# Claude Sonnet 5.5 vs GPT-4 Turbo

As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-4 Turbo in 1 of 2 shared categories: Science.

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

GPT-4 Turbo: $15.000000000000002 per 1M blended tokens.

Claude Sonnet 5.5: closed weights.

GPT-4 Turbo: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-4 Turbo leads Claude Sonnet 5.5 in General LLM at #11 against #29.
- Which to pick, Science: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-4 Turbo in Science at #3 against #139.

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-4 Turbo is ranked #11 in General LLM (since Oct 15, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).