Claude Opus 4.8 vs Qwen3 5 Flash
As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
Qwen3 5 Flash
#66 Best recorded rank: #66 in Science, as of Oct 15, 2026.
| Category | Claude Opus 4.8 | Qwen3 5 Flash |
|---|---|---|
| General LLM | #21 · #21 in General LLM Margin 11.170212765957444 LMArena leaderboard dataset · Oct 13, 2026 | #154 · #154 in General LLM Margin 81.91489361702128 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #157 · #157 in Reasoning Margin 84.04255319148936 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 | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 | #66 · #66 in Science Margin — Epoch AI benchmarking hub · Feb 25, 2026 |
| Coding | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #12 · #12 in Coding › Agentic Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 27.200000000000003 LMArena leaderboard dataset · Oct 13, 2026 | #114 · #114 in Coding › Web dev Margin 90.4 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #10 · Was SOTA · Long context Margin 5.319148936170208 LMArena leaderboard dataset · Oct 13, 2026 | #159 · #159 in Long context Margin 84.57446808510639 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 | — |
| Factuality | #24 · #24 in Factuality Margin 14.534883720930239 LMArena leaderboard dataset · Oct 13, 2026 | #131 · #131 in Factuality Margin 76.74418604651163 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 | — |
Claude Opus 4.8: $10 per 1M blended tokens.
Qwen3 5 Flash: price per 1M tokens is unset in the catalog.
Claude Opus 4.8: closed weights.
Qwen3 5 Flash: closed weights.
General LLM: As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in General LLM at #21 against #154.
Reasoning: As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Reasoning at #10 against #157.
Science: As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Science at #27 against #66.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Coding › Web dev at #35 against #114.
Long context: As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Long context at #10 against #159.
Factuality: As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Factuality at #24 against #131.
Claude Opus 4.8 · Qwen3 5 Flash
Claude Opus 4.8 or Qwen3 5 Flash?
As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.8 or Qwen3 5 Flash for General LLM?
As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in General LLM at #21 against #154.
Claude Opus 4.8 or Qwen3 5 Flash for Reasoning?
As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Reasoning at #10 against #157.
Claude Opus 4.8 or Qwen3 5 Flash for Science?
As of Oct 15, 2026, Claude Opus 4.8 leads Qwen3 5 Flash in Science at #27 against #66.