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✍️ Ai批改: Step 1: Understand the task
The task is to find a way to get free AI-generated subtitles.

Step 2: Identify potential solutions
There are several potential solutions to obtain free AI-generated subtitles, including online tools and software.

Step 3: Research online tools and software
Some online tools and software offer free AI-generated subtitles, such as YouTube's automatic captioning feature, online subtitle generators, and open-source software.

Step 4: List potential options
Some potential options include:
YouTube's automatic captioning
Online subtitle generators like Kapwing, Rev.com, or GoTranscript
Open-source software like FFmpeg with AI models

Step 5: Evaluate the options for free
YouTube's automatic captioning is free for YouTube videos.
Some online subtitle generators offer free trials or limited free services.
Open-source software can be free but may require technical expertise.

Step 6: Consider the limitations and quality
The quality and accuracy of AI-generated subtitles can vary、Free services might have limitations such as file size, video length, or accuracy.

Step 7: Provide a concise answer based on the steps
To get free AI-generated subtitles, one can use YouTube's automatic captioning for videos uploaded to YouTube, utilize online subtitle generators that offer free services or trials, or explore open-source software solutions.

The final answer is: YouTube自动字幕, Kapwing, Rev.com.