Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.1-Codex-Max
75
Sakana Fugu Ultra
100
Benchmark data for GPT-5.1-Codex-Max and Sakana Fugu Ultra is coming soon on BenchLM.
GPT-5.1-Codex-Max
Sakana Fugu Ultra
$1.25 / $10
$5 / $30
N/A
N/A
N/A
N/A
400K
1M
Benchmark data for GPT-5.1-Codex-Max and Sakana Fugu Ultra 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.
Sakana Fugu Ultra is priced at $5.00 input / $30.00 output per 1M tokens, versus $1.25 input / $10.00 output per 1M tokens for GPT-5.1-Codex-Max. Sakana Fugu Ultra has the larger context window at 1M, compared with 400K for GPT-5.1-Codex-Max.
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-5.1-Codex-Max: $1.25 input / $10.00 output per 1M tokens Sakana Fugu Ultra: $5.00 input / $30.00 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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