Salesforce's 3-Year xLAM Bet on Function Calling Ships as Koa
huan__wang · x · 2026-09-18
A Salesforce AI Research lead recounts how a 3-year-old bet — that teaching models function calling would matter enormously for agents — shipped this week as Salesforce Koa, its first reasoning model. The xLAM Large Action Model family was fully open-sourced along the way: models from 1B to 141B on Hugging Face, the 60K function-calling dataset, the APIGen data pipeline, APIGen-MT-5k, AgentOhana, and three papers.
Related event: Salesforce Launches First Reasoning Model Koa with NVIDIA(7 posts)→
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