Claude Fable 5 vs Step 5 Preview
As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Fable 5
Close. Near-SOTA in General LLM, rank #3.
Step 5 Preview
#33 Best current rank: #33 in Coding › Web dev, as of Oct 15, 2026.
| Category | Claude Fable 5 | Step 5 Preview |
|---|---|---|
| General LLM | #3 · Near-SOTA · General LLM Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #77 · #77 in General LLM Margin 40.95744680851064 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #3 · Near-SOTA · Reasoning Margin 2.1276595744680833 LMArena leaderboard dataset · Oct 13, 2026 | #63 · #63 in Reasoning Margin 34.04255319148936 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 | #56 · #56 in Science Margin — Epoch AI benchmarking hub · Jun 9, 2026 | — |
| Coding | #6 · #6 in Coding Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #6 · #6 in Coding › Agentic Margin 31.818181818181813 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #19 · Was SOTA · Coding › Web dev Margin 14.400000000000006 LMArena leaderboard dataset · Oct 13, 2026 | #33 · #33 in Coding › Web dev Margin 25.599999999999994 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #3 · Near-SOTA · Long context Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #68 · #68 in Long context Margin 36.170212765957444 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #5 · Was SOTA · Vision Margin 15.78947368421052 Epoch AI benchmarking hub · Jun 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #7 · Was SOTA · Factuality Margin 4.6511627906976685 LMArena leaderboard dataset · Oct 13, 2026 | #69 · #69 in Factuality Margin 40.69767441860465 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jun 9, 2026 | — |
Claude Fable 5: $20 per 1M blended tokens.
Step 5 Preview: $1.4249999999999998 per 1M blended tokens.
Claude Fable 5: closed weights.
Step 5 Preview: closed weights.
General LLM: As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in General LLM at #3 against #77.
Reasoning: As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in Reasoning at #3 against #63.
Coding › Web dev: As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in Coding › Web dev at #19 against #33.
Long context: As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in Long context at #3 against #68.
Factuality: As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in Factuality at #7 against #69.
Claude Fable 5 · Step 5 Preview
Claude Fable 5 or Step 5 Preview?
As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Fable 5 or Step 5 Preview for General LLM?
As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in General LLM at #3 against #77.
Claude Fable 5 or Step 5 Preview for Reasoning?
As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in Reasoning at #3 against #63.
Claude Fable 5 or Step 5 Preview for Coding › Web dev?
As of Oct 15, 2026, Claude Fable 5 leads Step 5 Preview in Coding › Web dev at #19 against #33.