Is the word somos the same in Brazilian and European Portuguese?

Yes

The word "somos" is identical in meaning, spelling, and grammatical function (it is the first-person plural present indicative of the verb ser) in both Brazilian and European Portuguese. The only difference is pronunciation. In Brazilian Portuguese, the vowels are typically more open and clearly articulated. In European Portuguese, unstressed vowels are often "reduced" or "closed," meaning the "o" in "somus" may sound much more muffled or almost like a very short "u."

Brazilian Portuguese Examples

1. Nós somos muito amigos. (We are very close friends.)
2. Somos uma equipe nota dez. (We are a top-notch team.)
3. Nós somos brasileiros. (We are Brazilians.)
4. Somos parte do time. (We are part of the team.)
5. Nós somos muito legais. (We are very cool.)

European Portuguese Examples

1. Somos muito amigos. (We are very close friends.)
2. Somos uma equipa excelente. (We are an excellent team.)
3. Somos portugueses. (We are Portuguese.)
4. Somos parte da equipa. (We are part of the team.)
5. Somos muito porreiros. (We are very cool.)