Noometry

Model comparison

Claude Opus 4.8 vs Gemini 3 Deep Think

Claude Opus 4.8 has enough public results to be ranked (#13); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

Last verified . 3 shared benchmarks.

Claude Opus 4.8 Anthropic

60.7

Rank #13 Confirmed

Gemini 3 Deep Think Google

58.3

Unranked Sparse

Summary

  • They share 3 benchmarks with published results for both. Claude Opus 4.8 scores higher in 0 categories and Gemini 3 Deep Think in 1 category; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where Gemini 3 Deep Think leads 70.2 to 64.7.
  • The biggest single-benchmark swing is ARC-AGI-2: 72.1% for Claude Opus 4.8 and 84.6% for Gemini 3 Deep Think.

Side by side

Claude Opus 4.8Gemini 3 Deep Think
ProviderAnthropicGoogle
Noometry Index60.758.3
Released2026-05-282026-02-12
WeightsProprietaryProprietary
Context window1M—
Max output128K—
Input $ / M tokens$5—
Output $ / M tokens$25—
Results tracked653

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Category by category

Coding Not comparable

Claude Opus 4.8: 59.9 (#12), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
DeepSWE59%—
FrontierCode46.5%—
LMArena WebDev1556—
SciCode53.5%—
GSO47.1%—
WeirdML82.9%—
LMArena Coding1490—
ALE-Bench1,564—

Agentic & Tool Use Not comparable

Claude Opus 4.8: 47.6 (#11), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
APEX-Agents48.9%—
OSWorld 2.020.6%—
Remote Labor Index8.3%—
τ²-bench Banking39.7%—
DeepResearch Bench50.2%—
PostTrainBench33.8%—
GBAEval70.9%—
GDP.pdf24%—
LMArena Search1204—
Vending-Bench 25,787—

Reasoning Gemini 3 Deep Think leads

Claude Opus 4.8: 64.7 (#16), Gemini 3 Deep Think: 70.2 (#14)

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
ARC-AGI-272.1%84.6%
ARC-AGI-192.5%96%
CritPt20.9%25.7%
SimpleBench64.8%—
Kagi LLM Benchmark88.8%—
NYT Connections (extended)91.1%—
Chess Puzzles34%—
EnigmaEval23.5%—
EBR-Bench28.6%—
LMArena Hard Prompts1482—
Mystery Game Puzzles36%—
DTBench94.9%—
LMCA57.5%—
Surface Evolver Bench87.5%—
Bench to the Future 30.14—
Epoch Capabilities Index158.21—
ForecastBench59.9—

Math Not comparable

Claude Opus 4.8: 78.4 (#13), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
FrontierMath (Tiers 1-3)80%—
FrontierMath Tier 456.1%—
MathArena Final-Answer Competitions91.8%—
OTIS Mock AIME 2024-202598.3%—
ProofBench69%—
LMArena Math1487—
FrontierMath (Feb 2025 set)47.2%—
FrontierMath Tier 4 (v1)31.3%—

Knowledge Not comparable

Claude Opus 4.8: 61.3 (#29), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
GPQA Diamond91%—
SimpleQA Verified53%—
LMArena Expert1502—

Multimodal Not comparable

Claude Opus 4.8: 42.9 (#26), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
LMArena Vision1294—
Blueprint-Bench 214.5%—
Furniture Assembly42.5%—
LMArena Document1475—

Multilingual Not comparable

Claude Opus 4.8: 55.2 (#33), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
LMArena Non-English1450—
LMArena Chinese1507—
LMArena French1481—
LMArena German1472—
LMArena Japanese1440—
LMArena Korean1432—
LMArena Russian1474—
LMArena Spanish1466—

Instruction Following Not comparable

Claude Opus 4.8: 77.4 (#24), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
LMArena Instruction Following1476—

Long Context Not comparable

Claude Opus 4.8: 45.4 (#35), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
LMArena Longer Query1483—

Writing & Preference Not comparable

Claude Opus 4.8: 72.0 (#16), Gemini 3 Deep Think: —

BenchmarkClaude Opus 4.8Gemini 3 Deep Think
LMArena Text1461—
LMArena Creative Writing1454—
EQ-Bench Creative Writing1840—
EQ-Bench 41281—
LMArena Multi-Turn1476—

Frequently asked questions

Is Claude Opus 4.8 better than Gemini 3 Deep Think?

Claude Opus 4.8 has enough public results to be ranked (#13); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

How many benchmarks do Claude Opus 4.8 and Gemini 3 Deep Think share?

3 benchmarks have published results for both models. Claude Opus 4.8 has 65 scored results on Noometry and Gemini 3 Deep Think has 3.

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