Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.1-Codex
18
Grok 4.1 Fast (Reasoning)
17
Benchmark data for GPT-5.1-Codex and Grok 4.1 Fast (Reasoning) is coming soon on BenchLM.
GPT-5.1-Codex
Grok 4.1 Fast (Reasoning)
N/A
N/A
N/A
N/A
N/A
N/A
400K
2M
Benchmark data for GPT-5.1-Codex and Grok 4.1 Fast (Reasoning) 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.
Grok 4.1 Fast (Reasoning) has the larger context window at 2M, 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.
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