Claude Opus 5 vs Step 5 Preview
As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
Step 5 Preview
#31 Best current rank: #31 in Coding › Web dev, as of Oct 14, 2026.
| Category | Claude Opus 5 | Step 5 Preview |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #60 · #60 in General LLM Margin 40.816326530612244 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 6.849315068493155 LMArena leaderboard dataset · Oct 13, 2026 | #49 · #49 in Reasoning Margin 34.246575342465746 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 | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | — |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #6 · Was SOTA · Coding › Web dev Margin 4.672897196261687 LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in Coding › Web dev Margin 28.037383177570092 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 | #56 · #56 in Long context Margin 38.095238095238095 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 3.731343283582092 LMArena leaderboard dataset · Oct 13, 2026 | #57 · #57 in Factuality Margin 43.28358208955224 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 24, 2026 | — |
Claude Opus 5: $10 per 1M blended tokens.
Step 5 Preview: $1.4249999999999998 per 1M blended tokens.
Claude Opus 5: closed weights.
Step 5 Preview: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in General LLM at #11 against #60.
Reasoning: As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in Reasoning at #9 against #49.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in Coding › Web dev at #6 against #31.
Long context: As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in Long context at #9 against #56.
Factuality: As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in Factuality at #4 against #57.
Claude Opus 5 · Step 5 Preview
Claude Opus 5 or Step 5 Preview?
As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Opus 5 or Step 5 Preview for General LLM?
As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in General LLM at #11 against #60.
Claude Opus 5 or Step 5 Preview for Reasoning?
As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in Reasoning at #9 against #49.
Claude Opus 5 or Step 5 Preview for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5 leads Step 5 Preview in Coding › Web dev at #6 against #31.