When we launched GPT-4.5, we were proud of the model, but users liked it much more than we anticipated, expressing that it was significantly better than GPT-4 in various ways.

The release of GPT-4 marked a significant turning point, as it performed much better than previous models, achieving results that surpassed 90% of test takers in legal assessments.

Reactions to GPT-4.5 have been muted because its improvements over GPT-4 are seen as relatively incremental, despite this launch being an important milestone for future models.

GPT-4.5 is potentially more than 10 times the size of GPT-4, representing a step forward in both pre-training and post-training processes.

Before the public launch of GPT-4, we had law firms using our AI without knowing it was powered by GPT-4, and they were amazed by its capabilities, completing tasks that previously took a whole day in just minutes.

GPT-3 represents a huge leap forward, not just a small improvement over its predecessors, and researchers believe this trajectory will continue.

The main advantages of GPT-4 include faster response times, sharper reasoning that reduces misunderstandings, and more natural language that feels relatable rather than robotic.

Despite its advancements, GPT-4.5 is significantly more expensive than previous models, costing 30 times more per input token and 15 times more per output token.

After gaining early access to GPT-4, we developed a groundbreaking product that allowed us to add millions of dollars in revenue monthly, demonstrating the transformative power of AI in legal work.