Head-to-head comparison across 3benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Ling 2.6 Flash
36
Mellum2-12B-A2.5B-Instruct
27
Pick Ling 2.6 Flash if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Instruct only becomes the better choice if instruction following is the priority.
Coding
+10.2 difference
Knowledge
+18.1 difference
Inst. Following
+18.8 difference
Ling 2.6 Flash
Mellum2-12B-A2.5B-Instruct
$null / $null
N/A
209.5 t/s
N/A
1.07s
N/A
262K
128K
Pick Ling 2.6 Flash if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Instruct only becomes the better choice if instruction following is the priority.
Ling 2.6 Flash is clearly ahead on the provisional aggregate, 36 to 27. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Ling 2.6 Flash's sharpest advantage is in knowledge, where it averages 59 against 40.9. The single biggest benchmark swing on the page is GPQA, 59% to 40.9%. Mellum2-12B-A2.5B-Instruct does hit back in instruction following, so the answer changes if that is the part of the workload you care about most.
Ling 2.6 Flash gives you the larger context window at 262K, compared with 128K for Mellum2-12B-A2.5B-Instruct.
Ling 2.6 Flash is ahead on BenchLM's provisional leaderboard, 36 to 27. The biggest single separator in this matchup is GPQA, where the scores are 59% and 40.9%.
Ling 2.6 Flash has the edge for knowledge tasks in this comparison, averaging 59 versus 40.9. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Mellum2-12B-A2.5B-Instruct has the edge for coding in this comparison, averaging 37.2 versus 27. Ling 2.6 Flash stays close enough that the answer can still flip depending on your workload.
Mellum2-12B-A2.5B-Instruct has the edge for instruction following in this comparison, averaging 75.8 versus 57. Ling 2.6 Flash stays close enough that the answer can still flip depending on your workload.
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