Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.3 Codex
87
Holo3-122B-A10B
75
Pick GPT-5.3 Codex if you want the stronger benchmark profile. Holo3-122B-A10B only becomes the better choice if agentic is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Agentic
+7.4 difference
GPT-5.3 Codex
Holo3-122B-A10B
$1.75 / $14
$null / $null
79 t/s
N/A
88.26s
N/A
400K
64K
Pick GPT-5.3 Codex if you want the stronger benchmark profile. Holo3-122B-A10B only becomes the better choice if agentic is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
GPT-5.3 Codex is clearly ahead on the provisional aggregate, 87 to 75. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
GPT-5.3 Codex is the reasoning model in the pair, while Holo3-122B-A10B is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. GPT-5.3 Codex gives you the larger context window at 400K, compared with 64K for Holo3-122B-A10B.
GPT-5.3 Codex is ahead on BenchLM's provisional leaderboard, 87 to 75. The biggest single separator in this matchup is OSWorld-Verified, where the scores are 64.7% and 78.8%.
Holo3-122B-A10B has the edge for agentic tasks in this comparison, averaging 78.9 versus 71.5. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.
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