AI Employee Slashes Thread Costs by 82% Using Prompt Caching Architecture
Viktor, an AI employee built for Slack and Microsoft Teams, slashes agent thread costs by 81.8% on Claude Opus 4.8 through a prompt caching architecture that drops a 40-step thread from $11.35 to just $2.07 by keeping prefixes byte-stable, treating threads as append-only logs, and timing cache compaction strategically around …