83rd World Science Fiction Convention


The 83rd World Science Fiction Convention, also known as Seattle Worldcon 2025, was held in August 13–17, 2025 in Seattle, Washington, United States. The science fiction convention was chaired by Kathy Bond.

Participants

Guests of honor

The awards will be announced at the convention.

Site selection

The site of the convention was chosen by members of the 81st World Science Fiction Convention. The bid for Seattle was the only bid on the site selection ballot. Seattle received 163 of the 168 valid ballots received.

Controversies

AI controversy

On April 30, 2025, Worldcon Chair Kathy Bond posted a statement in response to questions regarding the con's use of AI, specifically ChatGPT, in their vetting process for program participants. This use of ChatGPT drew criticism from both the Sci-Fi and wider book communities, including authors. The most was that ChatGPT and similar large language models have been trained on copyrighted works without the authors' knowledge or consent. ChatGPT and other LLMs have also been shown to contain inherent biases and create fabrications it presents as facts.
In a subsequent statement on May 6, 2025, Chair Kathy Bond elaborated on Worldcon's AI use, apologized, and shared that they are "redoing the part of our program process that used ChatGPT".