Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5 (high)
78
Grok 4.3
79
Benchmark data for GPT-5 (high) and Grok 4.3 is coming soon on BenchLM.
GPT-5 (high)
Grok 4.3
$1.25 / $10
$1.25 / $2.5
83 t/s
209 t/s
36.28s
12.36s
128K
1M
Benchmark data for GPT-5 (high) and Grok 4.3 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 (high) is priced at $1.25 input / $10.00 output per 1M tokens, versus $1.25 input / $2.50 output per 1M tokens for Grok 4.3. Grok 4.3 has the larger context window at 1M, compared with 128K for GPT-5 (high).
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 (high): $1.25 input / $10.00 output per 1M tokens Grok 4.3: $1.25 input / $2.50 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.