Claude Sonnet 5.5 vs Mimo V2.6 Pro
As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in 3 of 5 shared categories: Reasoning, Coding › Web dev, and Long context.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
Mimo V2.6 Pro
Yes. Yes on General LLM (open weights); General LLM (best per dollar). Not the overall leader.
| Category | Claude Sonnet 5.5 | Mimo V2.6 Pro |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in General LLM Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #21 · #21 in Reasoning Margin 15.06849315068493 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | — |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 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 | #3 · Near-SOTA · Coding › Web dev Margin 1.8691588785046775 LMArena leaderboard dataset · Oct 13, 2026 | #16 · #16 in Coding › Web dev Margin 14.018691588785046 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in Long context Margin 12.244897959183675 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Factuality Margin 6.71641791044776 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Mimo V2.6 Pro: $0.54375 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
Mimo V2.6 Pro: open weights.
General LLM: As of Oct 14, 2026, Mimo V2.6 Pro leads Claude Sonnet 5.5 in General LLM at #22 against #27.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in Reasoning at #18 against #21.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in Coding › Web dev at #3 against #16.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in Long context at #11 against #18.
Factuality: As of Oct 14, 2026, Mimo V2.6 Pro leads Claude Sonnet 5.5 in Factuality at #8 against #16.
Claude Sonnet 5.5 · Mimo V2.6 Pro
Claude Sonnet 5.5 or Mimo V2.6 Pro?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in 3 of 5 shared categories: Reasoning, Coding › Web dev, and Long context.
Claude Sonnet 5.5 or Mimo V2.6 Pro for General LLM?
As of Oct 14, 2026, Mimo V2.6 Pro leads Claude Sonnet 5.5 in General LLM at #22 against #27.
Claude Sonnet 5.5 or Mimo V2.6 Pro for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in Reasoning at #18 against #21.
Claude Sonnet 5.5 or Mimo V2.6 Pro for Coding › Web dev?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Mimo V2.6 Pro in Coding › Web dev at #3 against #16.