Noometry

Model comparison

Claude Fable 5.1 vs ERNIE 5.1

Claude Fable 5.1 is the stronger model overall, scoring 69.0 to 43.8 on the Noometry Index.

Last verified . 18 shared benchmarks.

Claude Fable 5.1 Anthropic

69.0

Rank #2 Confirmed

ERNIE 5.1 Baidu

43.8

Rank #83 Confirmed

Summary

  • They share 18 benchmarks with published results for both. Claude Fable 5.1 scores higher in 8 categories and ERNIE 5.1 in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Claude Fable 5.1 leads 76.7 to 21.9.
  • The biggest single-benchmark swing is NYT Connections (extended): 90% for Claude Fable 5.1 and 23.4% for ERNIE 5.1.

Side by side

Claude Fable 5.1ERNIE 5.1
ProviderAnthropicBaidu
Noometry Index69.043.8
Released2026-09-01—
WeightsProprietaryProprietary
Context window1M—
Max output128K—
Input $ / M tokens$10—
Output $ / M tokens$50—
Results tracked5219

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Category by category

Coding Claude Fable 5.1 leads

Claude Fable 5.1: 74.7 (#1), ERNIE 5.1: 44.0 (#76)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Coding15281488
FrontierCode50.9%—
CursorBench51.8%—
LMArena WebDev1744—
FrontierSWE56.3%—
SciCode63.1%—
GSO88.2%—
WeirdML92.9%—
MirrorCode73.3%—
ALE-Bench2,143—

Agentic & Tool Use Not comparable

Claude Fable 5.1: 50.7 (#5), ERNIE 5.1: —

BenchmarkClaude Fable 5.1ERNIE 5.1
APEX-Agents68.6%—
Remote Labor Index17.9%—
GDP.pdf29.6%—
LMArena Search—1227
Vending-Bench 25,422—

Reasoning Claude Fable 5.1 leads

Claude Fable 5.1: 76.7 (#7), ERNIE 5.1: 21.9 (#211)

BenchmarkClaude Fable 5.1ERNIE 5.1
NYT Connections (extended)90%23.4%
LMArena Hard Prompts15261481
ARC-AGI-290%—
ARC-AGI-197.5%—
CritPt31.1%—
Chess Puzzles47%—
EBR-Bench57.1%—
Mystery Game Puzzles58%—
DTBench97.6%—
LMCA65.5%—
Epoch Capabilities Index164.7—

Math Claude Fable 5.1 leads

Claude Fable 5.1: 89.6 (#4), ERNIE 5.1: 40.3 (#92)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Math15251481
FrontierMath (Tiers 1-3)90.2%—
FrontierMath Tier 487.8%—
OTIS Mock AIME 2024-2025100%—
ProofBench100%—
FrontierMath Erdős0%—

Knowledge Claude Fable 5.1 leads

Claude Fable 5.1: 69.6 (#6), ERNIE 5.1: 41.9 (#102)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Expert15351492
Humanity's Last Exam46.5%—
SimpleQA Verified70.8%—

Multimodal Not comparable

Claude Fable 5.1: 53.9 (#4), ERNIE 5.1: —

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Vision1318—
Blueprint-Bench 241.9%—
Furniture Assembly70%—
LMArena Document1513—

Multilingual Claude Fable 5.1 leads

Claude Fable 5.1: 59.1 (#3), ERNIE 5.1: 55.5 (#29)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Non-English15071454
LMArena Chinese15861508
LMArena French15251488
LMArena German15001470
LMArena Japanese15431422
LMArena Korean15341427
LMArena Russian15211459
LMArena Spanish15161473

Instruction Following Claude Fable 5.1 leads

Claude Fable 5.1: 79.2 (#6), ERNIE 5.1: 76.7 (#37)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Instruction Following15171460

Long Context Claude Fable 5.1 leads

Claude Fable 5.1: 46.7 (#20), ERNIE 5.1: 44.7 (#59)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Longer Query15221462

Writing & Preference Claude Fable 5.1 leads

Claude Fable 5.1: 79.2 (#2), ERNIE 5.1: 65.1 (#52)

BenchmarkClaude Fable 5.1ERNIE 5.1
LMArena Text15101468
LMArena Creative Writing15071441
LMArena Multi-Turn14921471
EQ-Bench Creative Writing2162—

Frequently asked questions

Is Claude Fable 5.1 better than ERNIE 5.1?

Claude Fable 5.1 is the stronger model overall, scoring 69.0 to 43.8 on the Noometry Index.

Is Claude Fable 5.1 or ERNIE 5.1 better for coding?

Claude Fable 5.1 scores higher on coding benchmarks: 74.7 versus 44.0 in the Noometry coding category.

How many benchmarks do Claude Fable 5.1 and ERNIE 5.1 share?

18 benchmarks have published results for both models. Claude Fable 5.1 has 52 scored results on Noometry and ERNIE 5.1 has 19.

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