Is it Deepsek or DeepSeek? Here's the correct spelling
The correct spelling is DeepSeek — one word, camelCase, capital D and capital S. Everything else (deepsek, deepseak, deap seek, deep sek) is a typo for the same Chinese AI company.
DeepSeek
One word · Capital D · Capital S · No hyphen · No space
Common misspellings of DeepSeek
Missing 'e' — by far the most common typo (search volume ~18K/month in the US).
Extra 'a' — phonetic misspelling. Sometimes intentional brand styling, but always incorrect.
Two words with missing 'e' — combines both common errors.
'Deap' instead of 'deep' — phonetic typo from non-native English speakers.
Confusion with the Perplexity feature 'Deep Search'. Different product.
Hyphenated — incorrect; the official brand never uses a hyphen.
All caps on 'SEEK' — the official capitalisation is camelCase: DeepSeek.
Two words — extremely common (1M+ monthly impressions). Search engines treat this as a valid variant but the brand is one word.
Why so many people misspell DeepSeek
DeepSeek launched into global awareness in January 2025 when its R1 reasoning model topped benchmarks at a fraction of OpenAI's cost. Hundreds of millions of people heard the name spoken before they ever saw it written — and "deep seek" is naturally easy to mis-type as "deepsek" (skipping the second 'e') or "deepseak" (adding an 'a' to match the spoken stress).
The official company name in English is DeepSeek, sometimes written as DeepSeek AI. In Chinese it is 深度求索 (Shēndù Qiúsuǒ), which literally translates to "deep search" or "deep seek" — exactly the origin of the English brand.
Whichever spelling brought you here, you've landed in the right place. Continue to our DeepSeek AI guide or jump straight into the free chat.
FAQ
Is it DeepSeek or Deep Seek?
The official brand name is DeepSeek — one word, camelCase. 'Deep Seek' as two words is a common spelling variant that search engines recognise, but the company itself never writes it that way.
Is 'deepsek' the same as DeepSeek?
Yes — 'deepsek' is the most common typo for DeepSeek. People search for it about 18,000 times per month in the US alone. There is no separate product called Deepsek.
How do you pronounce DeepSeek?
DeepSeek is pronounced 'deep-seek' — exactly like the two English words 'deep' and 'seek' read together. The 'ee' sounds are long, as in 'meet' and 'feet'.