OpenAI’s GPT-5.3-Codex thinks deeper and wider about coding work

The company says its latest model’s agentic skills also apply to a broader set of knowledge work such as presentations and ...

ChatGPT 5.3 Codex Moves Ahead on Code, While Claude’s 4.6 AI Banks on Reliability

On a 2.0 terminal benchmark, OpenAI’s model scores about 10% higher, guiding users toward stronger results on long, complex ...

GPT-5.3 Codex Raises the Bar, but Opus 4.6 Still Owns Deep Reasoning

In benchmark tests such as Swaybench Pro and Terminal Bench, GPT-5.3 Codex consistently outperformed its predecessors, setting new standards for speed and execution. When compared to Anthropic’s Opus ...
Visual Studio Magazine

Why Copilot's Auto Mode for AI Models Ignores Your Actual Task

Copilot's 'Auto' model picker in VS Code and Visual Studio currently routes to whatever model is most available and policy-compliant--not the one best matched to your prompt--while Microsoft/GitHub ...