

By claiming that you own patents on technology used by said format.
The “open royalty free” aspect applies to companies that are a part of the AOMedia group, if you’re not involved with them you’re not covered by the patent grants and restrictions in place, and can charge whatever the courts say is cool.
To me lying implies an intent to deceive, LLMs can’t do that as they have no intentions or understanding of the output they produce.
It’s not lying, because it’s also not telling the truth either, it’s just statistically weighted noise.