Claude Opus 4.6 vs Step 5 Preview
As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
Step 5 Preview
#31 Best current rank: #31 in Coding › Web dev, as of Oct 14, 2026.
| Category | Claude Opus 4.6 | Step 5 Preview |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #60 · #60 in General LLM Margin 40.816326530612244 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #49 · #49 in Reasoning Margin 34.246575342465746 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 | #31 · #31 in Coding › Web dev Margin 28.037383177570092 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #56 · #56 in Long context Margin 38.095238095238095 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #57 · #57 in Factuality Margin 43.28358208955224 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
Step 5 Preview: $1.4249999999999998 per 1M blended tokens.
Claude Opus 4.6: closed weights.
Step 5 Preview: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in General LLM at #4 against #60.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in Reasoning at #2 against #49.
Coding › Web dev: As of Oct 14, 2026, Step 5 Preview leads Claude Opus 4.6 in Coding › Web dev at #31 against #35.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in Long context at #2 against #56.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in Factuality at #3 against #57.
Claude Opus 4.6 · Step 5 Preview
Claude Opus 4.6 or Step 5 Preview?
As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.6 or Step 5 Preview for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in General LLM at #4 against #60.
Claude Opus 4.6 or Step 5 Preview for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads Step 5 Preview in Reasoning at #2 against #49.
Claude Opus 4.6 or Step 5 Preview for Coding › Web dev?
As of Oct 14, 2026, Step 5 Preview leads Claude Opus 4.6 in Coding › Web dev at #31 against #35.