Model comparison

Grok 4.3 vs Tulu 3 (Tülu 3) 70B

Grok 4.3 is the stronger model overall, scoring 43.6 to 32.6 on the Noometry Index.

Last verified . 13 shared benchmarks.

Grok 4.3 xAI

43.6

Rank #80 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Grok 4.3 scores higher in 8 categories and Tulu 3 (Tülu 3) 70B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok 4.3 leads 45.8 to 13.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 93.3% for Grok 4.3 and 4.4% for Tulu 3 (Tülu 3) 70B.
  • Tulu 3 (Tülu 3) 70B has downloadable open weights; the other is API-only.

Side by side

Grok 4.3 and Tulu 3 (Tülu 3) 70B specifications
Grok 4.3Tulu 3 (Tülu 3) 70B
ProviderxAIAllen Institute for AI (Ai2)
Noometry Index43.632.6
Released2026-04-172024-11-21
WeightsProprietaryOpen
Context window1M—
Max output30K—
Input $ / M tokens$1.25—
Output $ / M tokens$2.50—
Results tracked4014

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Category by category

Coding Grok 4.3 leads

Grok 4.3: 41.3 (#117), Tulu 3 (Tülu 3) 70B: 35.4 (#211)

Coding benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Coding14151236
LMArena WebDev1357—
SciCode47.3%—
WeirdML49.9%—
ALE-Bench944.17—

Agentic & Tool Use Not comparable

Grok 4.3: 27.6 (#93), Tulu 3 (Tülu 3) 70B: —

Agentic & Tool Use benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
GDP.pdf8%—
LMArena Search1165—
Vending-Bench 235.26—

Reasoning Grok 4.3 leads

Grok 4.3: 34.9 (#60), Tulu 3 (Tülu 3) 70B: 22.9 (#172)

Reasoning benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Hard Prompts13971220
NYT Connections (extended)55.2%—
CritPt8%—
Chess Puzzles25%—
DTBench90.7%—
LMCA38.3%—
Epoch Capabilities Index149.13—
ForecastBench60.3—

Math Grok 4.3 leads

Grok 4.3: 45.8 (#60), Tulu 3 (Tülu 3) 70B: 13.3 (#297)

Math benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
OTIS Mock AIME 2024-202593.3%4.4%
LMArena Math13881242
FrontierMath (Tiers 1-3)42.8%—
FrontierMath Tier 414.6%—
ProofBench11%—
MATH Level 5—42.7%

Knowledge Grok 4.3 leads

Grok 4.3: 52.5 (#57), Tulu 3 (Tülu 3) 70B: 25.1 (#257)

Knowledge benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
GPQA Diamond88.8%46.3%
SimpleQA Verified33.2%—
LMArena Expert1385—

Multimodal Not comparable

Grok 4.3: 31.6 (#96), Tulu 3 (Tülu 3) 70B: —

Multimodal benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Vision1231—
Blueprint-Bench 20%—

Multilingual Grok 4.3 leads

Grok 4.3: 50.7 (#114), Tulu 3 (Tülu 3) 70B: 40.1 (#217)

Multilingual benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Non-English13851236
LMArena Chinese14231249
LMArena Russian13991246
LMArena French1412—
LMArena German1395—
LMArena Japanese1379—
LMArena Korean1357—
LMArena Spanish1402—

Instruction Following Grok 4.3 leads

Grok 4.3: 72.3 (#135), Tulu 3 (Tülu 3) 70B: 65.0 (#222)

Instruction Following benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Instruction Following13661233

Long Context Grok 4.3 leads

Grok 4.3: 42.5 (#118), Tulu 3 (Tülu 3) 70B: 37.1 (#217)

Long Context benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Longer Query13931224

Writing & Preference Grok 4.3 leads

Grok 4.3: 58.6 (#112), Tulu 3 (Tülu 3) 70B: 45.8 (#218)

Writing & Preference benchmarks
BenchmarkGrok 4.3Tulu 3 (Tülu 3) 70B
LMArena Text13971256
LMArena Creative Writing13801231
LMArena Multi-Turn14061252
EQ-Bench 41075—

Frequently asked questions

Is Grok 4.3 better than Tulu 3 (Tülu 3) 70B?

Grok 4.3 is the stronger model overall, scoring 43.6 to 32.6 on the Noometry Index.

Is Grok 4.3 or Tulu 3 (Tülu 3) 70B better for coding?

Grok 4.3 scores higher on coding benchmarks: 41.3 versus 35.4 in the Noometry coding category.

How many benchmarks do Grok 4.3 and Tulu 3 (Tülu 3) 70B share?

13 benchmarks have published results for both models. Grok 4.3 has 40 scored results on Noometry and Tulu 3 (Tülu 3) 70B has 14.

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