Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Grok 4.20
65
Interfaze Beta
76
Pick Interfaze Beta if you want the stronger benchmark profile. Grok 4.20 only becomes the better choice if you need the larger 2M context window.
Multimodal
+0.3 difference
Grok 4.20
Interfaze Beta
$2 / $6
$1.5 / $3.5
233 t/s
N/A
10.33s
N/A
2M
1M
Pick Interfaze Beta if you want the stronger benchmark profile. Grok 4.20 only becomes the better choice if you need the larger 2M context window.
Interfaze Beta is clearly ahead on the provisional aggregate, 76 to 65. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Interfaze Beta's sharpest advantage is in multimodal & grounded, where it averages 71.1 against 70.8. The single biggest benchmark swing on the page is MMMU-Pro, 75.2% to 71.1%.
Grok 4.20 is also the more expensive model on tokens at $2.00 input / $6.00 output per 1M tokens, versus $1.50 input / $3.50 output per 1M tokens for Interfaze Beta. Grok 4.20 gives you the larger context window at 2M, compared with 1M for Interfaze Beta.
Interfaze Beta is ahead on BenchLM's provisional leaderboard, 76 to 65. The biggest single separator in this matchup is MMMU-Pro, where the scores are 75.2% and 71.1%.
Interfaze Beta has the edge for multimodal and grounded tasks in this comparison, averaging 71.1 versus 70.8. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
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