While both 'although' and 'albeit' are conjunctions, the grammatical structures of sentences that use them are different. 'Although' is followed by a [dependent clause]() that contains a [subject]() and a verb. 'Albeit', on the other hand, is followed by a noun phrase or an adjective phrase, and it functions as a conjunction that introduces a concessive or limiting phrase. Have a look:

'Although' is used to introduce a clause that presents a contrast or opposition to the main clause. This contrast is often between two ideas that are seemingly contradictory or opposite. 'Albeit' is used to introduce a clause that expresses a concession or limitation to the main clause. This concession may acknowledge a potential obstacle or limitation to the main clause, but still affirms its validity or relevance. Pay attention to the examples:

'Although' is a more common and versatile conjunction that can be used in a variety of contexts to introduce clauses expressing contrast or opposition. It is suitable for both formal and informal writing and speech.
'Albeit', on the other hand, is a more formal and less common conjunction that is often used in academic or literary contexts to introduce clauses expressing a concession or limitation. It is not as versatile as 'although', and is less commonly used in everyday conversation.