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 ...

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some tasks) than its predecessors).

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, ...

OpenAI's GPT-5.3 Instant — the company's most widely used model — reduces hallucinations by up to 26.8% compared to its predecessor, prioritizing accuracy and conversational reliability over raw ...

OpenAI has unveiled its latest model, GPT-5.3 Instant, which is coming to ChatGPT with the goal of delivering improvements and enhancements to the experience. "Instant" GPT models have primarily ...

The new model introduces native computer use, a 1-million-token context window, and a reworked tool-calling system. Whether it actually holds off Anthropic and Google is less clear. OpenAI is moving ...

OpenAI has released GPT-5.3 Instant, the latest iteration of the fast, general-purpose model that powers everyday interactions in ChatGPT. Rather than introducing a new frontier model, the update ...

OpenAI's new small models are faster and cheaper than GPT-5.4—exactly what developers and businesses actually need.

OpenAI has released an update to ChatGPT that it says should make its most commonly used model less “cringe” and more natural. Users should see fewer overly dramatic, jarring responses as a result.

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 ...

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.