Head-to-head comparison across 1benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Claude Opus 4.6
87
Gemini 3.1 Flash-Lite
48
Verified leaderboard positions: Claude Opus 4.6 #6 · Gemini 3.1 Flash-Lite unranked
Pick Claude Opus 4.6 if you want the stronger benchmark profile. Gemini 3.1 Flash-Lite only becomes the better choice if you want the cheaper token bill.
Multimodal
+4.1 difference
Claude Opus 4.6
Gemini 3.1 Flash-Lite
$5 / $25
$0.25 / $1.5
40 t/s
205 t/s
1.78s
7.50s
1M
1M
Pick Claude Opus 4.6 if you want the stronger benchmark profile. Gemini 3.1 Flash-Lite only becomes the better choice if you want the cheaper token bill.
Claude Opus 4.6 is clearly ahead on the provisional aggregate, 87 to 48. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Claude Opus 4.6's sharpest advantage is in multimodal & grounded, where it averages 77.3 against 73.2.
Claude Opus 4.6 is also the more expensive model on tokens at $5.00 input / $25.00 output per 1M tokens, versus $0.25 input / $1.50 output per 1M tokens for Gemini 3.1 Flash-Lite. That is roughly 16.7x on output cost alone.
Claude Opus 4.6 is ahead on BenchLM's provisional leaderboard, 87 to 48.
Claude Opus 4.6 has the edge for multimodal and grounded tasks in this comparison, averaging 77.3 versus 73.2. Inside this category, AA-MMMU-Pro is the benchmark that creates the most daylight between them.
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