Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.4 Pro
90
Ornith-1.0-397B
96
Pick Ornith-1.0-397B if you want the stronger benchmark profile. GPT-5.4 Pro only becomes the better choice if agentic is the priority or you need the larger 1.05M context window.
Agentic
+11.8 difference
GPT-5.4 Pro
Ornith-1.0-397B
$30 / $180
$0 / $0
74 t/s
N/A
151.79s
N/A
1.05M
262K
Pick Ornith-1.0-397B if you want the stronger benchmark profile. GPT-5.4 Pro only becomes the better choice if agentic is the priority or you need the larger 1.05M context window.
Ornith-1.0-397B is clearly ahead on the provisional aggregate, 96 to 90. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.4 Pro is also the more expensive model on tokens at $30.00 input / $180.00 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 Pro gives you the larger context window at 1.05M, compared with 262K for Ornith-1.0-397B.
Ornith-1.0-397B is ahead on BenchLM's provisional leaderboard, 96 to 90.
GPT-5.4 Pro has the edge for agentic tasks in this comparison, averaging 89.3 versus 77.5. Ornith-1.0-397B stays close enough that the answer can still flip depending on your workload.
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