Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.4
89
Ling 2.6 Flash
36
Verified leaderboard positions: GPT-5.4 #16 · Ling 2.6 Flash unranked
Pick GPT-5.4 if you want the stronger benchmark profile. Ling 2.6 Flash only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Coding
+30.7 difference
Knowledge
+7.1 difference
GPT-5.4
Ling 2.6 Flash
$2.5 / $15
$null / $null
74 t/s
209.5 t/s
151.79s
1.07s
1.05M
262K
Pick GPT-5.4 if you want the stronger benchmark profile. Ling 2.6 Flash only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
GPT-5.4 is clearly ahead on the provisional aggregate, 89 to 36. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.4's sharpest advantage is in coding, where it averages 57.7 against 27. The single biggest benchmark swing on the page is GPQA, 92.8% to 59%.
GPT-5.4 is the reasoning model in the pair, while Ling 2.6 Flash is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. GPT-5.4 gives you the larger context window at 1.05M, compared with 262K for Ling 2.6 Flash.
GPT-5.4 is ahead on BenchLM's provisional leaderboard, 89 to 36. The biggest single separator in this matchup is GPQA, where the scores are 92.8% and 59%.
GPT-5.4 has the edge for knowledge tasks in this comparison, averaging 66.1 versus 59. Inside this category, AA-Omniscience Index is the benchmark that creates the most daylight between them.
GPT-5.4 has the edge for coding in this comparison, averaging 57.7 versus 27. Inside this category, Terminal-Bench Hard is the benchmark that creates the most daylight between them.
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