GPT-5 vs Kimi K3
As of Oct 15, 2026, GPT-5 leads Kimi K3 in 0 of 7 shared categories.
GPT-5
It used to be. Was SOTA in General LLM.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
| Category | GPT-5 | Kimi K3 |
|---|---|---|
| General LLM | #95 · Was SOTA · General LLM Margin 50.53191489361702 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in General LLM Margin 6.914893617021278 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #103 · Was SOTA · Reasoning Margin 55.319148936170215 LMArena leaderboard dataset · Oct 13, 2026 | #7 · #7 in Reasoning Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #15 · Was SOTA · Math Margin 31.111111111111114 Epoch AI benchmarking hub · Aug 7, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #54 · #54 in Science Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #17 · #17 in Science Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 |
| Coding › Web dev | #72 · #72 in Coding › Web dev Margin 56.8 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · Coding › Web dev Margin 8.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #142 · Was SOTA · Long context Margin 75.53191489361703 LMArena leaderboard dataset · Oct 13, 2026 | #8 · Was SOTA · Long context Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 |
| Factuality | #119 · #119 in Factuality Margin 69.76744186046511 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Factuality Margin 13.372093023255815 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #34 · #34 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Aug 7, 2025 | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 |
GPT-5: $3.4375000000000004 per 1M blended tokens.
Kimi K3: $4.109999999999999 per 1M blended tokens.
GPT-5: closed weights.
Kimi K3: open weights.
General LLM: As of Oct 15, 2026, Kimi K3 leads GPT-5 in General LLM at #13 against #95.
Reasoning: As of Oct 15, 2026, Kimi K3 leads GPT-5 in Reasoning at #7 against #103.
Science: As of Oct 15, 2026, Kimi K3 leads GPT-5 in Science at #17 against #54.
Coding › Web dev: As of Oct 15, 2026, Kimi K3 leads GPT-5 in Coding › Web dev at #12 against #72.
Long context: As of Oct 15, 2026, Kimi K3 leads GPT-5 in Long context at #8 against #142.
Factuality: As of Oct 15, 2026, Kimi K3 leads GPT-5 in Factuality at #22 against #119.
Abstraction (ARC): As of Oct 15, 2026, Kimi K3 leads GPT-5 in Abstraction (ARC) at #8 against #34.
GPT-5 or Kimi K3?
As of Oct 15, 2026, GPT-5 leads Kimi K3 in 0 of 7 shared categories.
GPT-5 or Kimi K3 for General LLM?
As of Oct 15, 2026, Kimi K3 leads GPT-5 in General LLM at #13 against #95.
GPT-5 or Kimi K3 for Reasoning?
As of Oct 15, 2026, Kimi K3 leads GPT-5 in Reasoning at #7 against #103.
GPT-5 or Kimi K3 for Science?
As of Oct 15, 2026, Kimi K3 leads GPT-5 in Science at #17 against #54.