Gemini 3.1 Pro Preview vs Mistral Medium 3.5 pricing
- For the Chatbot workload, Mistral Medium 3.5 costs 1.5× less than Gemini 3.1 Pro Preview.
- For the RAG workload, Mistral Medium 3.5 costs 1.4× less than Gemini 3.1 Pro Preview.
- For the Coding agent workload, Mistral Medium 3.5 costs 1.4× less than Gemini 3.1 Pro Preview.
Prices
| USD per 1M tokens | Gemini 3.1 Pro Preview | Mistral Medium 3.5 |
|---|---|---|
| Input | $2.00 | $1.50 |
| Output | $12.00 | $7.50 |
| Cache read | $0.20 | $0.15 |
| Cache write | Not published | Not published |
| Batch input | $1.00 | Not published |
| Batch output | $6.00 | Not published |
Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page
Mistral's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation
Monthly cost by workload
| Workload | Gemini 3.1 Pro Preview | Mistral Medium 3.5 |
|---|---|---|
| Chatbot1,000 in / 500 out tokens, 10,000 requests a day | $2,400/mo | $1,575/mo |
| RAG8,000 in / 500 out tokens, 5,000 requests a day | $3,300/mo | $2,363/mo |
| Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input | $1,560/mo | $1,080/mo |
Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.
Context and capabilities
| Gemini 3.1 Pro Preview | Mistral Medium 3.5 | |
|---|---|---|
| Context | 1,048,576 tokens | 262,144 tokens |
| Max output | 65,536 tokens | 262,144 tokens |
| Input | text, image, video, audio, pdf | text, image |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | Yes |
Questions
- What is the price difference between Gemini 3.1 Pro Preview and Mistral Medium 3.5?
- Gemini 3.1 Pro Preview: $2.00 per 1M input tokens and $12.00 per 1M output tokens. Mistral Medium 3.5: $1.50 per 1M input tokens and $7.50 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $2,400 per month for Gemini 3.1 Pro Preview and $1,575 for Mistral Medium 3.5.
- Which has the longer context window, Gemini 3.1 Pro Preview or Mistral Medium 3.5?
- Gemini 3.1 Pro Preview has the longer context window: up to 1,048,576 tokens, compared with 262,144 for Mistral Medium 3.5.
- Do Gemini 3.1 Pro Preview and Mistral Medium 3.5 have prompt caching and batch prices?
- Gemini 3.1 Pro Preview: cached input $0.20 per 1M tokens; batch $1.00 per 1M input tokens and $6.00 per 1M output tokens. Mistral Medium 3.5: cached input $0.15 per 1M tokens; no batch price published.