There are six philosophical systems in Hinduism: Sankhya, Yoga, Nyaya, Vaisheshika, Mimamsa and Vedanta.
What is each school's opinion on Puranas? Do they accept the puranas as authentic or they reject or don't comment on them?
Hinduism Stack Exchange is a question and answer site for followers of the Hindu religion and those interested in learning more about Hinduism. It only takes a minute to sign up.Sign up to join this community
Vedanta: PURĀNAS are only Accepted as Fully Authoritative by VEDANTA school of Thought.
Vaishnava Vedanta Schools are built on Purānas itself. Vishnu and Bhāgavatam are the most Important Purānas for them. For Shaktism it’s Devi Bhāgavatam. Puranic Shaiva Vedanta Schools accept Shaiva Purānas are the ultimate Supreme Purānas. Smartha Advaita Vedanta Sect also accepts all Purānas as well as Upa-Purānas. (Modern Neo Advaita doesn’t care about Puranas though).
Mimamsa rejects them as meaningless.
Nyaya, Vaisheshika and Navya Nyaya doesn’t care about Puranas as their philosophies aren’t built up on them. They don’t view them as authoritative.
Classical Samkhya and Yoga too do not care about Puranas as their philosophies aren’t built up on them (though Purānas mention many philosophical discourses on Samkhya and Yoga. But note: Puranic Samkhya and Classical Samkhya of Isvara Krishna are different).
Conclusion: Only Vedanta School of Thought accepts them as fully authoritative next to Vedas.