GLM 5.3 vs GPT-4O Mini
As of Oct 15, 2026, GLM 5.3 leads GPT-4O Mini in 1 of 2 shared categories: Science.
GLM 5.3
Yes. Yes on General LLM (open weights); Reasoning (best per dollar). Not the overall leader.
GPT-4O Mini
#11 Best recorded rank: #11 in General LLM, as of Oct 15, 2026.
| Category | GLM 5.3 | GPT-4O Mini |
|---|---|---|
| General LLM | #24 · #24 in General LLM Margin 12.765957446808514 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in General LLM Margin — LMArena leaderboard dataset · Sep 15, 2024 |
| Reasoning | #19 · #19 in Reasoning Margin 10.63829787234043 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jul 18, 2024 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | — |
| Science | #28 · #28 in Science Margin — Epoch AI benchmarking hub · Aug 14, 2026 | #161 · #161 in Science Margin — Epoch AI benchmarking hub · Jul 18, 2024 |
| Coding | #7 · #7 in Coding Margin 36.36363636363637 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 27, 2024 |
| Coding › Agentic | #7 · #7 in Coding › Agentic Margin 36.36363636363637 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #20 · #20 in Coding › Web dev Margin 15.200000000000003 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #31 · #31 in Long context Margin 16.489361702127653 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #31 · #31 in Factuality Margin 18.604651162790702 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Jul 18, 2024 |
GLM 5.3: $1.275 per 1M blended tokens.
GPT-4O Mini: $0.26249999999999996 per 1M blended tokens.
GLM 5.3: open weights.
GPT-4O Mini: closed weights.
General LLM: As of Oct 15, 2026, GPT-4O Mini leads GLM 5.3 in General LLM at #11 against #24.
Science: As of Oct 15, 2026, GLM 5.3 leads GPT-4O Mini in Science at #28 against #161.
GLM 5.3 or GPT-4O Mini?
As of Oct 15, 2026, GLM 5.3 leads GPT-4O Mini in 1 of 2 shared categories: Science.
GLM 5.3 or GPT-4O Mini for General LLM?
As of Oct 15, 2026, GPT-4O Mini leads GLM 5.3 in General LLM at #11 against #24.
GLM 5.3 or GPT-4O Mini for Science?
As of Oct 15, 2026, GLM 5.3 leads GPT-4O Mini in Science at #28 against #161.