GLM-5.1 vs Mistral Medium 3.5
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Z.ai (Zhipu) · Apr 2026
The April 2026 GLM refresh — the first open-weights model to take #1 on SWE-bench Pro, edging out Claude Opus 4.6.
Mistral AI · Mar 2026
Europe's strongest model line: frontier-adjacent quality at $0.40/$2 with EU data residency and on-prem options.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Mistral Medium 3.5 is about 2.7x cheaper per blended million tokens (3:1 input:output mix). GLM-5.1 also takes 200K of context versus 131K for Mistral Medium 3.5. And GLM-5.1 is open-weights (MIT), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
Specs & pricing
| GLM-5.1 | Mistral Medium 3.5 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $1.4 | $0.4 |
| Output price / 1M | $4.4 | $2 |
| Context window | 200K | 131K |
| Max output | 128K | — |
| Open weights | yes (MIT) | no |
| Reasoning model | yes | no |
| Multimodal input | text | text, image |
| Knowledge cutoff | Feb 2026 | Dec 2025 |
| Released | Apr 2026 | Mar 2026 |
| Example monthly cost* | $20.60 | $7.00 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, GLM-5.1 or Mistral Medium 3.5?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Mistral Medium 3.5 is about 2.7x cheaper per blended million tokens (3:1 input:output mix). GLM-5.1 also takes 200K of context versus 131K for Mistral Medium 3.5. And GLM-5.1 is open-weights (MIT), so it can be self-hosted — a structural advantage if data control or vendor independence matters.
- Which is cheaper, GLM-5.1 or Mistral Medium 3.5?
- GLM-5.1 costs $1.4/$4.4 per million input/output tokens, while Mistral Medium 3.5 costs $0.4/$2. For a typical workload of 10M input and 1.5M output tokens per month, that's $20.60 versus $7.00.
- Which model is better for coding, GLM-5.1 or Mistral Medium 3.5?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.