Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.1-Codex-Max
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o3
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Benchmark data for GPT-5.1-Codex-Max and o3 is coming soon on BenchLM.
GPT-5.1-Codex-Max
o3
$2 / $8
$10 / $40
N/A
118 t/s
N/A
5.38s
400K
200K
Benchmark data for GPT-5.1-Codex-Max and o3 is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-5.1-Codex-Max and o3 yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
o3 is priced at $10.00 input / $40.00 output per 1M tokens, versus $2.00 input / $8.00 output per 1M tokens for GPT-5.1-Codex-Max. GPT-5.1-Codex-Max has the larger context window at 400K, compared with 200K for o3.
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-5.1-Codex-Max: $2.00 input / $8.00 output per 1M tokens o3: $10.00 input / $40.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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