Deep-Dive: How Reddit's Multi-Agent AI Summarizes Threads into Dual-Voice Audio

Converting raw Reddit threads full of sarcasm, slangs, and nested replies into coherent spoken podcast scripts requires sophisticated multi-agent orchestration. Reddit's pipeline uses a specialized fine-tuned LLM to parse comment trees, rank upvoted facts, and reformat content into a natural back-and-forth dialogue script.

Once the script is generated, it is passed to a low-latency neural speech engine that assigns distinct vocal timbres and inflection profiles to different commenters, preserving original quotes while stripping out clutter.

For vertical videos, the engine automatically aligns spoken audio with dynamic captions and contextual visual assets, rendering 60-second clips on serverless worker nodes in under three seconds.