BenchAtlas

Rankings / Anthropic

Claude Opus 4.8

released 2026-05-28

BenchAtlas Index

as of 2026-07-14
80.2
max effort
rank #11
7 families · 4 categories · medium
79.7
max effort
rank #13
7 families · 4 categories · medium
77.1
max effort
rank #23
5 families · 3 categories · medium

Benchmark evidence

76 results
agentic coding
Release 2026-06-25
tasks_counted=3 · livebench_version=2026-06-25
xhigh effort56.1 %independentLiveBench
τ²-Benchmax effort94.4 %independentArtificial Analysis
τ²-Bench
subset=banking
max effort27.6 %independentArtificial Analysis
coding
Release 2026-06-25
tasks_counted=2 · livebench_version=2026-06-25
xhigh effort79.3 %independentLiveBench
SciCodemax effort53.5 %independentArtificial Analysis
data analysis
Release 2026-06-25
tasks_counted=3 · livebench_version=2026-06-25
xhigh effort78.3 %independentLiveBench
external indices
AA Coding Indexmax effort74.3 pointsindependentArtificial Analysis
Intelligence Index v4.1max effort55.7 pointsindependentArtificial Analysis
ECImax effort157.8 pointsindependentEpoch AI Benchmarking Hub
ECIhigh effort157.8 pointsindependentEpoch AI Benchmarking Hub
ECI157.8 pointsindependentEpoch AI Benchmarking Hub
ECImedium effort157.8 pointsindependentEpoch AI Benchmarking Hub
ECIxhigh effort157.8 pointsindependentEpoch AI Benchmarking Hub
ECIno reasoning157.8 pointsindependentEpoch AI Benchmarking Hub
ECIlow effort157.8 pointsindependentEpoch AI Benchmarking Hub
Vals Indexmax effort70.4 pointsindependentVals AI
factuality
SimpleQA Verifiedmax effort39.5 %independentEpoch AI Benchmarking Hub
2026-05-29
human preference
Coding (style control)older version
arena=text · category=coding · style_control=true
1532.6
1524.6–1540.7
communityLMArena Leaderboard Dataset
Chinese (style control)older version
arena=text · category=chinese · style_control=true
1529.0
1511.6–1546.4
communityLMArena Leaderboard Dataset
Industry Software And It Services (style control)older version
arena=text · category=industry_software_and_it_services · style_control=true
1517.9
1510.7–1525.0
communityLMArena Leaderboard Dataset
Expert (style control)older version
arena=text · category=expert · style_control=true
1515.6
1503.7–1527.4
communityLMArena Leaderboard Dataset
Hard Prompts English (style control)older version
arena=text · category=hard_prompts_english · style_control=true
1509.3
1501.7–1516.9
communityLMArena Leaderboard Dataset
Hard Prompts (style control)older version
arena=text · category=hard_prompts · style_control=true
1507.5
1501.2–1513.8
communityLMArena Leaderboard Dataset
French (style control)older version
arena=text · category=french · style_control=true
1503.8
1483.7–1523.8
communityLMArena Leaderboard Dataset
Longer Query (style control)older version
arena=text · category=longer_query · style_control=true
1503.2
1496.0–1510.5
communityLMArena Leaderboard Dataset
Multi Turn (style control)older version
arena=text · category=multi_turn · style_control=true
1500.0
1490.7–1509.3
communityLMArena Leaderboard Dataset
Industry Life And Physical And Social Science (style control)older version
arena=text · category=industry_life_and_physical_and_social_science · style_control=true
1499.2
1489.7–1508.7
communityLMArena Leaderboard Dataset
Industry Medicine And Healthcare (style control)older version
arena=text · category=industry_medicine_and_healthcare · style_control=true
1498.8
1485.0–1512.6
communityLMArena Leaderboard Dataset
Industry Legal And Government (style control)older version
arena=text · category=industry_legal_and_government · style_control=true
1497.5
1484.3–1510.8
communityLMArena Leaderboard Dataset
Industry Business And Management And Financial Operations (style control)older version
arena=text · category=industry_business_and_management_and_financial_operations · style_control=true
1493.0
1484.2–1501.9
communityLMArena Leaderboard Dataset
Russian (style control)older version
arena=text · category=russian · style_control=true
1486.6
1474.8–1498.5
communityLMArena Leaderboard Dataset
Exclude Ties (style control)older version
arena=text · category=exclude_ties · style_control=true
1486.0
1479.0–1493.0
communityLMArena Leaderboard Dataset
Industry Mathematical (style control)older version
arena=text · category=industry_mathematical · style_control=true
1485.8
1469.3–1502.3
communityLMArena Leaderboard Dataset
Polish (style control)older version
arena=text · category=polish · style_control=true
1485.4
1460.2–1510.7
communityLMArena Leaderboard Dataset
English (style control)older version
arena=text · category=english · style_control=true
1482.7
1476.1–1489.4
communityLMArena Leaderboard Dataset
Instruction Following (style control)older version
arena=text · category=instruction_following · style_control=true
1478.9
1471.4–1486.4
communityLMArena Leaderboard Dataset
Math (style control)older version
arena=text · category=math · style_control=true
1477.9
1461.7–1494.1
communityLMArena Leaderboard Dataset
Overall (style control)
arena=text · category=overall · style_control=true
1475.5
1470.2–1480.8
communityLMArena Leaderboard Dataset
Industry Writing And Literature And Language (style control)older version
arena=text · category=industry_writing_and_literature_and_language · style_control=true
1468.8
1460.6–1477.1
communityLMArena Leaderboard Dataset
Non English (style control)older version
arena=text · category=non_english · style_control=true
1465.5
1458.8–1472.1
communityLMArena Leaderboard Dataset
Spanish (style control)older version
arena=text · category=spanish · style_control=true
1461.1
1440.0–1482.2
communityLMArena Leaderboard Dataset
Creative Writing (style control)older version
arena=text · category=creative_writing · style_control=true
1461.1
1451.5–1470.6
communityLMArena Leaderboard Dataset
Industry Entertainment And Sports And Media (style control)older version
arena=text · category=industry_entertainment_and_sports_and_media · style_control=true
1454.8
1446.1–1463.4
communityLMArena Leaderboard Dataset
knowledge science
GPQA Diamond
implementation=vals-ai
max effort92.4 %independentVals AI
GPQA Diamond
implementation=artificial-analysis
max effort92.0 %independentArtificial Analysis
GPQA Diamondmax effort91.0 %independentEpoch AI Benchmarking Hub
2026-06-07
Humanity's Last Exam
implementation=artificial-analysis
max effort45.7 %independentArtificial Analysis
MMLU-Pro
implementation=vals-ai
max effort89.6 %independentVals AI
language
Release 2026-06-25
tasks_counted=3 · livebench_version=2026-06-25
xhigh effort81.4 %independentLiveBench
long context instruction
AA-LCRmax effort67.7 %independentArtificial Analysis
IFBenchmax effort62.2 %independentArtificial Analysis
Release 2026-06-25
tasks_counted=4 · livebench_version=2026-06-25
xhigh effort72.4 %independentLiveBench
multimodal
MMMU
implementation=vals-ai
max effort86.6 %independentVals AI
professional
CorpFinmax effort66.7 %independentVals AI
LegalBenchmax effort83.6 %independentVals AI
TaxEvalmax effort75.6 %independentVals AI
reasoning math
ARC-AGI-1older version
split=semi_private · model_type=CoT
max effort92.5 %independentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
high effort92.0 %independentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
medium effort91.5 %independentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
low effort88.0 %independentARC Prize Leaderboard
ARC-AGI-2
split=semi_private · model_type=CoT
high effort72.1 %independentARC Prize Leaderboard
ARC-AGI-2
split=semi_private · model_type=CoT
medium effort71.7 %independentARC Prize Leaderboard
ARC-AGI-2
split=semi_private · model_type=CoT
low effort62.2 %independentARC Prize Leaderboard
ARC-AGI-2
split=semi_private · model_type=CoT
high effort2.7 usd_per_taskindependentARC Prize Leaderboard
ARC-AGI-2
split=semi_private · model_type=CoT
medium effort2.4 usd_per_taskindependentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
max effort2.3 usd_per_taskindependentARC Prize Leaderboard
ARC-AGI-2
split=semi_private · model_type=CoT
low effort1.7 usd_per_taskindependentARC Prize Leaderboard
ARC-AGI-3older version
split=semi_private · model_type=CoT
high effort1.5 %independentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
high effort1.0 usd_per_taskindependentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
medium effort0.9 usd_per_taskindependentARC Prize Leaderboard
ARC-AGI-1older version
split=semi_private · model_type=CoT
low effort0.7 usd_per_taskindependentARC Prize Leaderboard
FrontierMathmax effort47.2 %independentEpoch AI Benchmarking Hub
2026-06-08
FrontierMath Tier 4older versionmax effort31.3 %independentEpoch AI Benchmarking Hub
2026-06-08
Release 2026-06-25
tasks_counted=4 · livebench_version=2026-06-25
xhigh effort95.3 %independentLiveBench
Release 2026-06-25
tasks_counted=4 · livebench_version=2026-06-25
xhigh effort89.7 %independentLiveBench
OTIS Mock AIME 2024–2025max effort98.3 %independentEpoch AI Benchmarking Hub
2026-06-07

Agent + model results

systems, not bare-model scores
agent + model Artificial Analysis harness + Claude Opus 4.8Terminal-Bench 2.184.6 %independentArtificial Analysis
agent + model Claude Code + Claude Opus 4.8Terminal-Bench 2.178.9 %communityTerminal-Bench Leaderboard
agent + model terminus-2 + Claude Opus 4.8Terminal-Bench 2.174.6 %communityTerminal-Bench Leaderboard
agent + model Artificial Analysis harness + Claude Opus 4.8Terminal-Bench Hard58.3 %independentArtificial Analysis

These scores measure the whole agent system (scaffold, tools, budgets) — they are never merged into the bare model’s numbers.

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