OpenAI unveils GPT‑5.3 Instant to improve ChatGPT experience while Pentagon partnership criticism grows

OpenAI has introduced its new AI model, GPT-5.3 Instant, at a time when the company is facing criticism over its partnership with the U.S. Department of Defense. The launch comes just days after news broke that OpenAI would provide its AI tools for use on the Pentagon’s classified systems.

The timing has raised questions, with some users and experts expressing concern about how the company’s technology may be used in military settings.