# Claude 3.5 Sonnet vs GPT-5.4 Pro

As of Oct 15, 2026, Claude 3.5 Sonnet leads GPT-5.4 Pro in 0 of 2 shared categories.

Claude 3.5 Sonnet: price per 1M tokens is unset in the catalog.

GPT-5.4 Pro: $67.5 per 1M blended tokens.

Claude 3.5 Sonnet: closed weights.

GPT-5.4 Pro: closed weights.

- Which to pick, Math: As of Oct 15, 2026, GPT-5.4 Pro leads Claude 3.5 Sonnet in Math at #6 against #43.
- Which to pick, Science: As of Oct 15, 2026, GPT-5.4 Pro leads Claude 3.5 Sonnet in Science at #6 against #119.

As of Oct 15, 2026, Claude 3.5 Sonnet is a former state-of-the-art holder in General LLM (since Aug 28, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 2026, GPT-5.4 Pro is a former state-of-the-art holder in Math (since Apr 16, 2026; sources Humanity's Last Exam; methodology v1.0).