Claude Haiku 5.5 vs Claude Opus 4.7
As of Oct 15, 2026, Claude Haiku 5.5 leads Claude Opus 4.7 in 1 of 3 shared categories: Coding › Web dev.
Claude Haiku 5.5
Yes. Yes on Math (best per dollar). Not the overall leader.
Claude Opus 4.7
Close. Near-SOTA in Reasoning, rank #4.
| Category | Claude Haiku 5.5 | Claude Opus 4.7 |
|---|---|---|
| General LLM | — | #5 · Near-SOTA · General LLM Margin 2.659574468085111 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | — | #4 · Near-SOTA · Reasoning Margin 2.659574468085111 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #13 · #13 in Math Margin 26.66666666666667 Epoch AI benchmarking hub · Oct 7, 2026 | #10 · #10 in Math Margin 20 Epoch AI benchmarking hub · Apr 16, 2026 |
| Science | #38 · #38 in Science Margin — Epoch AI benchmarking hub · Oct 7, 2026 | #34 · #34 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2026 |
| Coding | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #28 · #28 in Coding › Web dev Margin 21.599999999999994 LMArena leaderboard dataset · Oct 13, 2026 | #34 · Was SOTA · Coding › Web dev Margin 26.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | — | #4 · Near-SOTA · Long context Margin 2.1276595744680833 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #20 · Was SOTA · Vision Margin 55.26315789473684 Epoch AI benchmarking hub · Apr 16, 2026 |
| Factuality | — | #13 · #13 in Factuality Margin 8.139534883720927 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #11 · #11 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2026 |
Claude Haiku 5.5: $0.19999999999999998 per 1M blended tokens.
Claude Opus 4.7: $10 per 1M blended tokens.
Claude Haiku 5.5: closed weights.
Claude Opus 4.7: closed weights.
Math: As of Oct 15, 2026, Claude Opus 4.7 leads Claude Haiku 5.5 in Math at #10 against #13.
Science: As of Oct 15, 2026, Claude Opus 4.7 leads Claude Haiku 5.5 in Science at #34 against #38.
Coding › Web dev: As of Oct 15, 2026, Claude Haiku 5.5 leads Claude Opus 4.7 in Coding › Web dev at #28 against #34.
Claude Haiku 5.5 · Claude Opus 4.7
Claude Haiku 5.5 or Claude Opus 4.7?
As of Oct 15, 2026, Claude Haiku 5.5 leads Claude Opus 4.7 in 1 of 3 shared categories: Coding › Web dev.
Claude Haiku 5.5 or Claude Opus 4.7 for Math?
As of Oct 15, 2026, Claude Opus 4.7 leads Claude Haiku 5.5 in Math at #10 against #13.
Claude Haiku 5.5 or Claude Opus 4.7 for Science?
As of Oct 15, 2026, Claude Opus 4.7 leads Claude Haiku 5.5 in Science at #34 against #38.
Claude Haiku 5.5 or Claude Opus 4.7 for Coding › Web dev?
As of Oct 15, 2026, Claude Haiku 5.5 leads Claude Opus 4.7 in Coding › Web dev at #28 against #34.