Yes, o1 hid its input. Still, it also provided a summary of its reasoning steps. In the email case, o1 thought for six seconds, summarized its thinking as "summarizing the email", and then provided the answer.

We saw this in other questions as well. For example, if you asked o1 to write a "python function to download a CSV from a URL and create a SQLite table with the right columns and insert that data into it", it would immediately produce the answer. [4] If you asked it a hard math question, it would try dozens of reasoning strategies before producing an answer. [5]

[4] https://github.com/ubicloud/ubicloud/discussions/2608#discus...

[5] https://github.com/ubicloud/ubicloud/discussions/2608#discus...