Codestral 25.01 vs GLM-4.5
Mistral Codestral 25.01 | Z.ai GLM-4.5 | |
|---|---|---|
| Overview | ||
| Company | Mistral | Z.ai |
| Release date | Jan 13 2025 | Jul 28 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 355B |
Context window | 256k | 128k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 8% |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | — | 64.2% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 79.1% |
| Timeline | ||
| Release gap | Codestral 25.01 shipped 196 days before GLM-4.5 | |
Which is better: Codestral 25.01 or GLM-4.5?
Codestral 25.01 and GLM-4.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral 25.01 shipped 196 days before GLM-4.5, so benchmark comparisons should account for the intervening progress.
Context windows are 256k (Codestral 25.01) vs 128k (GLM-4.5). Codestral 25.01 is proprietary, while GLM-4.5 is open weight.
Direct benchmark comparisons are unavailable — Codestral 25.01 and GLM-4.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
Codestral 25.01 was released by Mistral on Jan 13 2025.
GLM-4.5 was released by Z.ai on Jul 28 2025.
Codestral 25.01 has a 256k context window; GLM-4.5 has 128k.
Codestral 25.01 is a proprietary model released by Mistral. GLM-4.5 is an open weight model released by Z.ai.