Gemini 3.1 Pro vs GLM-5.2 (on Mistral)
Both are Flagship-tier models, from Google and Mistral AI respectively. GLM-5.2 (on Mistral) is the cheaper choice overall at a 4:1 input:output ratio.
Which is cheaper
- Input price: GLM-5.2 (on Mistral) is cheaper ($1.40 vs $2.00).
- Output price: GLM-5.2 (on Mistral) is cheaper ($4.40 vs $12.00).
- Blended, 4:1 input:output ratio: GLM-5.2 (on Mistral) is 50% cheaper ($2.00 vs $4.00 per weighted 1M tokens).
Side by side
| Spec | Gemini 3.1 Pro | GLM-5.2 (on Mistral) |
|---|---|---|
| Provider | Mistral AI | |
| Tier | Flagship | Flagship |
| Context window | 1M | 1M |
| Max output | 66K | 128K |
| Input $/1M | $2.00 | $1.40 |
| Output $/1M | $12.00 | $4.40 |
| Cache read $/1M | $0.20 | $0.14 |
| Modalities | text, image | text |
Gemini 3.1 Pro. Listed as gemini-3.1-pro-preview. Standard tier for prompts up to 200K tokens; above that, $4 input / $18 output and $0.40 cache read per 1M. Cached context is also billed for storage at $4.50 per 1M tokens per hour.
GLM-5.2 (on Mistral). A Z.ai model resold by Mistral and served on Mistral's EU infrastructure, listed as zai-glm-5-2 on Mistral's own pricing page. Cache read is $0.14 per 1M.
Sources
Gemini 3.1 Pro — verified August 29, 2026
GLM-5.2 (on Mistral) — verified August 29, 2026
Full Gemini 3.1 Pro pricing page → · Full GLM-5.2 (on Mistral) pricing page →