Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.4 nano
60
GPT-5.6 Luna
--
Benchmark data for GPT-5.4 nano and GPT-5.6 Luna is coming soon on BenchLM.
GPT-5.4 nano
GPT-5.6 Luna
$0.2 / $1.25
$1 / $6
191 t/s
N/A
3.64s
N/A
400K
1M
Benchmark data for GPT-5.4 nano and GPT-5.6 Luna is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-5.6 Luna yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.6 Luna is priced at $1.00 input / $6.00 output per 1M tokens, versus $0.20 input / $1.25 output per 1M tokens for GPT-5.4 nano. GPT-5.6 Luna has the larger context window at 1M, compared with 400K for GPT-5.4 nano.
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-5.4 nano: $0.20 input / $1.25 output per 1M tokens GPT-5.6 Luna: $1.00 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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