chatgpt is a text assistant people wire into support and writing. outages turn it into a hard stop when it sits inside your only workflow. keep a fallback path and save prompt and output logs so work continues and changes stay reviewable.
perplexity is a web research assistant, not a verdict machine. keep judgment in house by only copying claims that include clickable sources, then open two and pull the exact quote. no source, no trust. faster reading, fewer wrong takes.