GPT-5.4 vs Hy3
As of Oct 14, 2026, GPT-5.4 leads Hy3 in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.
GPT-5.4
It used to be. Was SOTA in General LLM.
Hy3
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
| Category | GPT-5.4 | Hy3 |
|---|---|---|
| General LLM | #28 · Was SOTA · General LLM Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 | #52 · #52 in General LLM Margin 35.374149659863946 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #29 · #29 in Reasoning Margin 20.54794520547945 LMArena leaderboard dataset · Oct 13, 2026 | #52 · #52 in Reasoning Margin 36.3013698630137 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 | #47 · #47 in Coding › Web dev Margin 42.99065420560748 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #34 · #34 in Long context Margin 23.12925170068027 LMArena leaderboard dataset · Oct 13, 2026 | #52 · #52 in Long context Margin 35.374149659863946 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #6 · Was SOTA · Factuality Margin 5.22388059701494 LMArena leaderboard dataset · Oct 13, 2026 | #61 · #61 in Factuality Margin 46.26865671641791 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.
Hy3: $0.144375 per 1M blended tokens.
GPT-5.4: closed weights.
Hy3: open weights.
General LLM: As of Oct 14, 2026, GPT-5.4 leads Hy3 in General LLM at #28 against #52.
Reasoning: As of Oct 14, 2026, GPT-5.4 leads Hy3 in Reasoning at #29 against #52.
Coding › Web dev: As of Oct 14, 2026, Hy3 leads GPT-5.4 in Coding › Web dev at #47 against #55.
Long context: As of Oct 14, 2026, GPT-5.4 leads Hy3 in Long context at #34 against #52.
Factuality: As of Oct 14, 2026, GPT-5.4 leads Hy3 in Factuality at #6 against #61.
GPT-5.4 or Hy3?
As of Oct 14, 2026, GPT-5.4 leads Hy3 in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.
GPT-5.4 or Hy3 for General LLM?
As of Oct 14, 2026, GPT-5.4 leads Hy3 in General LLM at #28 against #52.
GPT-5.4 or Hy3 for Reasoning?
As of Oct 14, 2026, GPT-5.4 leads Hy3 in Reasoning at #29 against #52.
GPT-5.4 or Hy3 for Coding › Web dev?
As of Oct 14, 2026, Hy3 leads GPT-5.4 in Coding › Web dev at #47 against #55.