Noometry

Model comparison

Claude Fable 5 vs Gemini 3 Deep Think

Claude Fable 5 has enough public results to be ranked (#5); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

Last verified . 3 shared benchmarks.

Claude Fable 5 Anthropic

66.8

Rank #5 Confirmed

Gemini 3 Deep Think Google

58.3

Unranked Sparse

Summary

  • They share 3 benchmarks with published results for both. Claude Fable 5 scores higher in 1 category and Gemini 3 Deep Think in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Fable 5 leads 76.8 to 70.2.

Side by side

Claude Fable 5Gemini 3 Deep Think
ProviderAnthropicGoogle
Noometry Index66.858.3
Released2026-06-072026-02-12
WeightsProprietaryProprietary
Context window1M—
Max output128K—
Input $ / M tokens$10—
Output $ / M tokens$50—
Results tracked623

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Category by category

Coding Not comparable

Claude Fable 5: 70.6 (#4), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
DeepSWE69.9%—
FrontierCode53.5%—
LMArena WebDev1625—
FrontierSWE47%—
SciCode61%—
GSO78.4%—
WeirdML91.9%—
LMArena Coding1519—
MirrorCode63.9%—
ALE-Bench2,041—

Agentic & Tool Use Not comparable

Claude Fable 5: 54.0 (#2), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
APEX-Agents63.6%—
Remote Labor Index16.1%—
τ²-bench Banking39.7%—
PostTrainBench41.8%—
GBAEval74.5%—
GDP.pdf30%—
LMArena Search1230—
Vending-Bench 25,680—

Reasoning Claude Fable 5 leads

Claude Fable 5: 76.8 (#6), Gemini 3 Deep Think: 70.2 (#14)

BenchmarkClaude Fable 5Gemini 3 Deep Think
ARC-AGI-289.2%84.6%
ARC-AGI-198.5%96%
CritPt28.6%25.7%
SimpleBench81.9%—
Kagi LLM Benchmark91.4%—
NYT Connections (extended)92.7%—
Chess Puzzles41%—
EnigmaEval39.3%—
EBR-Bench39.5%—
LMArena Hard Prompts1508—
Mystery Game Puzzles52%—
DTBench98.4%—
LMCA61.1%—
Surface Evolver Bench95%—
Bench to the Future 30.13—
Epoch Capabilities Index162.06—

Math Not comparable

Claude Fable 5: 88.5 (#5), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
FrontierMath (Tiers 1-3)87%—
FrontierMath Tier 490.2%—
OTIS Mock AIME 2024-2025100%—
ProofBench95%—
LMArena Math1519—
FrontierMath Erdős0%—

Knowledge Not comparable

Claude Fable 5: 62.2 (#25), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
GPQA Diamond85.9%—
SimpleQA Verified70.7%—
LMArena Expert1534—

Multimodal Not comparable

Claude Fable 5: 45.3 (#17), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
LMArena Vision1324—
Blueprint-Bench 238.6%—
Furniture Assembly35.8%—
LMArena Document1496—

Multilingual Not comparable

Claude Fable 5: 57.3 (#9), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
LMArena Non-English1481—
LMArena Chinese1543—
LMArena French1505—
LMArena German1486—
LMArena Japanese1506—
LMArena Korean1488—
LMArena Russian1504—
LMArena Spanish1498—

Instruction Following Not comparable

Claude Fable 5: 78.6 (#8), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
LMArena Instruction Following1502—

Long Context Not comparable

Claude Fable 5: 46.3 (#23), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
LMArena Longer Query1509—

Writing & Preference Not comparable

Claude Fable 5: 75.9 (#5), Gemini 3 Deep Think: —

BenchmarkClaude Fable 5Gemini 3 Deep Think
LMArena Text1491—
LMArena Creative Writing1494—
EQ-Bench Creative Writing1943—
EQ-Bench 41340—
LMArena Multi-Turn1504—

Frequently asked questions

Is Claude Fable 5 better than Gemini 3 Deep Think?

Claude Fable 5 has enough public results to be ranked (#5); Gemini 3 Deep Think does not yet, so treat this comparison as directional.

How many benchmarks do Claude Fable 5 and Gemini 3 Deep Think share?

3 benchmarks have published results for both models. Claude Fable 5 has 62 scored results on Noometry and Gemini 3 Deep Think has 3.

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