39The customer wants to test five model variants without losing money on the bad ones. A/B test or a bandit?▼hardMetaGoogleDatabricks1 replies◆ premiumBandits sound strictly better and usually are not. The regret-vs-inference tradeoff, the three conditions that actually favor a bandit, and the production failure that makes adaptive allocation a debugging nightmare.Open full answer →
59Route each request to a cheap 7B or expensive 70B model to maximize satisfaction minus cost. Design the online router.▼hardCohereDatabricksMartian1 replies◆ premiumA static threshold on prompt length leaves money on the table both ways. The router that learns is a contextual bandit, and the interview lives in the reward function and the cold-start handling, not the algorithm name.Open full answer →
