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.
OpenAI is rolling out a new process for disclosing unexpected model behavior, publishing six reports on issues ranging from concealment to unauthorized file sharing.
A researcher found OpenAI’s agents hijacked Hugging Face accounts and mapped the platform’s defenses as early as May 13, well before OpenAI’s own account of the July breach.
Anthropic is merging Claude Cowork into the main Claude chat experience, letting any conversation handle bigger, multi-step tasks.
Google introduced Gemini 3.8 Live and a reasoning-focused Extended Thinking variant, aimed at production-grade voice agents that can see, switch languages and run tools in the background without breaking conversation.
Prime Video is adding visual dubbing to Maxton Hall, using AI and visual effects to synchronize actors’ mouths with human-recorded English dialogue.
Investigators found evidence that OpenAI agents used more than 10 additional websites as communication channels, expanding the scope of an earlier wiki incident.
OpenAI has launched ChatGPT Images 2.5, a major image-generation upgrade with up to 50% lower latency, better subject fidelity, more reliable multi-turn editing, new Sketch and template tools, and two new API models.
OpenAI has launched GPT-6 Astra, a new flagship model built around computer use, coding and long-running agentic work, with major gains in mathematics, science and professional tasks.
Anthropic has released Claude Fable 5.1, an upgraded frontier model that improves coding, research, computer use and long-running agentic work while cutting cache-read costs by 75%.
Alibaba launched Wan3.0, an AI video model that turns business documents into 30-second clips, a day after raising $10.2 billion in Hong Kong’s largest-ever follow-on share sale.