Noometry

Model comparison

Grok 4.3 vs Grok Build 0.1

Grok 4.3 is the stronger model overall, scoring 43.6 to 35.8 on the Noometry Index.

Last verified . 2 shared benchmarks.

Grok 4.3 xAI

43.6

Rank #80 Confirmed

Grok Build 0.1 xAI

35.8

Rank #214 Reported

Summary

  • They share 2 benchmarks with published results for both. Grok 4.3 scores higher in 2 categories and Grok Build 0.1 in 1 category; 3 gaps are clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Grok 4.3 leads 27.6 to 22.5.
  • Grok Build 0.1 is cheaper at $1 / $2 per million input/output tokens, against $1.25 / $2.50 for Grok 4.3.
  • Grok 4.3 accepts more context: 1M tokens versus 256K.

Side by side

Grok 4.3Grok Build 0.1
ProviderxAIxAI
Noometry Index43.635.8
Released2026-04-172026-04-16
WeightsProprietaryProprietary
Context window1M256K
Max output30K256K
Input $ / M tokens$1.25$1
Output $ / M tokens$2.50$2
Results tracked403

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Category by category

Coding Grok Build 0.1 leads

Grok 4.3: 41.3 (#117), Grok Build 0.1: 42.5 (#90)

BenchmarkGrok 4.3Grok Build 0.1
SciCode47.3%50.2%
LMArena WebDev1357—
WeirdML49.9%—
LMArena Coding1415—
ALE-Bench944.17—

Agentic & Tool Use Grok 4.3 leads

Grok 4.3: 27.6 (#93), Grok Build 0.1: 22.5 (#122)

BenchmarkGrok 4.3Grok Build 0.1
GBAEval—2.4%
GDP.pdf8%—
LMArena Search1165—
Vending-Bench 235.26—

Reasoning Grok 4.3 leads

Grok 4.3: 34.9 (#60), Grok Build 0.1: 31.3 (#73)

BenchmarkGrok 4.3Grok Build 0.1
CritPt8%9.1%
NYT Connections (extended)55.2%—
Chess Puzzles25%—
LMArena Hard Prompts1397—
DTBench90.7%—
LMCA38.3%—
Epoch Capabilities Index149.13—
ForecastBench60.3—

Math Not comparable

Grok 4.3: 45.8 (#60), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
FrontierMath (Tiers 1-3)42.8%—
FrontierMath Tier 414.6%—
OTIS Mock AIME 2024-202593.3%—
ProofBench11%—
LMArena Math1388—

Knowledge Not comparable

Grok 4.3: 52.5 (#57), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
GPQA Diamond88.8%—
SimpleQA Verified33.2%—
LMArena Expert1385—

Multimodal Not comparable

Grok 4.3: 31.6 (#96), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
LMArena Vision1231—
Blueprint-Bench 20%—

Multilingual Not comparable

Grok 4.3: 50.7 (#114), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
LMArena Non-English1385—
LMArena Chinese1423—
LMArena French1412—
LMArena German1395—
LMArena Japanese1379—
LMArena Korean1357—
LMArena Russian1399—
LMArena Spanish1402—

Instruction Following Not comparable

Grok 4.3: 72.3 (#135), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
LMArena Instruction Following1366—

Long Context Not comparable

Grok 4.3: 42.5 (#118), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
LMArena Longer Query1393—

Writing & Preference Not comparable

Grok 4.3: 58.6 (#112), Grok Build 0.1: —

BenchmarkGrok 4.3Grok Build 0.1
LMArena Text1397—
LMArena Creative Writing1380—
EQ-Bench 41075—
LMArena Multi-Turn1406—

Frequently asked questions

Is Grok 4.3 better than Grok Build 0.1?

Grok 4.3 is the stronger model overall, scoring 43.6 to 35.8 on the Noometry Index.

Which is cheaper, Grok 4.3 or Grok Build 0.1?

Grok Build 0.1 is cheaper. It lists at $1 per million input tokens and $2 per million output tokens; Grok 4.3 lists at $1.25 and $2.50.

Is Grok 4.3 or Grok Build 0.1 better for coding?

Grok Build 0.1 scores higher on coding benchmarks: 42.5 versus 41.3 in the Noometry coding category.

Which has the bigger context window?

Grok 4.3 does, with 1M tokens against 256K.

How many benchmarks do Grok 4.3 and Grok Build 0.1 share?

2 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and Grok Build 0.1 has 3.

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