# GLM 5.3 Flash vs Grok 4.5

As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in 7 of 10 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, and Abstraction (ARC).

GLM 5.3 Flash: $0.2375 per 1M blended tokens.

Grok 4.5: $3 per 1M blended tokens.

GLM 5.3 Flash: open weights.

Grok 4.5: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in General LLM at #34 against #45.
- Which to pick, Reasoning: As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in Reasoning at #27 against #44.
- Which to pick, Science: As of Oct 15, 2026, Grok 4.5 leads GLM 5.3 Flash in Science at #14 against #34.
- Which to pick, Coding: As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in Coding at #10 against #19.
- Which to pick, Coding › Agentic: As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in Coding › Agentic at #10 against #19.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in Coding › Web dev at #24 against #36.
- Which to pick, Long context: As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in Long context at #35 against #41.
- Which to pick, Vision: As of Oct 15, 2026, GLM 5.3 Flash and Grok 4.5 share #29 in Vision.
- Which to pick, Factuality: As of Oct 15, 2026, Grok 4.5 leads GLM 5.3 Flash in Factuality at #30 against #34.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GLM 5.3 Flash leads Grok 4.5 in Abstraction (ARC) at #14 against #21.

As of Oct 15, 2026, GLM 5.3 Flash is state of the art on best per dollar in Coding (since Oct 14, 2026; sources Terminal-Bench 4.0; 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).