Compare / gemini-3-pro-preview vs o4 Mini

gemini-3-pro-preview vs o4 Mini

13 results from 3 sources that measured both models. Each row is in the source's own units; there is no overall winner.

gemini-3-pro-preview
Google · profile
o4 Mini
OpenAI · profile
Results compared
13
Shared sources
3
BenchmarkMetricgemini-3-pro-previewo4 Mini
Berkeley Function Calling Leaderboard (BFCL) V4reportedIrrelevance detection% correct 85.6%87.2%
Berkeley Function Calling Leaderboard (BFCL) V4reportedMemory% correct 61.7%35.3%
Berkeley Function Calling Leaderboard (BFCL) V4reportedMulti-turn tasks% correct 63.1%41.8%
Berkeley Function Calling Leaderboard (BFCL) V4reportedOverall accuracy% correct 72.5%53.2%
Berkeley Function Calling Leaderboard (BFCL) V4reportedRelevance detection% correct 75.0%81.2%
Berkeley Function Calling Leaderboard (BFCL) V4reportedSingle-turn calls (curated)% correct 90.7%81.3%
Berkeley Function Calling Leaderboard (BFCL) V4reportedSingle-turn calls (user-contributed)% correct 83.1%70.8%
Berkeley Function Calling Leaderboard (BFCL) V4reportedWeb search% correct 80.0%75.5%
UGI LeaderboardreportedRequested-length error% off the requested word count 33.0%19.0%
UGI LeaderboardreportedStyle adherencescore from 0 to 1 0.370.33
UGI LeaderboardreportedWriting scorescore out of 100 66.746.9
Vectara Hallucination LeaderboardreportedAnswer rate% of documents 99.4%98.7%
Vectara Hallucination LeaderboardreportedHallucination rate% of summaries 13.6%18.6%

Bold green marks the better value on that metric. Where a source reports ranges that overlap, the difference may not be meaningful; see the benchmark page for ranges.