Anthropic / arena-v1

Claude Opus 4.7 benchmark.

Blind preference, cited external scores, and evaluation economics. Every result keeps its sample count and source date attached.

Evidence levelCited snapshot

Last update2026-08-07

Categories5

Combined quality

98.7

Arena score

Pending

Median latency

Pending

Valid votes

0

Task analysis

Performance by task.

Category	Quality	Arena	External	Evidence
coding	98.9	Pending	98.9	Cited snapshot
general	98.4	Pending	98.4	Cited snapshot
overall	98.7	Pending	98.7	Cited snapshot
reasoning	96.7	Pending	96.7	Cited snapshot
writing	98.7	Pending	98.7	Cited snapshot

Provenance

External evidence.

LMArena Text Leaderboard

2026-08-03 text_style_control 0fdff69b4fd7

overallRank #61492.4 raw98.7 percentile

Bradley-Terry ratings from LMArena's style-controlled text leaderboard. RouterPlex preserves the raw rating, source rank, confidence interval, vote count, and publish date. The displayed external score is the source-rank percentile within each source category.

Published 2026-08-03 / 55,992 source votes / retrieved 2026-08-07 / LMArena leaderboard dataset, licensed CC BY 4.0. RouterPlex includes only exact case-insensitive model-ID matches. Official leaderboard: https://arena.ai/leaderboard. Dataset: https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset. Dataset commit: 4e52c8e709c90a4cad8498d9db5aad11709b04e0. LMArena is not affiliated with RouterPlex.

LMArena Text Leaderboard

2026-08-03 text_style_control 0fdff69b4fd7

codingRank #51547.0 raw98.9 percentile

Bradley-Terry ratings from LMArena's style-controlled text leaderboard. RouterPlex preserves the raw rating, source rank, confidence interval, vote count, and publish date. The displayed external score is the source-rank percentile within each source category.

Published 2026-08-03 / 15,915 source votes / retrieved 2026-08-07 / LMArena leaderboard dataset, licensed CC BY 4.0. RouterPlex includes only exact case-insensitive model-ID matches. Official leaderboard: https://arena.ai/leaderboard. Dataset: https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset. Dataset commit: 4e52c8e709c90a4cad8498d9db5aad11709b04e0. LMArena is not affiliated with RouterPlex.

LMArena Text Leaderboard

2026-08-03 text_style_control 0fdff69b4fd7

reasoningRank #131491.4 raw96.7 percentile

Bradley-Terry ratings from LMArena's style-controlled text leaderboard. RouterPlex preserves the raw rating, source rank, confidence interval, vote count, and publish date. The displayed external score is the source-rank percentile within each source category.

Published 2026-08-03 / 2,883 source votes / retrieved 2026-08-07 / LMArena leaderboard dataset, licensed CC BY 4.0. RouterPlex includes only exact case-insensitive model-ID matches. Official leaderboard: https://arena.ai/leaderboard. Dataset: https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset. Dataset commit: 4e52c8e709c90a4cad8498d9db5aad11709b04e0. LMArena is not affiliated with RouterPlex.

LMArena Text Leaderboard

2026-08-03 text_style_control 0fdff69b4fd7

writingRank #61480.0 raw98.7 percentile

Bradley-Terry ratings from LMArena's style-controlled text leaderboard. RouterPlex preserves the raw rating, source rank, confidence interval, vote count, and publish date. The displayed external score is the source-rank percentile within each source category.

Published 2026-08-03 / 9,620 source votes / retrieved 2026-08-07 / LMArena leaderboard dataset, licensed CC BY 4.0. RouterPlex includes only exact case-insensitive model-ID matches. Official leaderboard: https://arena.ai/leaderboard. Dataset: https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset. Dataset commit: 4e52c8e709c90a4cad8498d9db5aad11709b04e0. LMArena is not affiliated with RouterPlex.

LMArena Text Leaderboard

2026-08-03 text_style_control 0fdff69b4fd7

generalRank #71490.9 raw98.4 percentile

Bradley-Terry ratings from LMArena's style-controlled text leaderboard. RouterPlex preserves the raw rating, source rank, confidence interval, vote count, and publish date. The displayed external score is the source-rank percentile within each source category.

Published 2026-08-03 / 19,164 source votes / retrieved 2026-08-07 / LMArena leaderboard dataset, licensed CC BY 4.0. RouterPlex includes only exact case-insensitive model-ID matches. Official leaderboard: https://arena.ai/leaderboard. Dataset: https://huggingface.co/datasets/lmarena-ai/leaderboard-dataset. Dataset commit: 4e52c8e709c90a4cad8498d9db5aad11709b04e0. LMArena is not affiliated with RouterPlex.

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Claude Opus 4.7 Benchmarks · RouterPlex