Kimi K2 6 vs O3 Mini
As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in 3 of 4 shared categories: Reasoning, Science, and Long context.
| Category | Kimi K2 6 | O3 Mini |
|---|---|---|
| General LLM | #40 · #40 in General LLM Margin 27.21088435374149 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in General LLM Margin — LMArena leaderboard dataset · Apr 16, 2025 |
| Reasoning | #38 · #38 in Reasoning Margin 26.71232876712328 LMArena leaderboard dataset · Oct 13, 2026 | #133 · Was SOTA · Reasoning Margin 91.78082191780823 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 | #29 · #29 in Science Margin — Epoch AI benchmarking hub · Apr 20, 2026 | #76 · #76 in Science Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Apr 20, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #45 · #45 in Coding › Web dev Margin 41.12149532710281 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #37 · #37 in Long context Margin 25.17006802721089 LMArena leaderboard dataset · Oct 13, 2026 | #145 · #145 in Long context Margin 98.63945578231292 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #30 · #30 in Vision Margin 89.47368421052632 Epoch AI benchmarking hub · Apr 20, 2026 | — |
| Factuality | #40 · #40 in Factuality Margin 30.59701492537313 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
| Abstraction (ARC) | — | #51 · #51 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jan 31, 2025 |
Kimi K2 6: $1.3399999999999999 per 1M blended tokens.
O3 Mini: $1.9250000000000003 per 1M blended tokens.
Kimi K2 6: open weights.
O3 Mini: closed weights.
General LLM: As of Oct 14, 2026, O3 Mini leads Kimi K2 6 in General LLM at #7 against #40.
Reasoning: As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in Reasoning at #38 against #133.
Science: As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in Science at #29 against #76.
Long context: As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in Long context at #37 against #145.
Kimi K2 6 or O3 Mini?
As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in 3 of 4 shared categories: Reasoning, Science, and Long context.
Kimi K2 6 or O3 Mini for General LLM?
As of Oct 14, 2026, O3 Mini leads Kimi K2 6 in General LLM at #7 against #40.
Kimi K2 6 or O3 Mini for Reasoning?
As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in Reasoning at #38 against #133.
Kimi K2 6 or O3 Mini for Science?
As of Oct 14, 2026, Kimi K2 6 leads O3 Mini in Science at #29 against #76.