Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.4 mini
68
Ornith-1.0-397B
96
Pick Ornith-1.0-397B if you want the stronger benchmark profile. GPT-5.4 mini only becomes the better choice if you need the larger 400K context window.
Agentic
+11.9 difference
GPT-5.4 mini
Ornith-1.0-397B
$0.75 / $4.5
$0 / $0
201 t/s
N/A
3.85s
N/A
400K
262K
Pick Ornith-1.0-397B if you want the stronger benchmark profile. GPT-5.4 mini only becomes the better choice if you need the larger 400K context window.
Ornith-1.0-397B is clearly ahead on the provisional aggregate, 96 to 68. 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 agentic, where it averages 77.5 against 65.6. The single biggest benchmark swing on the page is Terminal-Bench 2.0, 60% to 77.5%.
GPT-5.4 mini is also the more expensive model on tokens at $0.75 input / $4.50 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Ornith-1.0-397B. That is roughly Infinityx on output cost alone. GPT-5.4 mini gives you the larger context window at 400K, compared with 262K for Ornith-1.0-397B.
Ornith-1.0-397B is ahead on BenchLM's provisional leaderboard, 96 to 68. The biggest single separator in this matchup is Terminal-Bench 2.0, where the scores are 60% and 77.5%.
Ornith-1.0-397B has the edge for agentic tasks in this comparison, averaging 77.5 versus 65.6. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
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