Russia has freed US basketball star Brittney Griner in a high-level prisoner exchange, with the US releasing notorious Russian arms dealer Viktor Bout.

Brittney Griner and Viktor Bout are accused of hugely different crimes, but the circumstances and political pressure on both sides reversed this imbalance.

Bruce Wolpe is a senior fellow at the United States Studies Centre at the University of Sydney and he told ABC NewsRadio's Thomas Oriti it was a win for US President Joe Biden.