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Claude Opus 4.6 and ChatGPT 5.3 Codex launch with a 1-million-token window and 25% faster runs, letting you match tasks to each model’s strengths.

OpenAI’s latest coding-focused AI model is being promoted as a major leap forward for software development—faster prototyping ...

Greg Brockman says AI agents should become engineers’ primary tool at OpenAI, urging teams to redesign workflows, protect code quality, and build infrastructure that supports large-scale AI-generated ...

Sam Altman-led OpenAI launched GPT-5.3-Codex, which is a fast, agentic model that it believes goes beyond coding and can ...

OpenAI’s GPT-5.3-Codex expands Codex into a full agentic system, delivering faster performance, top benchmarks, and advanced cybersecurity capabilities.