Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.1-Codex
18
GPT-5.4 Pro
91
Benchmark data for GPT-5.1-Codex and GPT-5.4 Pro is coming soon on BenchLM.
GPT-5.1-Codex
GPT-5.4 Pro
N/A
$30 / $180
N/A
74 t/s
N/A
151.79s
400K
1.05M
Benchmark data for GPT-5.1-Codex and GPT-5.4 Pro is coming soon on BenchLM.
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
GPT-5.4 Pro has the larger context window at 1.05M, compared with 400K for GPT-5.1-Codex.
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 Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.