
ALT Antibody–antigen test-time scaling on MolBench-AB-26. Mean DockQ is plotted against the number of sampled seeds from 1 to 100 on a logarithmic axis. Blue curves show Mol-1 with 10, 20, and 30 recycling cycles; gray curves show OpenDDE and ESMFold2. Default 20-cycle Mol-1 improves from 0.359 mean DockQ at 1 seed to 0.463 at 100 seeds. For each pair, the highest-confidence candidate is selected from K seeds with 5 samples per seed.

ALT Recycling and sampling efficiency of Mol-1 on MolBench-AB-26. Success means DockQ greater than 0.23, with 5 samples per seed. Three configurations achieve similar success rates: 30 cycles × 5 seeds, 58.64%; 20 cycles × 10 seeds, 58.83%; and 10 cycles × 40 seeds, 58.69%. Their horizontal positions correspond to cycle × seed budgets of 150, 200, and 400. Deeper recycling achieves comparable accuracy with fewer seeds.

ALT Published large-complex predictions in a 5-column, 4-row grid. Each pair of rows compares Anthropic (above) with Mol-1 agent (below) for the same PDB. Top group, Anthropic/Mol-1 TM-scores: 7NAP 0.69/0.985; 9WIE 0.73/0.981; 7VCU 0.54/0.914; 8SU9 0.81/0.895; 7UTD 0.96/0.478. Bottom group: Anthropic reports collapsed structures for all five cases; Mol-1 scores are 1LP3 0.999, 9C3J 0.997, 6HTX 0.995, 9EQW 0.997, 9P4N 0.993. The largest is 9EQW: 60,120 residues, 120 chains. Anthropic used 8 H100/B200 GPUs for the smaller group and 8 B300 GPUs for the larger group; Mol-1 used one H20. Different inference settings; cross-report comparison. Original views are independently scaled. Mol-1 blue is prediction, gray is experiment. Sources: Anthropic report Figures 7-8; Mol-1 report Figure 6.

ALT Two panels show FoldBench-AB success rates and the distribution over all 201,376 five-seed combinations from 32 seeds. Mol-1 scores 75.0%, compared with IsoDDE's plotted 75.6%; Mol-1 with constraints scores 88.3%. In the distribution, 62.22% of combinations reach at least 75% success and 17.85% reach at least 76%.


