Why this countsIt checks whether long-context claims survive contact with retrieval, memory, or long-document tasks.Same-test ruleThis percentile only compares models inside the exact benchmark/version group shown here. It is not a universal score.What it missesIt does not guarantee good synthesis quality once real documents, tools, and latency constraints are involved.
Fallback benchmark identity is visible for context but excluded from default ranking.
Identity
benchmark proxy (0.58)
Parsed from Artificial Analysis public leaderboard field `lcr`. Backfilled from Claude Opus 4.1 via approved benchmark identity mapping map-claude-opus-4-to-4-1.
76%
#104 · Claude Opus 4.7
AA · Oct 3, 2026
Source label: Claude Opus 4.7 (Non-reasoning, High Effort)