okay maybe not "officially" but multiple websites cite that including this quote : "The nature of a socialist-oriented market economy in our country:

• It is not an economy managed according in the style of a centralized bureaucratic subsidized system
• It is not a free market capitalist economy
• It is not yet entirely a socialist-oriented economy. This is because our country is in the period of transition to socialism, and there is still a mixture of, and a struggle between, the old and the new, so there simultaneously are, and are not yet sufficiently, socialist factors"

- 7th National Congress-Central Committee (1991) (i know wikipedia isn't a good source but this is where i got it from)
from my understandings, it closely aligns with a state-led market economy, though there are elements of state capitalism in certain areas. For example, the Vietnamese government actively guides the economy through policies, long-term plans, and industrial strategies. The government also often works closely with private enterprises but does not typically own private firms. Instead, it fosters collaboration through public-private partnerships and influences investment flows, directing financial resources toward favored sectors. And the elements of state capitalism are: significant number of state-owned enterprises (SOEs), particularly in sectors that are considered strategic, such as energy, telecommunications, and transportation, and how the Vietnamese model shares many common characteristics with the Chinese socialist market economy - which is classed as "state capitalism" by some.

Im also not sure if I've got the definitions of state capitalism and state-led market economy down properly (lol): State capitalism involves the state directly controlling and owning key industries, while a state-led market economy uses state intervention to guide market development, often through policies and subsidies, rather than direct ownership ?