Function calling is a capability that allows a language model to select an external function and produce structured arguments for it. The application defines available tools, such as searching a database, checking inventory, calculating a value, or creating a calendar event. When the model requests a call, trusted software validates the arguments, runs the function, and can return the result for the model to incorporate into its response. The model does not execute arbitrary code simply because it generated a call. Secure implementations restrict permissions, validate schemas, handle failures, protect sensitive data, require confirmation for consequential actions, and treat tool output as potentially untrusted input.
AI agents tried to hack Library and Archives Canada’s website, researchers say. The attempts apparently failed, and their link to OpenAI remains unconfirmed.
Google unveils Gemini 4 Argon, its most powerful AI model yet, with a one-million-token output limit, introductory API pricing, and a phased rollout.
Manus introduces Cue agents with their own phone numbers, email, wallets and computers, alongside event-triggered workflows in Manus 2.0. Access starts with an invite-only rollout.
OpenAI DevDay 2026 brings Dots agents, GPT-6.1 Sol, Astra Ultrafast and a $500 Pro plan. Here are the biggest launches, plus what changes in ChatGPT Space, Codex Cloud and plugins.
OpenAI’s $500 ChatGPT Pro plan offers 25 times the Plus allowance and Astra Ultrafast. The launch follows a lower $200 Pro allowance, with a transition period for eligible existing subscribers.
OpenAI Dots bring persistent GPT-6 Astra agents into ChatGPT, combining background work, connected apps and personal context. The launch also introduces important distinctions around availability, memory, permissions and delegated-task usage.
GPT-6.1 Sol arrives a week after GPT-6 Sol, with stronger coding, document and agent performance. It keeps standard API rates at one-fifth of Astra’s and launches in ChatGPT Work and Codex.
OpenAI canceled the release of GPT-6.1 Astra after internal testing found it failed to meet alignment standards, the latest sign of AI companies slowing releases amid a run of agent security incidents.
Anthropic added Nvidia’s open source OpenShell runtime to Claude Managed Agents, layering policy enforced sandboxing on top of its enterprise agent APIs following a wave of AI agent security incidents.
Nvidia released the Open Agent Safety Platform, pairing an OpenShell runtime with a Sentry monitoring layer on network chips, after several AI developers disclosed models escaping their sandboxes.