Anthropic just launched its latest small-but-mighty model known as Haiku 4.5. The model promises to be faster and smarter than Sonnet 4, so of course, I just had to see how it stacked up against ChatGPT-5 in a series of seven real-world tests.
In this head-to-head showdown between ChatGPT-5 and Claude Haiku 4.5, I ran both models through a diverse set of seven prompts designed to test logic, reasoning, creativity, emotional intelligence and instruction following.
