From today (2025-06-10) around morning European Central Time, the API latency has gone up.
The translate API takes around 10-15 seconds
The smartDictionary API takes about 20-30 seconds
Which means the “Explain” tab would first time out and show “Problem loading explanation, try again” (or something along that line) and then once the content are fully streamed, it appears suddenly.
Would be interesting to fall back to a local dictionary if the AI-based single word explanation does not load in time. I would say only 20% of the time I need the smart, context aware translation. Most of the time I’m still learning basic vocabulary.