# Claude Sonnet 5.5 vs GPT-6 Sol

As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in 9 of 9 shared categories: General LLM, Reasoning, Science, Coding, Coding › Agentic, Coding › Web dev, Long context, Vision, and Factuality.

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

GPT-6 Sol: $4.000000000000001 per 1M blended tokens.

Claude Sonnet 5.5: closed weights.

GPT-6 Sol: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in General LLM at #29 against #54.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Reasoning at #18 against #49.
- Which to pick, Science: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Science at #3 against #8.
- Which to pick, Coding: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Coding at #1 against #5.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Coding › Agentic at #1 against #5.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Coding › Web dev at #3 against #7.
- Which to pick, Long context: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Long context at #11 against #57.
- Which to pick, Vision: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Vision at #1 against #9.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Sonnet 5.5 leads GPT-6 Sol in Factuality at #17 against #88.

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-6 Sol is ranked #5 in Coding (since Oct 15, 2026; sources Terminal-Bench 4.0; methodology v1.0).