Claude Opus 5.5 vs Mimo V2.5
As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5
Yes. SOTA in Reasoning (tied), Coding (tied), Coding › Agentic (tied), Coding › Web dev, Long context (tied), and Factuality (tied).
Mimo V2.5
#66 Best current rank: #66 in Coding › Web dev, as of Oct 15, 2026.
| Category | Claude Opus 5.5 | Mimo V2.5 |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.0638297872340416 LMArena leaderboard dataset · Oct 13, 2026 | #97 · #97 in General LLM Margin 51.59574468085106 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #82 · #82 in Reasoning Margin 44.148936170212764 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 | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #66 · #66 in Coding › Web dev Margin 52 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #79 · #79 in Long context Margin 42.02127659574468 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #85 · #85 in Factuality Margin 50 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
Mimo V2.5: $0.17500000000000002 per 1M blended tokens.
Claude Opus 5.5: closed weights.
Mimo V2.5: open weights.
General LLM: As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in General LLM at #2 against #97.
Reasoning: As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in Reasoning at #1 against #82.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in Coding › Web dev at #1 against #66.
Long context: As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in Long context at #1 against #79.
Factuality: As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in Factuality at #1 against #85.
Claude Opus 5.5 or Mimo V2.5?
As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or Mimo V2.5 for General LLM?
As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in General LLM at #2 against #97.
Claude Opus 5.5 or Mimo V2.5 for Reasoning?
As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in Reasoning at #1 against #82.
Claude Opus 5.5 or Mimo V2.5 for Coding › Web dev?
As of Oct 15, 2026, Claude Opus 5.5 leads Mimo V2.5 in Coding › Web dev at #1 against #66.