# Claude Fable 5 vs GPT-5.5 Instant

As of Oct 15, 2026, Claude Fable 5 leads GPT-5.5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.

Claude Fable 5: $20 per 1M blended tokens.

GPT-5.5 Instant: price per 1M tokens is unset in the catalog.

Claude Fable 5: closed weights.

GPT-5.5 Instant: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Fable 5 leads GPT-5.5 Instant in General LLM at #3 against #36.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Fable 5 leads GPT-5.5 Instant in Reasoning at #3 against #38.
- Which to pick, Science: As of Oct 15, 2026, Claude Fable 5 leads GPT-5.5 Instant in Science at #56 against #65.
- Which to pick, Long context: As of Oct 15, 2026, Claude Fable 5 leads GPT-5.5 Instant in Long context at #3 against #46.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Fable 5 leads GPT-5.5 Instant in Factuality at #7 against #78.

As of Oct 15, 2026, Claude Fable 5 is near state of the art, rank #3 in General LLM (since Oct 15, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, GPT-5.5 Instant is ranked #36 in General LLM (since Oct 15, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).