Claude Opus 5.5 vs Mimo V2.6 Pro
As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
Mimo V2.6 Pro
Yes. Yes on General LLM (open weights); General LLM (best per dollar). Not the overall leader.
| Category | Claude Opus 5.5 | Mimo V2.6 Pro |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in General LLM Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #21 · #21 in Reasoning Margin 15.06849315068493 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · 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 | #16 · #16 in Coding › Web dev Margin 14.018691588785046 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in Long context Margin 12.244897959183675 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 | #8 · #8 in Factuality Margin 6.71641791044776 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 V2.6 Pro: $0.54375 per 1M blended tokens.
Claude Opus 5.5: closed weights.
Mimo V2.6 Pro: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in General LLM at #2 against #22.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in Reasoning at #1 against #21.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in Coding › Web dev at #1 against #16.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in Long context at #1 against #18.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in Factuality at #1 against #8.
Claude Opus 5.5 · Mimo V2.6 Pro
Claude Opus 5.5 or Mimo V2.6 Pro?
As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5.5 or Mimo V2.6 Pro for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in General LLM at #2 against #22.
Claude Opus 5.5 or Mimo V2.6 Pro for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in Reasoning at #1 against #21.
Claude Opus 5.5 or Mimo V2.6 Pro for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads Mimo V2.6 Pro in Coding › Web dev at #1 against #16.