のと違う

different from what

→ の
phrase Rare #43,108
different from what の turns the preceding phrase into “what...” or “the thing...”; と marks what it is being compared with.
JA: この景色は写真で見たのと違う。
EN: This view is different from what I saw in the photo.

これは私が思っていたのと違うな。

This isn't what I had in mind.

想像してたのと違う

It's different from what I imagined.

— ダーク・プレイス (2015)

君がやったのと違うやり方で僕ならするだろう。

I would do it differently than you did.

想像していたのと違うわね

It’s different from what I imagined.

— レベッカ (1940)