04Your platform needs to retire an older model that thousands of customers still use. How do you plan the deprecation?▼medium★ EssentialNewOpenAIAnthropicGoogleunlockedDeprecations are where platforms earn or lose developer trust. The interviewer wants a timeline, a recommended replacement with evidence, migration tooling, and special handling for customers who cannot move easily.Practise this question →Read answer →
16Your team needs to change the API's response format in a way that will break existing integrations. How do you ship it?▼mediumNewStripeAnthropicOpenAI◆ premiumDeveloper trust in an API rests on stability. The interviewer wants versioning, a long overlap, migration help and measurement, with the breaking change treated as a cost to minimise.Practise this question →Read answer →
40Should our free API tier use developers' prompts for training in exchange for free usage?▼mediumNewGoogleMistral AIOpenAI◆ premiumData for free usage is a legitimate trade if it is explicit. Draw a hard line so production apps serving regulated users move to paid, and keep enterprise excluded by default.Practise this question →Read answer →