Development build of main (5755e31). It is not the latest release: sushi update, the built-in update check and Homebrew stay on v1.6.0 and never offer it. Ad-hoc signed and not notarized, like every sushi release.
To try it:
shasum -a 256 -c sushi-bin-macos-arm64.tar.gz.sha256
tar -xzf sushi-bin-macos-arm64.tar.gz
xattr -dr com.apple.quarantine sushi-macos-arm64
./sushi-macos-arm64/sushi --versionSince v1.6.0: prefill with the SSD prompt cache is back to full speed (saving a long prompt no longer stalls the next chunk), and follow-up turns restore from the SSD prompt cache faster again.