Model comparison

ERNIE 5.1 vs Inkling-Small

Inkling-Small is the stronger model overall, scoring 46.5 to 43.8 on the Noometry Index.

Last verified . 17 shared benchmarks.

ERNIE 5.1 Baidu

43.8

Rank #83 Confirmed

Inkling-Small Thinking Machines Lab

46.5

Rank #63 Confirmed

Summary

  • They share 17 benchmarks with published results for both. ERNIE 5.1 scores higher in 5 categories and Inkling-Small in 3 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Inkling-Small leads 38.6 to 21.9.
  • Inkling-Small has downloadable open weights; the other is API-only.

Side by side

ERNIE 5.1 and Inkling-Small specifications
ERNIE 5.1Inkling-Small
ProviderBaiduThinking Machines Lab
Noometry Index43.846.5
Released—2026-07-15
WeightsProprietaryOpen
Context window—524K
Max output—1.05M
Input $ / M tokens—$0.45
Output $ / M tokens—$1.20
Results tracked1933

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Category by category

Coding Too close to call

ERNIE 5.1: 44.0 (#76), Inkling-Small: 43.6 (#85)

Coding benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Coding14881451
LMArena WebDev—1409
SciCode—48.7%

Agentic & Tool Use Not comparable

ERNIE 5.1: —, Inkling-Small: —

Agentic & Tool Use benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Search1227—

Reasoning Inkling-Small leads

ERNIE 5.1: 21.9 (#211), Inkling-Small: 38.6 (#63)

Reasoning benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Hard Prompts14811423
ARC-AGI-2—40.1%
NYT Connections (extended)23.4%—
ARC-AGI-1—84%
CritPt—8.3%
Chess Puzzles—18%
Mystery Game Puzzles—6%
Epoch Capabilities Index—150.15

Math Inkling-Small leads

ERNIE 5.1: 40.3 (#92), Inkling-Small: 45.1 (#77)

Math benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Math14811459
FrontierMath (Tiers 1-3)—46.3%
FrontierMath Tier 4—17.1%
OTIS Mock AIME 2024-2025—90%
ProofBench—6%

Knowledge Inkling-Small leads

ERNIE 5.1: 41.9 (#102), Inkling-Small: 48.2 (#77)

Knowledge benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Expert14921442
GPQA Diamond—88.5%
SimpleQA Verified—19.1%

Multimodal Not comparable

ERNIE 5.1: —, Inkling-Small: 39.1 (#62)

Multimodal benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Vision—1235

Multilingual ERNIE 5.1 leads

ERNIE 5.1: 55.5 (#29), Inkling-Small: 51.7 (#104)

Multilingual benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Non-English14541402
LMArena Chinese15081465
LMArena French14881436
LMArena German14701405
LMArena Japanese14221405
LMArena Korean14271363
LMArena Russian14591391
LMArena Spanish14731428

Instruction Following ERNIE 5.1 leads

ERNIE 5.1: 76.7 (#37), Inkling-Small: 73.8 (#114)

Instruction Following benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Instruction Following14601399

Long Context ERNIE 5.1 leads

ERNIE 5.1: 44.7 (#59), Inkling-Small: 42.7 (#118)

Long Context benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Longer Query14621401

Writing & Preference ERNIE 5.1 leads

ERNIE 5.1: 65.1 (#52), Inkling-Small: 59.6 (#107)

Writing & Preference benchmarks
BenchmarkERNIE 5.1Inkling-Small
LMArena Text14681414
LMArena Creative Writing14411331
LMArena Multi-Turn14711418
EQ-Bench Creative Writing—1491

Frequently asked questions

Is ERNIE 5.1 better than Inkling-Small?

Inkling-Small is the stronger model overall, scoring 46.5 to 43.8 on the Noometry Index.

Is ERNIE 5.1 or Inkling-Small better for coding?

They score almost the same on coding (44.0 vs 43.6); test both on your own repository before choosing.

How many benchmarks do ERNIE 5.1 and Inkling-Small share?

17 benchmarks have published results for both models. ERNIE 5.1 has 19 scored results on Noometry and Inkling-Small has 33.

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