GPT-5.5 vs Mimo V2.5 Pro
As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
GPT-5.5
It used to be. Was SOTA in General LLM.
Mimo V2.5 Pro
#24 Best current rank: #24 in Long context, as of Oct 14, 2026.
| Category | GPT-5.5 | Mimo V2.5 Pro |
|---|---|---|
| General LLM | #21 · Was SOTA · General LLM Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | #34 · #34 in General LLM Margin 23.12925170068027 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #25 · #25 in Reasoning Margin 17.808219178082197 LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in Reasoning Margin 21.917808219178085 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 | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 | — |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #44 · #44 in Coding › Web dev Margin 40.18691588785047 LMArena leaderboard dataset · Oct 13, 2026 | #51 · #51 in Coding › Web dev Margin 46.728971962616825 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #23 · Was SOTA · Long context Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Long context Margin 16.326530612244895 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 | — |
| Factuality | #5 · Was SOTA · Factuality Margin 4.477611940298502 LMArena leaderboard dataset · Oct 13, 2026 | #28 · #28 in Factuality Margin 21.641791044776113 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 | — |
GPT-5.5: $11.25 per 1M blended tokens.
Mimo V2.5 Pro: $0.54375 per 1M blended tokens.
GPT-5.5: closed weights.
Mimo V2.5 Pro: open weights.
General LLM: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in General LLM at #21 against #34.
Reasoning: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Reasoning at #25 against #31.
Coding › Web dev: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Coding › Web dev at #44 against #51.
Long context: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Long context at #23 against #24.
Factuality: As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Factuality at #5 against #28.
GPT-5.5 or Mimo V2.5 Pro?
As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
GPT-5.5 or Mimo V2.5 Pro for General LLM?
As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in General LLM at #21 against #34.
GPT-5.5 or Mimo V2.5 Pro for Reasoning?
As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Reasoning at #25 against #31.
GPT-5.5 or Mimo V2.5 Pro for Coding › Web dev?
As of Oct 14, 2026, GPT-5.5 leads Mimo V2.5 Pro in Coding › Web dev at #44 against #51.