Visible tradeoffsThis is a combined signal, so it bundles multiple inputs and should not be treated as one clean test.
source
Artificial Analysis
metric
Index (index)
judge
Combined
direction
higher better
group id
aa_coding_index_current
domain
Coding
What it measures vs what it misses
✓ Measures
Coding benchmark performance aggregated by Artificial Analysis.
✗ Misses
Non-coding chat quality and production latency.
Why this countsIt tells you whether the model can generate, repair, and reason over code under evaluator pressure rather than marketing examples.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 fully capture repo-scale iteration, IDE ergonomics, or long debugging loops.
Leaderboard · this benchmark version
#1 · Claude Opus 5 (Adaptive Reasoning, Max Effort)
AA · Aug 19, 2026
Source label: Claude Opus 5 (Adaptive Reasoning, Max Effort)
Fallback benchmark identity is visible for context but excluded from default ranking.
Identity
benchmark proxy (0.58)
Parsed from Artificial Analysis public leaderboard field `codingIndex`. Backfilled from Claude Haiku 3.5 via approved benchmark identity mapping map-claude-haiku-4-5-to-3-5.