Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.3 Codex
85
MiMo-V2-Pro
84
Pick GPT-5.3 Codex if you want the stronger benchmark profile. MiMo-V2-Pro only becomes the better choice if coding is the priority or you need the larger 1M context window.
Coding
+14.9 difference
GPT-5.3 Codex
MiMo-V2-Pro
$1.75 / $14
N/A
79 t/s
N/A
88.26s
N/A
400K
1M
Pick GPT-5.3 Codex if you want the stronger benchmark profile. MiMo-V2-Pro only becomes the better choice if coding is the priority or you need the larger 1M context window.
GPT-5.3 Codex finishes one point ahead on BenchLM's provisional leaderboard, 85 to 84. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.
MiMo-V2-Pro gives you the larger context window at 1M, compared with 400K for GPT-5.3 Codex.
GPT-5.3 Codex is ahead on BenchLM's provisional leaderboard, 85 to 84. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 85% and 78%.
MiMo-V2-Pro has the edge for coding in this comparison, averaging 78 versus 63.1. Inside this category, Terminal-Bench Hard is the benchmark that creates the most daylight between them.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.