GLM-5 vs o4-mini
GLM-5 OPEN WEIGHTS · Z.ai (Zhipu AI), released 2026-02-11
o4-mini · OpenAI, released 2025-04-16
“Epoch AI, 'AI Benchmarking Hub'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/benchmarks' [online resource].” · epoch.ai/benchmarks · Licensed CC BY 4.0 · data last verified 2026-09-09 · Methodology · Data Sources
o4-mini leads on more of the 6 benchmarks where both are measured — GLM-5 on 2, o4-mini on 4. The remaining 3 of 9 tracked benchmarks cannot be compared: 3 have a result for only one of the two models, 0 for neither. Nothing on this page is estimated to fill those in.
Head-to-head
Measured on 6 of 9 tracked benchmarks for both models — GLM-5 leads on 2, o4-mini leads on 4.
| Benchmark | GLM-5 | o4-mini | Leads |
|---|---|---|---|
| Epoch Capabilities Index (ECI) | 145.9 | 145.7 | GLM-5 |
| SWE-bench Verified | 0.721 | Not measured | Comparison unavailable — o4-mini has no published result |
| GPQA Diamond | 0.878 | 0.796 (high) | GLM-5 |
| MATH Level 5 | Not measured | 0.978 (high) | Comparison unavailable — GLM-5 has no published result |
| OTIS Mock AIME 2024-2025 | 0.800 | 0.817 (high) | o4-mini |
| FrontierMath | 0.164 | 0.248 (high) | o4-mini |
| FrontierMath Tier 4 | 0.021 | 0.062 (high) | o4-mini |
| SimpleQA Verified | Not measured | 0.196 (low) | Comparison unavailable — GLM-5 has no published result |
| Chess Puzzles | 0.100 | 0.260 (high) | o4-mini |
What remains uncertain
- GLM-5 has no published result on MATH Level 5, SimpleQA Verified.
- o4-mini has no published result on SWE-bench Verified.
A missing result means Xentir has not found one published by the source it cites, not that the model performs badly. See Data Sources.
Reference price
| Per 1M tokens | GLM-5 | o4-mini |
|---|---|---|
| Output | — | $4.40 |
List price as published by the vendor. Xentir does not verify negotiated or enterprise rates, and price is not a measure of capability — see Data Sources.