Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Sonnet 4.5
68
GPT-5.1
--
Benchmark data for Claude Sonnet 4.5 and GPT-5.1 is coming soon on BenchLM.
Claude Sonnet 4.5
GPT-5.1
$3 / $15
$1.5 / $6
N/A
111 t/s
N/A
57.47s
200K
200K
Benchmark data for Claude Sonnet 4.5 and GPT-5.1 is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-5.1 yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
Claude Sonnet 4.5 is priced at $3.00 input / $15.00 output per 1M tokens, versus $1.50 input / $6.00 output per 1M tokens for GPT-5.1.
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.
Claude Sonnet 4.5: $3.00 input / $15.00 output per 1M tokens GPT-5.1: $1.50 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.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.