Chatbots excel in conversation but falter at counting characters, as Our test of models like ChatGPT 4o, Grok 3, and Gemini 2.0 Flash shows. With results ranging from 114 to 153 for a 135-character sentence, the report uncovers design flaws, from tokenization traps to hallucination, highlighting the complex trade-offs in AI development.

Explore the best AI chatbots of 2025, from ChatGPT to Gemini. Dive into their standout features, pros, cons, and who they’re perfect for, with insights on the latest advancements in conversational AI.

ChatGPT introduces advanced real-time web search capabilities, leveraging a fine-tuned GPT-4o model to deliver timely, conversational answers. With partnerships from top publishers and Bing integration, ChatGPT offers a new, competitive way to access up-to-the-minute information, challenging traditional search engines like Google and Bing.