not much happened today

**GPT-4.5** sparked mixed reactions on Twitter, with **@karpathy** noting users preferred **GPT-4** in a poll despite his personal favor for GPT-4.5's creativity and humor. Critics like **@abacaj** highlighted **GPT-4.5's slowness** and questioned its practical value and pricing compared to other models. Performance-wise, **GPT-4.5** ranks above **GPT-4o** but below **o1** and **Claude 3.5 Sonnet**, with **Claude 3.7** outperforming it on many tasks yet GPT-4.5 praised for its humor and "vibes." Speculation about GPT-4.5's size suggests around **5 trillion parameters**. Discussions also touched on pricing disparities, with **Perplexity Deep Research** at $20/month versus ChatGPT at $200/month. The emotional intelligence and humor of models like **Claude 3.7** were also noted.