Fable-5 vs Claude Opus 5

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Winner

Claude Opus 5

Claude Opus 5 wins this comparison with an overall score of 84 vs 62 for Fable-5, leading 12 of 17 shared benchmarks.

Claude Opus 5 84.3 Fable-5 62

Based on 17 of 76 benchmarks scored by all 2 selected models.

Benchmark Scores Comparison

Fable-5 Claude Opus 5

Fable-5

Score: 15.0

Claude Opus 5

Score: 40.0

Coverage matrix

2 models × 76 benchmarks — hover a benchmark name for its category

Full Coverage Matrix
Hides benchmarks where all selected models score identically.
Shading = score relative to the best score among the selected models: Low Mid High Missing (—) The totals row shows how many of the 76 benchmarks each model has scores for.
Benchmark Fable-5 Anthropic Claude Opus 5 Anthropic
GPQA Diamond 92.6 93.7
ArXivMath — 71.5
Hy-LifeSearch (Internal) — 56.1
Automation-Bench 29.1 48.7
SWE-bench Pro 80 79.2
BioMysteryBench — 72.1
PRBench-Finance 55.8 —
Agents' Last Exam 23.8 25.1
Toolathlon Verified 77.9 76.5
Hy-Backend 2.0 (Internal) — 40.3
PLawBench 70.2 —
Hy-SWE Max Verified (Internal) — 70.1
Hy-BrowseComp-Pro2 (Internal) — 61.3
QwenReactBench 1770 —
OfficeQA Pro — 66.9
QwenSVGBench 1690 —
SWE Atlas - TW — 68.7
LOCA-Bench (256k) — 53.7
SWE Atlas - QnA — 57.5
NL2Repo — 75.3
PRBench-Legal 57.6 —
PostTrainBench 41.8 35
DSBench-FullStack 77.2 —
Terminal-Bench 3.0 33.7 —
BabyVision — 94.1
Apex-Agents — 41.8
WorkSpaceBench 68.7 75
BankerToolBench — 81.9
E-Bench-Code (Internal) — 82.7
ExploitGym (6h) 247 —
HLE (with tools) 64.5 60.9
CharXiv (RQ) — 83.7
FrontierSWE 88.2 —
GDP.pdf — 21.6
CritPt (no tools) — 29.1
NL2Repo-Bench — 75.3
DRACO — 88.6
SkillsBench 70.9 —
CoWorkBench 75.9 —
SWE-bench Multilingual — 89.5
PaperBench 88.8 —
Hy-FinAgentBench (Internal) — 82
IFBench 63.5 —
Humanity's Last Exam 53.3 54.9
DSBench-Hard 68.3 —
QwenSWEBench 86.3 —
ExploitGym (2h) 181 —
SUPERChem — 76.7
HorizonMath (pass@4) — 5.3
Terminal-Bench 2.1 (Terminus-2) — 86.7
DeepSWE 70 68.8
ExploitBench 78 —
BrokenArXiv — 77.7
Hy-FinmodelBench v2 (Internal) — 66
MathArena Apex 2025 — 91.4
Terminal Bench 2.1 84.6 —
JobBench 57.4 68
$OneMillion-Bench 55.9 68.1
QwenQoderBench 63.1 —
OSWorld 2.0 (Binary) — 70.6
WideSearch 81.2 84
SkillsBench Avg5 — 63.7
E-Bench (Internal) — 77.8
ProgramBench 33 39.5
MCP-Atlas — 85.7
AndroidBench 84.5 —
SWE-Marathon 33.1 50
Cybergym 83.1 —
Terminal-Bench 4.0 — 51.8
SWE Atlas - RF — 60
DeepSWE 1.1 70 74
Hy-CompanyBench V2 (Internal) — 72.7
Harbor-Index — 56.9
SWE Refactor Bench — 31
MLS-Bench-Lite 49.9 —
GDPVal-AA v2 1743 1831
Covered 39/76 54/76

Scorecard

Overall 0–100 score — category strengths (50%), shared-benchmark wins (30%), coverage (20%)

Model Overall score Shared benchmark wins Coverage Strongest at Weakest at
Claude Opus 5 Winner 84.3 12 of 17 54 of 76 (71.0%) General Capabilities Agentic Coding
Fable-5 62 5 of 17 39 of 76 (51.0%) STEM & Reasoning General Capabilities

Category strengths

Where each model stands, per benchmark category — score relative to the best model, adjusted for benchmark coverage. This also ranks models when they share few benchmarks.

Category Claude Opus 5 Fable-5
Agentic Coding 32 benchmarks 95.6 90.4
General Agents 20 benchmarks 99.6 81.2
STEM & Reasoning 10 benchmarks 97.6 98.3
General Capabilities 4 benchmarks 100 53.6

Fully comparable benchmarks

Scored by all 2 selected models (17)

Benchmark Category Fable-5 Claude Opus 5
GPQA Diamond stem_reasoning 92.6 93.7
Automation-Bench general_agent 29.1 48.7
SWE-bench Pro coding_agent 80 79.2
Agents' Last Exam general_agent 23.8 25.1
Toolathlon Verified general_agent 77.9 76.5
PostTrainBench coding_agent 41.8 35
WorkSpaceBench general_agent 68.7 75
HLE (with tools) stem_reasoning 64.5 60.9
Humanity's Last Exam stem_reasoning 53.3 54.9
DeepSWE coding_agent 70 68.8
JobBench general_agent 57.4 68
$OneMillion-Bench general_capabilities 55.9 68.1
WideSearch general_agent 81.2 84
ProgramBench coding_agent 33 39.5
SWE-Marathon coding_agent 33.1 50
DeepSWE 1.1 coding_agent 70 74
GDPVal-AA v2 general_agent 1743 1831

Partial coverage benchmarks

Scored by at least one but not all selected models (59) — missing scores show as —

Benchmark Category Fable-5 Claude Opus 5
ArXivMath 1/2 models stem_reasoning — 71.5
Hy-LifeSearch (Internal) 1/2 models general_agent — 56.1
BioMysteryBench 1/2 models stem_reasoning — 72.1
PRBench-Finance 1/2 models general_capabilities 55.8 —
Hy-Backend 2.0 (Internal) 1/2 models coding_agent — 40.3
PLawBench 1/2 models general_capabilities 70.2 —
Hy-SWE Max Verified (Internal) 1/2 models coding_agent — 70.1
Hy-BrowseComp-Pro2 (Internal) 1/2 models general_agent — 61.3
QwenReactBench 1/2 models coding_agent 1770 —
OfficeQA Pro 1/2 models general_agent — 66.9
QwenSVGBench 1/2 models coding_agent 1690 —
SWE Atlas - TW 1/2 models coding_agent — 68.7
LOCA-Bench (256k) 1/2 models long_context — 53.7
SWE Atlas - QnA 1/2 models coding_agent — 57.5
NL2Repo 1/2 models coding_agent — 75.3
PRBench-Legal 1/2 models general_capabilities 57.6 —
DSBench-FullStack 1/2 models coding_agent 77.2 —
Terminal-Bench 3.0 1/2 models coding_agent 33.7 —
BabyVision 1/2 models vision_language — 94.1
Apex-Agents 1/2 models general_agent — 41.8
BankerToolBench 1/2 models general_agent — 81.9
E-Bench-Code (Internal) 1/2 models coding_agent — 82.7
ExploitGym (6h) 1/2 models cybersecurity 247 —
CharXiv (RQ) 1/2 models document_understanding — 83.7
FrontierSWE 1/2 models coding_agent 88.2 —
GDP.pdf 1/2 models long_context — 21.6
CritPt (no tools) 1/2 models stem_reasoning — 29.1
NL2Repo-Bench 1/2 models coding_agent — 75.3
DRACO 1/2 models general_agent — 88.6
SkillsBench 1/2 models general_agent 70.9 —
CoWorkBench 1/2 models general_agent 75.9 —
SWE-bench Multilingual 1/2 models coding_agent — 89.5
PaperBench 1/2 models coding_agent 88.8 —
Hy-FinAgentBench (Internal) 1/2 models domain_finance — 82
IFBench 1/2 models instruction_following 63.5 —
DSBench-Hard 1/2 models coding_agent 68.3 —
QwenSWEBench 1/2 models coding_agent 86.3 —
ExploitGym (2h) 1/2 models cybersecurity 181 —
SUPERChem 1/2 models stem_reasoning — 76.7
HorizonMath (pass@4) 1/2 models stem_reasoning — 5.3
Terminal-Bench 2.1 (Terminus-2) 1/2 models coding_agent — 86.7
ExploitBench 1/2 models cybersecurity 78 —
BrokenArXiv 1/2 models stem_reasoning — 77.7
Hy-FinmodelBench v2 (Internal) 1/2 models domain_finance — 66
MathArena Apex 2025 1/2 models stem_reasoning — 91.4
Terminal Bench 2.1 1/2 models coding_agent 84.6 —
QwenQoderBench 1/2 models coding_agent 63.1 —
OSWorld 2.0 (Binary) 1/2 models general_agent — 70.6
SkillsBench Avg5 1/2 models coding_agent — 63.7
E-Bench (Internal) 1/2 models general_agent — 77.8
MCP-Atlas 1/2 models general_agent — 85.7
AndroidBench 1/2 models coding_agent 84.5 —
Cybergym 1/2 models general_agent 83.1 —
Terminal-Bench 4.0 1/2 models coding_agent — 51.8
SWE Atlas - RF 1/2 models coding_agent — 60
Hy-CompanyBench V2 (Internal) 1/2 models general_agent — 72.7
Harbor-Index 1/2 models coding_agent — 56.9
SWE Refactor Bench 1/2 models coding_agent — 31
MLS-Bench-Lite 1/2 models coding_agent 49.9 —

Comparison FAQ

Which model is better, Claude Opus 5 or Fable-5?

Claude Opus 5 wins this comparison with an overall score of 84 vs 62 for Fable-5, leading 12 of 17 shared benchmarks.

Which model is better at General Agents, Claude Opus 5 or Fable-5?

Claude Opus 5 leads the General Agents category (strength score 99.6/100 across 7 comparable benchmarks).

Where does Fable-5 outperform Claude Opus 5?

Fable-5 leads the STEM & Reasoning category (strength score 98.3/100 across 3 comparable benchmarks).

How reliable is this comparison verdict?

Based on 17 of 76 benchmarks scored by all 2 selected models.

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