Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Mellum2-12B-A2.5B-Thinking
58
Ornith-1.0-397B
96
Pick Ornith-1.0-397B if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Coding
+12.5 difference
Mellum2-12B-A2.5B-Thinking
Ornith-1.0-397B
N/A
$0 / $0
N/A
N/A
N/A
N/A
128K
262K
Pick Ornith-1.0-397B if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Thinking only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.
Ornith-1.0-397B is clearly ahead on the provisional aggregate, 96 to 58. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Ornith-1.0-397B's sharpest advantage is in coding, where it averages 82.4 against 69.9.
Ornith-1.0-397B gives you the larger context window at 262K, compared with 128K for Mellum2-12B-A2.5B-Thinking.
Ornith-1.0-397B is ahead on BenchLM's provisional leaderboard, 96 to 58.
Ornith-1.0-397B has the edge for coding in this comparison, averaging 82.4 versus 69.9. Mellum2-12B-A2.5B-Thinking stays close enough that the answer can still flip depending on your workload.
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