Claude Opus 4.6 vs Longcat Flash Chat
As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
Longcat Flash Chat
#106 Best current rank: #106 in Reasoning, as of Oct 14, 2026.
| Category | Claude Opus 4.6 | Longcat Flash Chat |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #115 · #115 in General LLM Margin 78.2312925170068 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #106 · #106 in Reasoning Margin 73.2876712328767 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | — |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #133 · #133 in Long context Margin 90.47619047619048 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | — |
Claude Opus 4.6: $10 per 1M blended tokens.
Longcat Flash Chat: price per 1M tokens is unset in the catalog.
Claude Opus 4.6: closed weights.
Longcat Flash Chat: open weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in General LLM at #4 against #115.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in Reasoning at #2 against #106.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in Long context at #2 against #133.
Claude Opus 4.6 · Longcat Flash Chat
Claude Opus 4.6 or Longcat Flash Chat?
As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in 3 of 3 shared categories: General LLM, Reasoning, and Long context.
Claude Opus 4.6 or Longcat Flash Chat for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in General LLM at #4 against #115.
Claude Opus 4.6 or Longcat Flash Chat for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in Reasoning at #2 against #106.
Claude Opus 4.6 or Longcat Flash Chat for Long context?
As of Oct 14, 2026, Claude Opus 4.6 leads Longcat Flash Chat in Long context at #2 against #133.