Claude Opus 4.6 vs Kimi K2 5 Instant
As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
Kimi K2 5 Instant
#71 Best current rank: #71 in Reasoning, as of Oct 14, 2026.
| Category | Claude Opus 4.6 | Kimi K2 5 Instant |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #80 · #80 in General LLM Margin 54.42176870748299 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in Reasoning Margin 49.31506849315068 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | — |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in Coding › Web dev Margin 65.42056074766356 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #78 · #78 in Long context Margin 53.06122448979592 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in Factuality Margin 64.17910447761194 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
Kimi K2 5 Instant: price per 1M tokens is unset in the catalog.
Claude Opus 4.6: closed weights.
Kimi K2 5 Instant: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in General LLM at #4 against #80.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in Reasoning at #2 against #71.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in Coding › Web dev at #35 against #71.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in Long context at #2 against #78.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in Factuality at #3 against #85.
Claude Opus 4.6 · Kimi K2 5 Instant
Claude Opus 4.6 or Kimi K2 5 Instant?
As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6 or Kimi K2 5 Instant for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in General LLM at #4 against #80.
Claude Opus 4.6 or Kimi K2 5 Instant for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in Reasoning at #2 against #71.
Claude Opus 4.6 or Kimi K2 5 Instant for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 4.6 leads Kimi K2 5 Instant in Coding › Web dev at #35 against #71.