Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.4 Pro
91
Z-1
--
Benchmark data for GPT-5.4 Pro and Z-1 is coming soon on BenchLM.
GPT-5.4 Pro
Z-1
$30 / $180
$null / $null
74 t/s
N/A
151.79s
N/A
1.05M
128K
Benchmark data for GPT-5.4 Pro and Z-1 is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for Z-1 yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.4 Pro has the larger context window at 1.05M, compared with 128K for Z-1.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
GPT-5.4 Pro: $30.00 input / $180.00 output per 1M tokens Z-1: Pricing unavailable Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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