GLM 5.3 vs GPT-5.6 Luna
As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in 7 of 8 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.
GLM 5.3
Yes. Yes on General LLM (open weights); Reasoning (best per dollar). Not the overall leader.
GPT-5.6 Luna
#16 Best current rank: #16 in Coding, as of Oct 14, 2026.
| Category | GLM 5.3 | GPT-5.6 Luna |
|---|---|---|
| General LLM | #23 · #23 in General LLM Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 | #53 · #53 in General LLM Margin 36.054421768707485 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #19 · #19 in Reasoning Margin 13.698630136986296 LMArena leaderboard dataset · Oct 13, 2026 | #55 · #55 in Reasoning Margin 38.35616438356164 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #28 · #28 in Science Margin — Epoch AI benchmarking hub · Aug 14, 2026 | #25 · #25 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #7 · #7 in Coding Margin 36.36363636363637 Terminal-Bench Harbor Hub · Oct 6, 2026 | #16 · #16 in Coding Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #7 · #7 in Coding › Agentic Margin 36.36363636363637 Terminal-Bench Harbor Hub · Oct 6, 2026 | #16 · #16 in Coding › Agentic Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #18 · #18 in Coding › Web dev Margin 15.887850467289724 LMArena leaderboard dataset · Oct 13, 2026 | #43 · #43 in Coding › Web dev Margin 39.25233644859813 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #27 · #27 in Long context Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #65 · #65 in Long context Margin 44.21768707482993 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #19 · #19 in Vision Margin 52.63157894736842 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #27 · #27 in Factuality Margin 20.895522388059703 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Factuality Margin 26.86567164179104 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #19 · #19 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
GLM 5.3: $1.2592499999999998 per 1M blended tokens.
GPT-5.6 Luna: $0.44999999999999996 per 1M blended tokens.
GLM 5.3: open weights.
GPT-5.6 Luna: closed weights.
General LLM: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in General LLM at #23 against #53.
Reasoning: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Reasoning at #19 against #55.
Science: As of Oct 14, 2026, GPT-5.6 Luna leads GLM 5.3 in Science at #25 against #28.
Coding: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Coding at #7 against #16.
Coding › Agentic: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Coding › Agentic at #7 against #16.
Coding › Web dev: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Coding › Web dev at #18 against #43.
Long context: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Long context at #27 against #65.
Factuality: As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Factuality at #27 against #35.
GLM 5.3 or GPT-5.6 Luna?
As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in 7 of 8 shared categories: General LLM, Reasoning, Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.
GLM 5.3 or GPT-5.6 Luna for General LLM?
As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in General LLM at #23 against #53.
GLM 5.3 or GPT-5.6 Luna for Reasoning?
As of Oct 14, 2026, GLM 5.3 leads GPT-5.6 Luna in Reasoning at #19 against #55.
GLM 5.3 or GPT-5.6 Luna for Science?
As of Oct 14, 2026, GPT-5.6 Luna leads GLM 5.3 in Science at #25 against #28.