# OpenAI Announces GPT-4.5 Research Preview

OpenAI has announced the release of GPT-4.5, describing it as their "largest and most knowledgeable model yet" in a research preview accompanied by a system card.

The announcement, posted on OpenAI's official Twitter account, marks the next iteration in the company's flagship language model series. While specific technical details weren't included in the tweet, the designation as both "largest" and "most knowledgeable" suggests significant improvements in model size, training data, and overall capabilities compared to GPT-4.

A "system card" typically refers to OpenAI's transparency documentation that outlines a model's capabilities, limitations, and safety evaluations. The "research preview" label indicates this is an early release, likely available to select users or researchers before a broader public rollout.

This release matters because GPT-4 has been the foundation