OpenAI launches GPT-4.5, its largest chat model yet, rolling out to Pro users
Feb 27, 2025
Key Points
- OpenAI launches GPT-4.5, its largest chat model yet, in research preview rolling out today to all ChatGPT Pro users.
- The release follows a pattern of rapid AI launches from competitors Claude, DeepSeek, and xAI, where execution speed and visibility trump waiting for perfect conditions.
- OpenAI aims to own the spotlight for a few days before the product cycle shifts to the next competitor, making launch timing over thoroughness the dominant strategy in current LLM wars.
Summary
OpenAI released GPT-4.5, described as its largest and best model for chat yet, rolling out today in a research preview to all ChatGPT Pro users.
The announcement came via livestream and video posts across platforms, marking the latest move in the rapid-fire product cycle that has defined AI competition over the past week. Claude had its moment earlier in the week. DeepSeek had its moment the week before. xAI made noise over the weekend. OpenAI's release follows that same pattern: a few days of spotlight, then the cycle continues.
The hosts note the timing is interesting given Elon Musk's control of X and questions about whether he might suppress OpenAI's reach on the platform—though they acknowledge "attention is attention," and any visibility, even negative, serves the company. One host tested the model briefly during the show, though the depth of GPT-4.5's capabilities versus competitors remained to be fully assessed at air time.
The product launch underscores a strategic reality both hosts emphasize: in the current LLM wars, execution speed and visibility matter more than waiting for perfect conditions. As one host puts it, "the best case scenario is you kind of own the spotlight for a few days." That window is narrow and repeating, which is why companies are launching continuously rather than holding for ideal moments.