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Anthropic · Active

Claude Opus 4.8

claude-opus family · launched 2026-05-28

MultimodalReasoningTools
AITopic score62.3#52 overall

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

Evidence coverage100%9 evaluations · 3 institutions
Context / maximum output1M / 128ktokens
Cache / input / output$0.5 · $5 · $25USD per million tokens
Value / freshness40.2 / 68relative value · release freshness
Product profile

What this model supports

Inputtext, image, pdf
Outputtext
Knowledge cutoff2026-01
WeightsProprietary / hosted
Capability profile

Strengths by domain

Coding61.12 public results
Research & reasoning63.52 public results
Professional work—2 public results
Knowledge & instruction64.42 public results
Behind the score

Every result has a source

Raw results and standardized readings are shown together. Missing tests add neither points nor penalties.

Coding2 results

LiveBench 2.0 · CodingLiveBench77.30 scoreReading 77.3

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · CodingAIHOT61.10 scoreReading 61.1

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Research & reasoning2 results

LiveBench 2.0 · ResearchLiveBench89.20 scoreReading 89.2

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · ResearchAIHOT63.50 scoreReading 63.5

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Professional work2 results

LiveBench 2.0 · ProfessionalLiveBench72.28 scoreReading 72.3

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized. Professional = long-agentic, browser, data-analysis and design average.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · ProfessionalAIHOT62.10 scoreReading 62.1

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Knowledge & instruction2 results

LiveBench 2.0 · KnowledgeLiveBench81.80 scoreReading 81.8

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized. Knowledge uses the published LiveBench research suite.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT · KnowledgeAIHOT64.40 scoreReading 64.4

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence

Human preference & indices4 results

LiveBenchLiveBench76.77 scoreReading 76.8

Imported from LiveBench 2.0. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: LiveBench 2.0, AIHOT aggregateOpen evidence
AIHOT aggregate leaderboardAIHOT62.30 scoreReading 62.3

Imported from AIHOT aggregate leaderboard. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
Arena TextLMArena1,454.0 EloReading 62.3

Direct LMArena text leaderboard result.

Open evidence
AA IndexArtificial Analysis65.12 indexReading 58.7

Imported from Artificial Analysis. The published 0–100 score is used directly; it is not z-score normalized.

Configuration: AIHOT aggregateOpen evidence
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