Noometry

Model comparison

Grok 4.7 vs Nemotron 3.5 Lightning

Grok 4.7 is the stronger model overall, scoring 46.6 to 39.3 on the Noometry Index. Nemotron 3.5 Lightning costs 35× less per token, which makes it the better buy when Grok 4.7's lead doesn't matter for your workload.

Last verified . 13 shared benchmarks.

Grok 4.7 xAI

46.6

Rank #56 Confirmed

Nemotron 3.5 Lightning NVIDIA

39.3

Rank #156 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Grok 4.7 scores higher in 8 categories and Nemotron 3.5 Lightning in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where Grok 4.7 leads 70.1 to 48.5.
  • Nemotron 3.5 Lightning is cheaper at $0.06 / $0.16 per million input/output tokens, against $2 / $6 for Grok 4.7.
  • Grok 4.7 accepts more context: 500K tokens versus 262K.
  • Nemotron 3.5 Lightning has downloadable open weights; the other is API-only.

Side by side

Grok 4.7Nemotron 3.5 Lightning
ProviderxAINVIDIA
Noometry Index46.639.3
Released2026-09-212026-08-11
WeightsProprietaryOpen
Context window500K262K
Max output500K262K
Input $ / M tokens$2$0.06
Output $ / M tokens$6$0.16
Results tracked2118

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Category by category

Coding Grok 4.7 leads

Grok 4.7: 55.0 (#23), Nemotron 3.5 Lightning: 39.6 (#143)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Coding14231370
CursorBench46.3%—
LMArena WebDev1636—
FrontierSWE29.5%—
SciCode57.4%—

Reasoning Grok 4.7 leads

Grok 4.7: 40.1 (#49), Nemotron 3.5 Lightning: 25.7 (#128)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Hard Prompts14091335
NYT Connections (extended)76.8%—
CritPt17.7%—

Math Grok 4.7 leads

Grok 4.7: 41.1 (#73), Nemotron 3.5 Lightning: 34.7 (#156)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Math13931355
ProofBench34%—

Knowledge Grok 4.7 leads

Grok 4.7: 38.7 (#130), Nemotron 3.5 Lightning: 36.9 (#154)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Expert14131354

Multimodal Not comparable

Grok 4.7: 28.8 (#107), Nemotron 3.5 Lightning: —

BenchmarkGrok 4.7Nemotron 3.5 Lightning
Furniture Assembly20.8%—

Multilingual Grok 4.7 leads

Grok 4.7: 51.2 (#108), Nemotron 3.5 Lightning: 44.0 (#175)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Non-English13921292
LMArena Chinese14761356
LMArena Russian13961257
LMArena French—1369
LMArena German—1280
LMArena Japanese—1213
LMArena Korean—1233
LMArena Spanish—1321

Instruction Following Grok 4.7 leads

Grok 4.7: 74.3 (#98), Nemotron 3.5 Lightning: 69.8 (#166)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Instruction Following14061317

Long Context Grok 4.7 leads

Grok 4.7: 43.2 (#97), Nemotron 3.5 Lightning: 39.9 (#160)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Longer Query14161312

Writing & Preference Grok 4.7 leads

Grok 4.7: 70.1 (#23), Nemotron 3.5 Lightning: 48.5 (#198)

BenchmarkGrok 4.7Nemotron 3.5 Lightning
LMArena Text13971324
LMArena Creative Writing13911254
EQ-Bench Creative Writing20071280
LMArena Multi-Turn13891327

Frequently asked questions

Is Grok 4.7 better than Nemotron 3.5 Lightning?

Grok 4.7 is the stronger model overall, scoring 46.6 to 39.3 on the Noometry Index. Nemotron 3.5 Lightning costs 35× less per token, which makes it the better buy when Grok 4.7's lead doesn't matter for your workload.

Which is cheaper, Grok 4.7 or Nemotron 3.5 Lightning?

Nemotron 3.5 Lightning is cheaper. It lists at $0.06 per million input tokens and $0.16 per million output tokens; Grok 4.7 lists at $2 and $6.

Is Grok 4.7 or Nemotron 3.5 Lightning better for coding?

Grok 4.7 scores higher on coding benchmarks: 55.0 versus 39.6 in the Noometry coding category.

Which has the bigger context window?

Grok 4.7 does, with 500K tokens against 262K.

How many benchmarks do Grok 4.7 and Nemotron 3.5 Lightning share?

13 benchmarks have published results for both models. Grok 4.7 has 21 scored results on Noometry and Nemotron 3.5 Lightning has 18.

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