Mistral: Mistral Medium 3.5 vs Nano Banana 2 (Gemini 3.1 Flash Image): API Cost Comparison
Compare the API pricing, context windows, features, and real-world cost projections for Mistral: Mistral Medium 3.5 (Mistral AI) and Nano Banana 2 (Gemini 3.1 Flash Image) (Google). Use the interactive calculator below to compute your exact monthly cost based on your token usage and request volume.
Prices verified Jun 26, 2026
Interactive Cost Calculator
Fills in typical token counts for a workload type
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Showing costs for 2 models. Cheapest: Nano Banana 2 (Gemini 3.1 Flash Image) at $20.00/month.
| Alert | |||||||
|---|---|---|---|---|---|---|---|
BestNano Banana 2 (Gemini 3.1 Flash Image) | $20.00 | $0.002000 | $5.00 | $15.00 | 61.9% | Alerts coming soon | |
Mistral: Mistral Medium 3.5 | Mistral AI | $52.50 | $0.005250 | $15.00 | $37.50 | — | Alerts coming soon |
Monthly Cost Comparison
Price Comparison at a Glance
All prices are in USD per 1 million tokens ($/M tokens). Lower is cheaper.
| Pricing Type | Mistral: Mistral Medium 3.5 | Nano Banana 2 (Gemini 3.1 Flash Image) | Cheaper |
|---|---|---|---|
| Input (standard) | $1.50/M | $0.50/M | Nano Banana 2 (Gemini 3.1 Flash Image) |
| Output | $7.50/M | $3.00/M | Nano Banana 2 (Gemini 3.1 Flash Image) |
Prices last verified: 2026-05-06 – 2026-06-26
Cost Breakdown by Usage Volume
Estimated monthly costs at different request volumes, assuming 1,000 input tokens and 500 output tokens per request. Adjust in the calculator above for your specific use case.
| Volume | Mistral: Mistral Medium 3.5Monthly | Nano Banana 2 (Gemini 3.1 Flash Image)Monthly | Mistral: Mistral Medium 3.5Per request | Nano Banana 2 (Gemini 3.1 Flash Image)Per request |
|---|---|---|---|---|
| 1K requests/mo | $5.25 | $2.00 | $0.005250 | $0.002000 |
| 10K requests/mo | $52.50 | $20.00 | $0.005250 | $0.002000 |
| 100K requests/mo | $525.00 | $200.00 | $0.005250 | $0.002000 |
| 1M requests/mo | $5,250.00 | $2,000.00 | $0.005250 | $0.002000 |
Green values indicate the lower-cost option at each volume tier. Cost per request is calculated at 1,000 input + 500 output tokens using standard (non-batch, non-cached) pricing.
When to Choose Mistral: Mistral Medium 3.5
by Mistral AI
- General chatbot
Input / 1M tokens
$1.50/M
Output / 1M tokens
$7.50/M
Context window
262,144
Tier
mid
When to Choose Nano Banana 2 (Gemini 3.1 Flash Image)
by Google
- General chatbot
Input / 1M tokens
$0.50/M
Output / 1M tokens
$3.00/M
Context window
131,072
Tier
budget
Key Differences Beyond Price
Cost is only one factor in choosing an AI model. Context window size, rate limits, supported features, and latency all affect whether a model fits your use case.
| Capability | Mistral: Mistral Medium 3.5 | Nano Banana 2 (Gemini 3.1 Flash Image) |
|---|---|---|
| Context window | 262,144 tokens | 131,072 tokens |
| Max output tokens | 4,096 tokens | 32,768 tokens |
| Performance tier | Mid | Budget |
| Vision / image input | Yes | Yes |
| Function calling | Yes | No |
| JSON mode | Yes | Yes |
| Prompt caching | No | No |
| Batch API (50% discount) | No | No |
| Extended reasoning | Yes | Yes |
| Fine-tuning | No | No |
Frequently Asked Questions
Is Mistral: Mistral Medium 3.5 cheaper than Nano Banana 2 (Gemini 3.1 Flash Image)?
At standard usage (1,000 input tokens, 500 output tokens, 100,000 requests/month), Nano Banana 2 (Gemini 3.1 Flash Image) costs $200.00/month versus $525.00/month for Mistral: Mistral Medium 3.5 — a 62% saving. Your actual savings will vary based on your token profile; output-heavy workloads amplify differences in output pricing.
Which model has a larger context window, Mistral: Mistral Medium 3.5 or Nano Banana 2 (Gemini 3.1 Flash Image)?
Mistral: Mistral Medium 3.5 has a larger context window at 262,144 tokens, compared to 131,072 tokens for Nano Banana 2 (Gemini 3.1 Flash Image). A larger context window is important for processing long documents, multi-turn conversations, or large codebases without truncation.
Do Mistral: Mistral Medium 3.5 and Nano Banana 2 (Gemini 3.1 Flash Image) support the Batch API?
Neither Mistral: Mistral Medium 3.5 nor Nano Banana 2 (Gemini 3.1 Flash Image) currently supports a batch API with discounted pricing. For batch-eligible alternatives, consider models from OpenAI, Anthropic, or Google that include batch API support.
Which model offers better prompt caching?
Neither Mistral: Mistral Medium 3.5 nor Nano Banana 2 (Gemini 3.1 Flash Image) currently supports prompt caching. For prompt-caching capable alternatives, consider Claude models from Anthropic or GPT-4o from OpenAI.
What are the best use cases for Mistral: Mistral Medium 3.5 vs Nano Banana 2 (Gemini 3.1 Flash Image)?
Both models are well-suited for General chatbot. Mistral: Mistral Medium 3.5 is particularly strong for overlapping tasks. Nano Banana 2 (Gemini 3.1 Flash Image) is favored for similar workflows. At the same quality level, the lower-cost model is usually preferable; use this page's calculator to compare total monthly spend at your volume.
What is the cost per request for Mistral: Mistral Medium 3.5 vs Nano Banana 2 (Gemini 3.1 Flash Image)?
At 1,000 input tokens and 500 output tokens per request — a typical conversational workload — Mistral: Mistral Medium 3.5 costs $0.005250 per request and Nano Banana 2 (Gemini 3.1 Flash Image) costs $0.002000 per request. At 100,000 requests/month, that translates to $525.00 and $200.00 respectively. Use the interactive calculator to adjust these parameters for your actual workload.
Mistral: Mistral Medium 3.5 vs Nano Banana 2 (Gemini 3.1 Flash Image): Summary
When comparing Mistral: Mistral Medium 3.5 and Nano Banana 2 (Gemini 3.1 Flash Image) for API cost, the right choice depends on your workload's token profile, required features, and tolerance for latency. Nano Banana 2 (Gemini 3.1 Flash Image) offers lower total cost at standard usage volumes (1,000 input + 500 output tokens per request at 100,000 requests/month) at $200.00/month, compared to $525.00/month for Mistral: Mistral Medium 3.5.
Both models are priced in USD per million tokens, the standard unit across all major AI API providers. Mistral: Mistral Medium 3.5 charges $1.50/M for input tokens and $7.50/M for output tokens. Nano Banana 2 (Gemini 3.1 Flash Image) charges $0.50/M input and $3.00/M output. If your workload is output-heavy (more tokens generated than consumed as input), the model with the lower output price compounds cost savings significantly at scale.
Context window capacity differs between the two: Mistral: Mistral Medium 3.5 supports up to 262,144 tokens in a single request, versus 131,072 tokens for Nano Banana 2 (Gemini 3.1 Flash Image). A larger context window is essential for document summarization, large codebase analysis, and multi-document retrieval-augmented generation (RAG) applications.
Use the interactive calculator at the top of this page to enter your actual token usage and monthly request volume for a precise cost comparison tailored to your workload. Adjust for batch API discounts and prompt caching to find the most cost-effective option for your specific deployment.
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Relevant Use Cases
See cost recommendations for workloads where Mistral: Mistral Medium 3.5 or Nano Banana 2 (Gemini 3.1 Flash Image) is recommended.