Current leader of the Large Text Compression Benchmark is NNCP (compression using neural networks), also by Fabrice Bellard:

https://bellard.org/nncp/

Also, nncp-2024-06-05.tar.gz is just 1180969 bytes, unlike ts_zip-2024-03-02.tar.gz (159228453 bytes, which is bigger than uncompressed enwiki8).