GPT-5.4 vs Kimi K2 5 Instant
As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
GPT-5.4
It used to be. Was SOTA in General LLM.
Kimi K2 5 Instant
#71 Best current rank: #71 in Reasoning, as of Oct 14, 2026.
| Category | GPT-5.4 | Kimi K2 5 Instant |
|---|---|---|
| General LLM | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 | #80 · #80 in General LLM Margin 54.42176870748299 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #29 · #29 in Reasoning Margin 20.54794520547945 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in Reasoning Margin 49.31506849315068 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #9 · #9 in Math Margin 17.777777777777757 Epoch AI benchmarking hub · Mar 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #16 · #16 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 | — |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #55 · #55 in Coding › Web dev Margin 50.467289719626166 LMArena leaderboard dataset · Oct 13, 2026 | #71 · #71 in Coding › Web dev Margin 65.42056074766356 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #34 · #34 in Long context Margin 23.12925170068027 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 | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in Factuality Margin 64.17910447761194 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #10 · #10 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 | — |
GPT-5.4: $5.625 per 1M blended tokens.
Kimi K2 5 Instant: price per 1M tokens is unset in the catalog.
GPT-5.4: closed weights.
Kimi K2 5 Instant: open weights.
General LLM: As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in General LLM at #28 against #80.
Reasoning: As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in Reasoning at #29 against #71.
Coding › Web dev: As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in Coding › Web dev at #55 against #71.
Long context: As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in Long context at #34 against #78.
Factuality: As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in Factuality at #6 against #85.
GPT-5.4 or Kimi K2 5 Instant?
As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
GPT-5.4 or Kimi K2 5 Instant for General LLM?
As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in General LLM at #28 against #80.
GPT-5.4 or Kimi K2 5 Instant for Reasoning?
As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in Reasoning at #29 against #71.
GPT-5.4 or Kimi K2 5 Instant for Coding › Web dev?
As of Oct 14, 2026, GPT-5.4 leads Kimi K2 5 Instant in Coding › Web dev at #55 against #71.