Claude Opus 4.8 vs Kimi K2 6
As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
Kimi K2 6
It used to be. Was SOTA in Coding › Web dev.
| Category | Claude Opus 4.8 | Kimi K2 6 |
|---|---|---|
| General LLM | #20 · #20 in General LLM Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #40 · #40 in General LLM Margin 27.21088435374149 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 7.534246575342465 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 | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 | #29 · #29 in Science Margin — Epoch AI benchmarking hub · Apr 20, 2026 |
| Coding | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #12 · #12 in Coding › Agentic Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #33 · Was SOTA · Coding › Web dev Margin 29.90654205607477 LMArena leaderboard dataset · Oct 13, 2026 | #45 · #45 in Coding › Web dev Margin 41.12149532710281 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #10 · Was SOTA · Long context Margin 6.802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Long context Margin 25.17006802721089 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 | #30 · #30 in Vision Margin 89.47368421052632 Epoch AI benchmarking hub · Apr 20, 2026 |
| Factuality | #21 · #21 in Factuality Margin 16.417910447761187 LMArena leaderboard dataset · Oct 13, 2026 | #40 · #40 in Factuality Margin 30.59701492537313 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 | — |
Claude Opus 4.8: $10 per 1M blended tokens.
Kimi K2 6: $1.3399999999999999 per 1M blended tokens.
Claude Opus 4.8: closed weights.
Kimi K2 6: open weights.
General LLM: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in General LLM at #20 against #40.
Reasoning: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Reasoning at #10 against #38.
Science: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Science at #27 against #29.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Coding › Web dev at #33 against #45.
Long context: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Long context at #10 against #37.
Vision: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Vision at #13 against #30.
Factuality: As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Factuality at #21 against #40.
Claude Opus 4.8 or Kimi K2 6?
As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in 7 of 7 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 4.8 or Kimi K2 6 for General LLM?
As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in General LLM at #20 against #40.
Claude Opus 4.8 or Kimi K2 6 for Reasoning?
As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Reasoning at #10 against #38.
Claude Opus 4.8 or Kimi K2 6 for Science?
As of Oct 15, 2026, Claude Opus 4.8 leads Kimi K2 6 in Science at #27 against #29.