Claude Opus 5 vs Kimi K2 6
As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
Kimi K2 6
It used to be. Was SOTA in Coding › Web dev.
| Category | Claude Opus 5 | Kimi K2 6 |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #40 · #40 in General LLM Margin 27.21088435374149 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 6.849315068493155 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in Reasoning Margin 26.71232876712328 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #29 · #29 in Science Margin — Epoch AI benchmarking hub · Apr 20, 2026 |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Apr 20, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #6 · Was SOTA · Coding › Web dev Margin 4.672897196261687 LMArena leaderboard dataset · Oct 13, 2026 | #45 · #45 in Coding › Web dev Margin 41.12149532710281 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Long context Margin 25.17006802721089 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #30 · #30 in Vision Margin 89.47368421052632 Epoch AI benchmarking hub · Apr 20, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 3.731343283582092 LMArena leaderboard dataset · Oct 13, 2026 | #40 · #40 in Factuality Margin 30.59701492537313 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 24, 2026 | — |
Claude Opus 5: $10 per 1M blended tokens.
Kimi K2 6: $1.3399999999999999 per 1M blended tokens.
Claude Opus 5: closed weights.
Kimi K2 6: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in General LLM at #11 against #40.
Reasoning: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Reasoning at #9 against #38.
Science: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Science at #12 against #29.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Coding › Web dev at #6 against #45.
Long context: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Long context at #9 against #37.
Vision: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Vision at #12 against #30.
Factuality: As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Factuality at #4 against #40.
Claude Opus 5 or Kimi K2 6?
As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 5 or Kimi K2 6 for General LLM?
As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in General LLM at #11 against #40.
Claude Opus 5 or Kimi K2 6 for Reasoning?
As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Reasoning at #9 against #38.
Claude Opus 5 or Kimi K2 6 for Science?
As of Oct 14, 2026, Claude Opus 5 leads Kimi K2 6 in Science at #12 against #29.