# GPT-5.6 Terra vs Grok 4.5

As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in 7 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Vision, Factuality, and Abstraction (ARC).

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

Grok 4.5: $3 per 1M blended tokens.

GPT-5.6 Terra: closed weights.

Grok 4.5: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in General LLM at #44 against #45.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Reasoning at #41 against #44.
- Which to pick, Science: As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Science at #14 against #15.
- Which to pick, Coding: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Coding at #13 against #19.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Coding › Agentic at #13 against #19.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Coding › Web dev at #36 against #44.
- Which to pick, Long context: As of Oct 15, 2026, Grok 4.5 leads GPT-5.6 Terra in Long context at #41 against #54.
- Which to pick, Vision: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Vision at #11 against #29.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Factuality at #28 against #30.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Terra leads Grok 4.5 in Abstraction (ARC) at #4 against #21.

As of Oct 15, 2026, GPT-5.6 Terra is ranked #4 in Abstraction (ARC) (since Oct 15, 2026; sources ARC-AGI; methodology v1.0).

As of Oct 15, 2026, Grok 4.5 is ranked #14 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).