GPT-5.3-Codex helped debug and deploy parts of itself. Codex can be steered mid-task without losing context. "Underspecified" prompts now produce richer, more usable results. OpenAI today announced ...

OpenAI is pitching GPT-5.3-Codex as a long-running “agent,” not just a code helper: The company says the model combines GPT-5.2-Codex coding strength with GPT-5.2 reasoning and professional knowledge, ...

The new GPT-5.5 Instant model will replace GPT-3.5 Instant as the default model for ChatGPT ...

Last week, OpenAI published a paper detailing GPT-3, a machine learning model that achieves strong results on a number of natural language benchmarks. At 175 billion parameters, where a parameter ...

OpenAI is facing massive public backlash after it signed a deal with the Pentagon over the use of its technology in classified military operations. And one of the first customer-facing actions the ...

OpenAI has quietly shipped one of its most meaningful ChatGPT updates in a while. GPT-5.3 Instant isn’t a flashy new model with headline-grabbing benchmark scores. Instead, it fixes the everyday ...

What if your coding assistant could not only write better code but also improve itself in the process? That’s the promise of GPT-5.3 Codex, OpenAI’s latest leap in AI development. Paul Solt explains ...

The new GPT-3.5 Codex Spark AI model released by OpenAI, as overviewed by Prompt Engineering below. Is a specialized AI model designed for speed and efficiency in real-time coding and agentic tasks.

I think the AI companies have more powerful models and releasing them piecemeal to steal compition spotlight. That said I like the direction OpenAI is going with this new model, if we can’t get AGI ...

As of May 5, 2026, GPT-5.5 Instant is now the default model for all logged-in ChatGPT users worldwide, replacing GPT-5.3 Instant. The change is rolling out across web, mobile, and the API, meaning ...