Why TF is my Claude thinking in Polish!
A user reported an unusual incident where their Claude AI, despite being prompted in English, processed its thoughts in Polish before delivering an English response. This behavior, described as Claude "thinking in Polish," led the user to humorously suggest their AI was experiencing "bipolar disorder." The interaction highlights an unexpected language processing quirk within the AI system.
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PublishedOffset at this time: UTC+0Sep 29, 2026, 18:56 UTC
IngestedOffset at this time: UTC+0Sep 30, 2026, 08:00 UTC
- Published
- Sep 29, 2026, 18:56
- Ingested
- Sep 30, 2026, 08:00
- Source type
- Dev community
- Tier
- Community
- Source status
- Healthy
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Asked a question to Claude in English, it did the thinking in Polish, and gave a reply again in English. Looks like my Claude is having bipolar disorder.
https://preview.redd.it/pzdkpxgraish1.png?width=920&format=png&auto=webp&s=e59e8960456eb1a9590040bdc98dd59a184f56b3