Context : [ GKH94 ] 41 and IRAS 04191+1523B were previously identified to be proto-brown dwarf candidates in Taurus .
[ GKH94 ] 41 was classified to be a class I object .
The dereddened spectral energy distribution of the source was later found to be suggestive of a class II object .
IRAS 04191+1523B is a class I object that is the secondary component of a binary .

Aims : We determine the evolutionary stage of [ GKH94 ] 41 and estimate the final masses of the two proto-brown dwarf candidates .

Methods : We used archive millimeter observations to produce continuum maps and collected data from the literature to construct the spectral energy distribution of the targets .

Results : Our continuum maps revealed that both [ GKH94 ] 41 and IRAS 04191+1523B are surrounded by envelopes .
This provides direct evidence that [ GKH94 ] 41 is a class I object , not class II , as previously classified .
For IRAS 04191+1523B , our continuum map spatially resolved the binary .
Our estimated final masses are below 49 ^ { +56 } _ { -27 } M _ { J } and 75 ^ { +40 } _ { -26 } M _ { J } for [ GKH94 ] 41 and IRAS 04191+1523B , respectively .
This indicates that both sources will likely become brown dwarfs or very low-mass stars .
Therefore , [ GKH94 ] 41 and IRAS 04191+1523B are two new confirmed class I very low-mass objects .
Their existence also supports the scenario that brown dwarfs have the same formation stages as low-mass stars .

Conclusions :