ChatGPT vs. DeepSeek
ChatGPT or DeepSeek? We compare the versatile market leader with the free open-weights assistant — performance, privacy and price put to the test.
ChatGPT
ChatGPT ist das bekannteste KI-Tool weltweit – und einer der vielseitigsten Allrounder. Texte, Code, Analyse und Bilder beherrscht es gleichermaßen gut.
DeepSeek
DeepSeek ist ein leistungsstarker KI-Assistent mit kostenlosem Web-Chat und App – plus sehr günstiger API. Die Modelle sind als Open Weights verfügbar.
Criteria Comparison
Each criterion was evaluated in our standard test with identical tasks.
Price development, measured
We measure both entry prices daily. This is what has actually happened since we started tracking them.
Measured since 15 July 2026 · AI tool price index →
Our Verdict
"ChatGPT is the more versatile, more privacy-secure all-rounder, DeepSeek the strong and nearly free challenger."
Choose ChatGPT if you need versatility (images, voice, web search, code), high reliability and GDPR compliance. Best choice for professional use, teams and anyone who wants a mature ecosystem.
Choose DeepSeek if you want to use powerful chat and reasoning for free, or scale via the very cheap API. Ideal for budget-conscious users and developers — given the Chinese provider, review data privacy before sensitive use.