636</td>
<td>67.2020</td>
<td><a href="https://ml.materialsproject.org/projects/matbench_jdft2d.json.gz">download</a>, <a href="https://ml.materialsproject.org/projects/matbench_jdft2d">interactive</a></td>
<td>16</td>
</tr>
<tr>
<td><code>matbench_phonons</code></td>
<td>regression/structure</td>
<td><code>last phdos peak</code> (cm^-1)</td>
<td>1,265</td>
<td>323.7870</td>
<td><a href="https://ml.materialsproject.org/projects/matbench_phonons.json.gz">download</a>, <a href="https://ml.materialsproject.org