Germany, the main European creditor, was quick to say it was deeply skeptical, while the European Commission said it would like to see precisely what the proposal entailed.
Greek government spokesman Gavriil Sakellaridis said Athens' plan would involve extending the 240 billion euro international loan agreement that has kept the country afloat since 2010 but, apparently, without the required spending cuts and tax hikes.
Greek shares closed 1 per cent up in afternoon trading, after days of losses, and the Euro Stoxx 50 index rose 0.5 per cent.
The budget measures have become a major sticking point at this stage of the negotiations.
Both sides agree Greece needs external support to keep it afloat and buy time for more thorough talks.
The new radical left-led government in Athens, however, insists it will not accept any extension of the bailout loans if it requires a continuation of the budget austerity measures such as spending cuts or tax hikes.
Finance Minister Yanis Varoufakis told his eurozone counterparts this week that Greece was "ready and willing to apply for an extension of our loan agreement till the end of August, or any other duration that eurogroup may deem fit.
