We should not give importance to speculation and we can not judge the talks until we get to a clear result, Araqchi added.
Parliament Speaker Mohammad Bagher Ghalibaf said earlier on Sunday that Iran would only sign a framework agreement with the US once concrete concessions - including the release of billions in frozen accounts - had been secured.
Ghalibaf, Iran's chief negotiator, reiterated during an online parliamentary session that Iran would not accept any agreement until there was certainty that the rights of the Iranian people were safeguarded, state news agency IRNA reported.
"We trust neither guarantees nor words - only actions count. No measures will be taken until the other side acts," Ghalibaf said on Friday on X.
For days, the US and Iran have been wrangling over a framework agreement to extend the ceasefire in place since April 8 and to allow for further negotiations.
The Fars news agency, which is close to the country's powerful Revolutionary Guards (IRGC), reported that immediately after the signing of a provisional agreement, $US12 billion ($A17 billion) in frozen Iranian foreign accounts would have to be released.
Ghalibaf, who on Sunday was sworn in as Iran's re-elected Speaker, called on members of the 290-seat unicameral parliament to promote national unity, urging them to steer clear of "trivial political disputes".
"In this new phase of the war, the enemy is attempting to foment divisions and destroy the country's unity through economic pressure and media smear campaigns, in order to cover up its military defeat and force us to surrender," Ghalibaf said.
with DPA
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