Claude Haiku 4.5 vs Claude Opus 4.8
As of Oct 14, 2026, Claude Haiku 4.5 leads Claude Opus 4.8 in 0 of 7 shared categories.
Claude Haiku 4.5
#78 Best recorded rank: #78 in Abstraction (ARC), as of Oct 14, 2026.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
| Category | Claude Haiku 4.5 | Claude Opus 4.8 |
|---|---|---|
| General LLM | #104 · #104 in General LLM Margin 70.74829931972789 LMArena leaderboard dataset · Oct 13, 2026 | #20 · #20 in General LLM Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #91 · #91 in Reasoning Margin 63.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #10 · #10 in Reasoning Margin 7.534246575342465 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 | #109 · #109 in Science Margin — Epoch AI benchmarking hub · Oct 15, 2025 | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 |
| Coding | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #12 · #12 in Coding › Agentic Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #92 · #92 in Coding › Web dev Margin 85.04672897196262 LMArena leaderboard dataset · Oct 13, 2026 | #33 · Was SOTA · Coding › Web dev Margin 29.90654205607477 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #84 · #84 in Long context Margin 57.142857142857146 LMArena leaderboard dataset · Oct 13, 2026 | #10 · Was SOTA · Long context Margin 6.802721088435391 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 |
| Factuality | #97 · #97 in Factuality Margin 73.13432835820896 LMArena leaderboard dataset · Oct 13, 2026 | #21 · #21 in Factuality Margin 16.417910447761187 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #78 · #78 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Oct 15, 2025 | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 |
Claude Haiku 4.5: $2.0000000000000004 per 1M blended tokens.
Claude Opus 4.8: $10 per 1M blended tokens.
Claude Haiku 4.5: closed weights.
Claude Opus 4.8: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in General LLM at #20 against #104.
Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Reasoning at #10 against #91.
Science: As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Science at #27 against #109.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Coding › Web dev at #33 against #92.
Long context: As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Long context at #10 against #84.
Factuality: As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Factuality at #21 against #97.
Abstraction (ARC): As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Abstraction (ARC) at #12 against #78.
Claude Haiku 4.5 · Claude Opus 4.8
Claude Haiku 4.5 or Claude Opus 4.8?
As of Oct 14, 2026, Claude Haiku 4.5 leads Claude Opus 4.8 in 0 of 7 shared categories.
Claude Haiku 4.5 or Claude Opus 4.8 for General LLM?
As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in General LLM at #20 against #104.
Claude Haiku 4.5 or Claude Opus 4.8 for Reasoning?
As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Reasoning at #10 against #91.
Claude Haiku 4.5 or Claude Opus 4.8 for Science?
As of Oct 14, 2026, Claude Opus 4.8 leads Claude Haiku 4.5 in Science at #27 against #109.