FreeSubtitles.ai is a transcription service that offers both free and paid options. The free version allows for a maximum file size of 300 MB and a maximum duration of 1 hour, while the paid version offers a maximum file size of 10 GB and a maximum duration of 10 hours. The service supports audio and video files, as well as automatic download via link. There are 111 language options to choose from, and users can also choose from different models for accuracy and translation to different languages. Paid users are given priority in the queue.