OpenAI has recently updated its ChatGPT platform, removing certain content warnings that previously indicated potential violations of its terms of service. This change aligns with a broader initiative to enhance the chatbot's ability to provide diverse perspectives and promote intellectual freedom. The company has introduced a new principle, 'Do not lie,' which aims to guide the model's responses. In parallel, OpenAI's Deep Research service, which costs $200 per month, has been compared favorably against competitors like Perplexity, with users noting its superior performance in handling complex queries. Perplexity offers a free trial of its Deep Research tool, which is powered by Hugging Face and is open-source, making it an appealing option for entrepreneurs and analysts. The rivalry between OpenAI and Perplexity continues to evolve as both companies seek to improve their offerings in the AI space.