GPT-5.4 Pro with zero data retention.

• ZDR

  Claude, GPT, Gemini, and other models answer with zero data retention (ZDR). The provider reads the chat to answer it and promises by contract to keep nothing.

In ZDR and Open, Thinkr's proxy can read the chat in transit and writes none of it to disk.

• GPT-OSS 120BOpenAI's open-weight reasoning model, quick and light.See the model
• GPT-6.1 SolOpenAI's upgrade to GPT-6 Sol for analysis, documents, and code.See the model
• GPT-6 LunaOpenAI's fast, low-cost GPT-6 model for everyday chat.See the model