Claude Opus 4.7 vs Gemini 3 Pro

  • Claude Opus 4.7 rates higher on LMArena’s text leaderboard: 1490 against 1480.
  • On the 8 Vals AI benchmarks both have taken, Claude Opus 4.7 wins 3 and Gemini 3 Pro wins 5 (Claude Opus 4.7: SWE-bench, Vibe Code Bench, MedCode).
LMArena text rating over time
14601473148514981510Nov 25Feb 26May 26Jul 26Oct 26
LatestClaude Opus 4.7 1490Gemini 3 Pro 1480

Side by side

Models (2/6)
  • Claude Opus 4.7
  • Gemini 3 Pro
BenchmarkClaude Opus 4.7Gemini 3 Pro
The model
LabAnthropicGoogle
Released2026-04-16—
WeightsProprietaryProprietary
Context window1M—
Input, per 1M tokens$5—
Output, per 1M tokens$25—
LMArena, people’s votes
LMArena TextMillions of people compare two anonymous models side by side and vote for the better answer1490#13 of 3511480#21 of 351
LMArena WebDevPeople ask two anonymous models to build the same web app, try both and vote for the better one1558#41 of 1241440#80 of 124
LMArena VisionSide-by-side votes on prompts that include an image1317#5 of 1461305#16 of 146
LMArena CodingLMArena’s text votes on prompts that ask for code1518#9 of 3461481#55 of 346
LMArena MathLMArena’s text votes on math prompts1498#17 of 3391476#38 of 339
LMArena Creative writingLMArena’s text votes on stories, poems and other creative writing1486#11 of 3491483#13 of 349
LMArena Hard promptsLMArena’s text votes on the hardest prompts1506#11 of 3511480#39 of 351
LMArena Instruction followingLMArena’s text votes on prompts with specific instructions to follow1498#9 of 3511458#43 of 351
Vals AI, coding
SWE-benchReal GitHub issues from open-source projects82.00%#21 of 8576.40%#37 of 85
Vibe Code BenchBuilding complete web apps from a plain-language brief, graded on whether the app works71.00%#41 of 11514.30%#91 of 115
LiveCodeBenchFresh competitive programming problems, collected after models’ training cut-offs to avoid contamination85.07%#36 of 14386.41%#23 of 143
Vals AI, finance
Tax Agent BenchAgentic research into US corporate tax questions23.74%#43 of 76—
Vals AI, law
Legal Research BenchAgentic US legal research38.46%#35 of 85—
Vals AI, medicine
MedCodeAssigning the right medical billing codes from clinical notes54.86%#7 of 10752.20%#14 of 107
MedQAMedical licensing exam questions, measured on accuracy and on robustness to bias—96.03%#8 of 92
Vals AI, reasoning
GPQA DiamondGraduate-level questions in biology, physics and chemistry that experts answer well and search does not90.15%#26 of 13891.67%#19 of 138
MMLU-ProHarder, reasoning-focused multiple choice across 14 subjects, from law to engineering89.87%#8 of 13890.10%#7 of 138
AIMEProblems from the American Invitational Mathematics Examination, a qualifier for the US Math Olympiad96.25%#7 of 9696.68%#4 of 96
MMMUCollege-level questions that need both an image and text85.55%#24 of 9387.51%#14 of 93

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Questions

Which is better, Claude Opus 4.7 or Gemini 3 Pro?

Claude Opus 4.7 rates higher on LMArena’s text leaderboard: 1490 against 1480. On the 8 Vals AI benchmarks both have taken, Claude Opus 4.7 wins 3 and Gemini 3 Pro wins 5 (Claude Opus 4.7: SWE-bench, Vibe Code Bench, MedCode).

Sources

Every number on this page comes from these sources; models without a published number show none. Download the data. Cite as “Nexus Explorer, nexus.inc/models”.