# GPT-5.6 Luna vs Grok 4.6

As of Oct 15, 2026, GPT-5.6 Luna leads Grok 4.6 in 3 of 10 shared categories: Vision, Factuality, and Abstraction (ARC).

GPT-5.6 Luna: $0.44999999999999996 per 1M blended tokens.

Grok 4.6: $3 per 1M blended tokens.

GPT-5.6 Luna: closed weights.

Grok 4.6: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in General LLM at #61 against #66.
- Which to pick, Reasoning: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in Reasoning at #55 against #69.
- Which to pick, Science: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in Science at #10 against #25.
- Which to pick, Coding: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in Coding at #14 against #16.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in Coding › Agentic at #14 against #16.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in Coding › Web dev at #22 against #46.
- Which to pick, Long context: As of Oct 15, 2026, Grok 4.6 leads GPT-5.6 Luna in Long context at #48 against #80.
- Which to pick, Vision: As of Oct 15, 2026, GPT-5.6 Luna leads Grok 4.6 in Vision at #19 against #24.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.6 Luna leads Grok 4.6 in Factuality at #39 against #62.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Luna leads Grok 4.6 in Abstraction (ARC) at #19 against #20.

As of Oct 15, 2026, GPT-5.6 Luna is ranked #16 in Coding (since Oct 15, 2026; sources Terminal-Bench 4.0; methodology v1.0).

As of Oct 15, 2026, Grok 4.6 is ranked #10 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).