From Goldman Sachs:
We launched our Q2 GDP tracking estimate at +10.5% (qoq ar). [Apr 30 estimate]
emphasis added
From the NY Fed Nowcasting Report
The New York Fed Staff Nowcast stands at 5.3% for 2021:Q2. [Apr 30 estimate]
And from the Altanta Fed: GDPNow
The GDPNow model estimate for real GDP growth (seasonally adjusted annual rate) in the second quarter of 2021 is 10.4 percent on April 30. [Apr 30 estimate]