# Claude Opus 4.8 vs GPT-5.6 Terra

As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in 7 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.

Claude Opus 4.8: $10 per 1M blended tokens.

GPT-5.6 Terra: $4.5 per 1M blended tokens.

Claude Opus 4.8: closed weights.

GPT-5.6 Terra: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in General LLM at #20 against #35.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in Reasoning at #10 against #35.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4.8 in Science at #15 against #27.
- Which to pick, Coding: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in Coding at #12 against #13.
- Which to pick, Coding › Agentic: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in Coding › Agentic at #12 against #13.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in Coding › Web dev at #33 against #42.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in Long context at #10 against #46.
- Which to pick, Vision: As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4.8 in Vision at #11 against #13.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-5.6 Terra in Factuality at #21 against #24.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, GPT-5.6 Terra leads Claude Opus 4.8 in Abstraction (ARC) at #4 against #12.

As of Oct 14, 2026, Claude Opus 4.8 is a former state-of-the-art holder in Coding › Web dev (since Jun 5, 2026; sources LMArena WebDev; methodology v1.0).

As of Oct 14, 2026, GPT-5.6 Terra is ranked #4 in Abstraction (ARC) (since Oct 14, 2026; sources ARC-AGI; methodology v1.0).