Ask anything and get instant answers from OpenAI GPT-5.5 — try it free, no credit card needed.
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ai-chat.pro is an independent service, not affiliated with the AI model developers. Model access via official APIs.
ai-chat.pro is an independent AI workspace built on OpenAI's GPT model family through the official API - from the fast GPT-4-class workhorses to the newest GPT-5 generation - in one clean chat interface. Pick the model from the header and start typing.
Use it for everyday writing, coding help, studying, summarizing documents, brainstorming, and image generation. Your conversations are saved to your account, searchable, and available on desktop and mobile.
No. ai-chat.pro is an independent service operated by Antipadia Enterprises Limited. We are not affiliated with, endorsed by, or sponsored by any AI model developer; model access is provided through the providers' official paid APIs, and all trademarks belong to their respective owners.
ChatGPT is OpenAI's own product. ai-chat.pro is an independent workspace powered by the same OpenAI GPT models via the official API, plus Anthropic's Claude lineup - so you can compare flagship models side by side under one subscription.
GPT-4 class models are fast and reliable for everyday tasks; GPT-5 class models are stronger at reasoning, coding and long, complex work. You can switch between them in the model picker at any time.
You can try the service for just $1. After the trial, plans start at $29.99 per month and include the GPT model family plus Anthropic's Claude models.