The speaker was personally invited by the Qwen team to present at the Korea meetup, according to the primary source blog post. The talk addressed reliable function calling on recursive union types that industry reports generally describe as not working (https://autobe.dev/blog/function-calling-harness-qwen-meetup-korea/).

With qwen3-coder-next the initial first-try success rate stood at 6.75%. The entire Qwen 3.5 model family recorded 0% success on union types because of a consistent double-stringify bug, the same post states.

The harness corrected the identified issues to reach full reliability on the targeted structures, per the cited account of the event.