# Claude Sonnet 4.6 vs GPT-6 Astra

As of Oct 15, 2026, Claude Sonnet 4.6 leads GPT-6 Astra in 2 of 8 shared categories: Reasoning and Long context.

Claude Sonnet 4.6: $6 per 1M blended tokens.

GPT-6 Astra: $20 per 1M blended tokens.

Claude Sonnet 4.6: closed weights.

GPT-6 Astra: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-6 Astra leads Claude Sonnet 4.6 in General LLM at #25 against #32.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Sonnet 4.6 leads GPT-6 Astra in Reasoning at #20 against #23.
- Which to pick, Science: As of Oct 15, 2026, GPT-6 Astra leads Claude Sonnet 4.6 in Science at #2 against #50.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-6 Astra leads Claude Sonnet 4.6 in Coding › Web dev at #2 against #41.
- Which to pick, Long context: As of Oct 15, 2026, Claude Sonnet 4.6 leads GPT-6 Astra in Long context at #20 against #22.
- Which to pick, Vision: As of Oct 15, 2026, GPT-6 Astra leads Claude Sonnet 4.6 in Vision at #1 against #23.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-6 Astra leads Claude Sonnet 4.6 in Factuality at #25 against #34.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-6 Astra leads Claude Sonnet 4.6 in Abstraction (ARC) at #1 against #23.

As of Oct 15, 2026, Claude Sonnet 4.6 is a former state-of-the-art holder in Long context (since Mar 19, 2026; sources LMArena Text (style-controlled, longer query); methodology v1.0).

As of Oct 15, 2026, GPT-6 Astra is state of the art in Math (since Sep 28, 2026; sources Humanity's Last Exam; methodology v1.0).