Mr Netanyahu, who was speaking on the eve of meeting US president Donald Trump, has come under heavy international pressure to end the war, especially during the ongoing offensive in Gaza City.
The death toll in the Israel-Hamas war has topped 66,000 Palestinians, Gaza’s health ministry said on Sunday.
In Monday’s White House meeting, Mr Trump is expected to share a new proposal for ending the conflict.
“We’re working on it,” Mr Netanyahu told Fox News Sunday’s The Sunday Briefing.
“It’s not been finalised yet, but we’re working with President Trump’s team, actually as we speak, and I hope we can – we can make it a go.”
Arab officials briefed on the plan say the 21-point proposal calls for an immediate ceasefire, the release of all hostages held by Hamas within 48 hours and a gradual