Noometry

Model comparison

GPT-4.1 nano vs Inkling-Small

Inkling-Small is the stronger model overall, scoring 46.5 to 27.7 on the Noometry Index. GPT-4.1 nano costs 3.6× less per token, which makes it the better buy when Inkling-Small's lead doesn't matter for your workload.

Last verified . 24 shared benchmarks.

GPT-4.1 nano OpenAI

27.7

Rank #322 Confirmed

Inkling-Small Thinking Machines Lab

46.5

Rank #57 Confirmed

Summary

  • They share 24 benchmarks with published results for both. GPT-4.1 nano scores higher in 0 categories and Inkling-Small in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Inkling-Small leads 39.0 to 8.6.
  • The biggest single-benchmark swing is ARC-AGI-1: 0% for GPT-4.1 nano and 84% for Inkling-Small.
  • GPT-4.1 nano is cheaper at $0.10 / $0.40 per million input/output tokens, against $0.45 / $1.20 for Inkling-Small.
  • GPT-4.1 nano accepts more context: 1.05M tokens versus 524K.
  • Inkling-Small has downloadable open weights; the other is API-only.

Side by side

GPT-4.1 nanoInkling-Small
ProviderOpenAIThinking Machines Lab
Noometry Index27.746.5
Released2025-04-142026-07-15
WeightsProprietaryOpen
Context window1.05M524K
Max output33K1.05M
Input $ / M tokens$0.10$0.45
Output $ / M tokens$0.40$1.20
Results tracked3833

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Category by category

Coding Inkling-Small leads

GPT-4.1 nano: 23.8 (#325), Inkling-Small: 43.3 (#80)

BenchmarkGPT-4.1 nanoInkling-Small
SciCode25.9%48.7%
LMArena Coding13061451
Aider Polyglot8.9%—
LMArena WebDev—1408
WeirdML19%—

Agentic & Tool Use Not comparable

GPT-4.1 nano: 26.3 (#98), Inkling-Small: —

BenchmarkGPT-4.1 nanoInkling-Small
Berkeley Function Calling Leaderboard33%—

Reasoning Inkling-Small leads

GPT-4.1 nano: 8.6 (#344), Inkling-Small: 39.0 (#53)

BenchmarkGPT-4.1 nanoInkling-Small
ARC-AGI-20%40.1%
ARC-AGI-10%84%
CritPt0%8.3%
LMArena Hard Prompts12861424
Epoch Capabilities Index129.62150.13
Kagi LLM Benchmark33.3%—
Chess Puzzles—18%
Mystery Game Puzzles—6%
DTBench52.5%—
LMCA5.5%—

Math Inkling-Small leads

GPT-4.1 nano: 25.5 (#246), Inkling-Small: 44.9 (#65)

BenchmarkGPT-4.1 nanoInkling-Small
OTIS Mock AIME 2024-202528.9%90%
LMArena Math12741453
FrontierMath (Tiers 1-3)—46.3%
FrontierMath Tier 4—17.1%
ProofBench—6%
Omni-MATH36.7%—
MATH Level 570%—
FrontierMath (Feb 2025 set)1%—

Knowledge Inkling-Small leads

GPT-4.1 nano: 21.8 (#268), Inkling-Small: 48.3 (#71)

BenchmarkGPT-4.1 nanoInkling-Small
GPQA Diamond48.9%88.5%
SimpleQA Verified6%19.1%
LMArena Expert12721442
MMLU-Pro55%—
GPQA (HELM)50.7%—

Multimodal Inkling-Small leads

GPT-4.1 nano: 28.6 (#108), Inkling-Small: 38.4 (#59)

BenchmarkGPT-4.1 nanoInkling-Small
LMArena Vision10631235

Multilingual Inkling-Small leads

GPT-4.1 nano: 41.8 (#200), Inkling-Small: 51.7 (#102)

BenchmarkGPT-4.1 nanoInkling-Small
LMArena Non-English12601400
LMArena Chinese12701458
LMArena German12881412
LMArena Japanese11991399
LMArena Russian12611392
LMArena French—1438
LMArena Korean—1355
LMArena Spanish—1426

Instruction Following Inkling-Small leads

GPT-4.1 nano: 68.0 (#188), Inkling-Small: 73.9 (#112)

BenchmarkGPT-4.1 nanoInkling-Small
LMArena Instruction Following12671397
IFEval84.3%—

Long Context Inkling-Small leads

GPT-4.1 nano: 23.7 (#291), Inkling-Small: 42.7 (#113)

BenchmarkGPT-4.1 nanoInkling-Small
LMArena Longer Query12831401
Fiction.LiveBench25%—

Writing & Preference Inkling-Small leads

GPT-4.1 nano: 40.7 (#238), Inkling-Small: 59.8 (#102)

BenchmarkGPT-4.1 nanoInkling-Small
LMArena Text12851413
LMArena Creative Writing12601330
EQ-Bench Creative Writing9461491
LMArena Multi-Turn12771420
WildBench81.2%—

Frequently asked questions

Is GPT-4.1 nano better than Inkling-Small?

Inkling-Small is the stronger model overall, scoring 46.5 to 27.7 on the Noometry Index. GPT-4.1 nano costs 3.6× less per token, which makes it the better buy when Inkling-Small's lead doesn't matter for your workload.

Which is cheaper, GPT-4.1 nano or Inkling-Small?

GPT-4.1 nano is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Inkling-Small lists at $0.45 and $1.20.

Is GPT-4.1 nano or Inkling-Small better for coding?

Inkling-Small scores higher on coding benchmarks: 43.3 versus 23.8 in the Noometry coding category.

Which has the bigger context window?

GPT-4.1 nano does, with 1.05M tokens against 524K.

How many benchmarks do GPT-4.1 nano and Inkling-Small share?

24 benchmarks have published results for both models. GPT-4.1 nano has 38 scored results on Noometry and Inkling-Small has 33.

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