# Claude Sonnet 5.5 vs GPT-5.4 Nano

As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-5.4 Nano in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.

Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.

GPT-5.4 Nano: $0.4625 per 1M blended tokens.

Claude Sonnet 5.5: closed weights.

GPT-5.4 Nano: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-5.4 Nano in General LLM at #29 against #149.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-5.4 Nano in Reasoning at #18 against #143.
- Which to pick, Science: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-5.4 Nano in Science at #3 against #73.
- Which to pick, Long context: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-5.4 Nano in Long context at #11 against #157.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-5.4 Nano in Factuality at #17 against #126.

As of Oct 15, 2026, Claude Sonnet 5.5 is tied for state of the art in Coding (since Oct 6, 2026; sources Terminal-Bench 4.0; methodology v1.0).

As of Oct 15, 2026, GPT-5.4 Nano is ranked #43 in Abstraction (ARC) (since Oct 15, 2026; sources ARC-AGI; methodology v1.0).