Noometry

Model comparison

Grok 4 vs Phi-4

Grok 4 is the stronger model overall, scoring 48.1 to 31.2 on the Noometry Index.

Last verified . 25 shared benchmarks.

Grok 4 xAI

48.1

Rank #56 Confirmed

Phi-4 Microsoft

31.2

Rank #279 Confirmed

Summary

  • They share 25 benchmarks with published results for both. Grok 4 scores higher in 9 categories and Phi-4 in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok 4 leads 48.4 to 20.8.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 84% for Grok 4 and 13.8% for Phi-4.
  • Phi-4 has downloadable open weights; the other is API-only.

Side by side

Grok 4Phi-4
ProviderxAIMicrosoft
Noometry Index48.131.2
Released2025-07-092024-12-11
WeightsProprietaryOpen
Context window—128K
Max output—4K
Input $ / M tokens—$0.07
Output $ / M tokens—$0.14
Results tracked4837

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Category by category

Coding Grok 4 leads

Grok 4: 50.3 (#46), Phi-4: 34.4 (#239)

BenchmarkGrok 4Phi-4
LMArena Coding14081231
Aider Polyglot79.6%—
WeirdML45.7%—
BigCodeBench Instruct—45.5%
LiveBench Coding—30.7%
BigCodeBench Complete—55.4%

Agentic & Tool Use Grok 4 leads

Grok 4: 32.3 (#68), Phi-4: 22.8 (#128)

BenchmarkGrok 4Phi-4
Berkeley Function Calling Leaderboard63%28.8%
BALROG43.6%11.6%
Terminal-Bench27.2%—
GDPval21.1%—
Cybench43%—
DeepResearch Bench47.3%—
LMArena Search1142—
METR Time Horizons66.6%—

Reasoning Grok 4 leads

Grok 4: 36.7 (#65), Phi-4: 17.7 (#291)

BenchmarkGrok 4Phi-4
Chess Puzzles28%1%
LMArena Hard Prompts14091220
Epoch Capabilities Index146.44130.42
ARC-AGI-216%—
SimpleBench60.5%—
Kagi LLM Benchmark73.6%—
ARC-AGI-166.7%—
LiveBench Reasoning—47.8%
LiveBench Data Analysis—45.2%
ForecastBench60.9—
LiveBench—41.6%

Math Grok 4 leads

Grok 4: 48.4 (#64), Phi-4: 20.8 (#285)

BenchmarkGrok 4Phi-4
OTIS Mock AIME 2024-202584%13.8%
LMArena Math14221246
Omni-MATH60.3%—
LiveBench Math—42%
MATH Level 5—64.9%
FrontierMath (Feb 2025 set)19.7%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge Grok 4 leads

Grok 4: 53.8 (#55), Phi-4: 32.6 (#209)

BenchmarkGrok 4Phi-4
GPQA Diamond87%56.1%
Confabulations12.4%29.4%
LMArena Expert14151203
MMLU-Pro85.1%—
Vectara Hallucination Rate—3.7%
GPQA (HELM)72.7%—
MMLU—84.8%

Multimodal Not comparable

Grok 4: 33.7 (#94), Phi-4: —

BenchmarkGrok 4Phi-4
LMArena Vision1210—
GeoBench45%—

Multilingual Grok 4 leads

Grok 4: 51.8 (#103), Phi-4: 37.2 (#237)

BenchmarkGrok 4Phi-4
LMArena Non-English14031197
LMArena Chinese14271212
LMArena French14181224
LMArena German14291222
LMArena Japanese13941158
LMArena Korean13771151
LMArena Russian14101209
LMArena Spanish14201234

Instruction Following Grok 4 leads

Grok 4: 79.2 (#5), Phi-4: 60.4 (#251)

BenchmarkGrok 4Phi-4
LMArena Instruction Following13871201
LiveBench Instruction Following—58.4%
IFEval94.9%—

Long Context Grok 4 leads

Grok 4: 63.1 (#4), Phi-4: 36.9 (#226)

BenchmarkGrok 4Phi-4
LMArena Longer Query14091217
Fiction.LiveBench94.4%—

Writing & Preference Grok 4 leads

Grok 4: 58.5 (#116), Phi-4: 40.5 (#244)

BenchmarkGrok 4Phi-4
LMArena Text14111217
LMArena Creative Writing13971182
Short-Story Creative Writing76.9%62.6%
LMArena Multi-Turn14161206
WildBench79.7%—
LiveBench Language—25.6%

Frequently asked questions

Is Grok 4 better than Phi-4?

Grok 4 is the stronger model overall, scoring 48.1 to 31.2 on the Noometry Index.

Is Grok 4 or Phi-4 better for coding?

Grok 4 scores higher on coding benchmarks: 50.3 versus 34.4 in the Noometry coding category.

How many benchmarks do Grok 4 and Phi-4 share?

25 benchmarks have published results for both models. Grok 4 has 48 scored results on Noometry and Phi-4 has 37.

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