Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5 mini
0
Grok 4.20
73
Benchmark data for GPT-5 mini and Grok 4.20 is coming soon on BenchLM.
GPT-5 mini
Grok 4.20
$0.25 / $2
$2 / $6
86 t/s
233 t/s
65.32s
10.33s
128K
2M
Benchmark data for GPT-5 mini and Grok 4.20 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 4.20 is priced at $2.00 input / $6.00 output per 1M tokens, versus $0.25 input / $2.00 output per 1M tokens for GPT-5 mini. Grok 4.20 has the larger context window at 2M, compared with 128K for GPT-5 mini.
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 mini: $0.25 input / $2.00 output per 1M tokens Grok 4.20: $2.00 input / $6.00 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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