Kel Vanee, MVP of machine learning engineering at Capital One, spoke with Sam Witteveen, Senior Technology Contributor at VentureBeat, about how the bank built a scalable multi-agent AI architecture around deeply customized open-weight models rather than relying on an off-the-shelf foundation model. “At Capital One, we’re not […]

Writer says its new Palmyra X6 model cuts AI agent costs by 52% as token spending surges

Writer, the enterprise AI agent platform used by Fortune 500 companies including Accenture, Uber, and Vanguard, released its new flagship model Palmyra X6 today, alongside a rebuilt agent orchestration “harness” and new governance tools designed to give IT leaders control over runaway token spending. The headline numbers are striking: Writer says its agent product now […]