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Anthropic·Claude

Claude Opus 4.6 Thinking

4.6 Thinking

Aliases: claude-opus-4-6-thinking, claude-opus-4-6-high, claude-opus-4-6-thinking-auto-high-effort

Canonical ID
anthropic-claude-opus-4-6-thinking
Independent sources
2
Composite eligibility
Eligible

Public benchmark scores

Source ranks stay intact; incompatible raw scores are not added.

Conversation

StaleHigh confidence
LMArena / Chatbot ArenaText leaderboard · Aug 12, 2026Updated: 8/12/2026
Elo 1505
#2 · 100th percentile
Source leaderboardMethodology

Reasoning

FreshHigh confidence
LiveBenchLiveBench 2026-06-25 · ReasoningUpdated: 6/25/2026
88.7 / 100
#12 · 74th percentile
Source leaderboardMethodology

Why it ranks here

This model has scores from 2 independent sources and is eligible for the ToolCenter composite reference.

Historical movement

Historical snapshots are available on the source score cards.

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