ChatGPT.org Just Rebranded — and Now It’s Giving Away Gemini 2.5 Pro for Free

ChatGPT.org has officially rebranded to ChatAI.org, pivoting from a single-model site to a multi-model AI comparison and chat platform. The new site offers free, accountless access to Google's latest Gemini models — Gemini 2.5 Pro (flagship for complex reasoning and coding) and Gemini 2.5 Flash (optimized for speed). Users can open a chat directly in their browser, no login required, and leverage Gemini's multimodal capabilities including text, code, and image analysis. In addition to Gemini, ChatAI.org features a model selector that includes GPT-4, Claude 3.5, Grok, DeepSeek, Qwen, Kimi, and Perplexity. The platform emphasizes side-by-side comparisons of these models across key capabilities, making it a one-stop shop for professionals evaluating AI tools.

The rebranding reflects a strategic shift to address the growing demand for model comparison and accessibility. Developers and researchers can now test Google's state-of-the-art models alongside competitors without friction. Gemini 2.5 Pro excels at multi-step reasoning, data analysis, and generating code with Google-grade engineering knowledge. The availability of both Pro and Flash models on ChatAI.org lowers the barrier for anyone wanting to experiment with Google's AI ecosystem. For professionals, this means free, instant access to some of the most powerful AI models on the market, with built-in tools to compare outputs and features — all from a single interface that requires no subscription or account.