What was the valuation for Reddit in a private fundraising round last year?

The text you provided earlier mentions the valuation for Reddit in a private fundraising round last year:

Fidelity has cut Reddit valuation by 41.1% cumulatively since August 2021 when the asset manager spent $28.2 million to acquire the Reddit shares. Reddit was valued at $10 billion when the social media giant attracted funds in August 2021.

Therefore, according to the information provided, Reddit's valuation in a private fundraising round in August 2021 was $10 billion.