Gemini 3.1 Flash Image
gemini-3.1-flash-image
These are Mengbi Router customer prices in USD per 1M tokens. Provider: Google; Context: —; Input price: $0.30; Output price: $36.
- Vision
AI models and pricing
Model specs
- Provider
- Context
- —
- Max output
- —
- Released
- Feb 2026
- Input modalities
- Text, Image
- Output modalities
- Image
- Tool calling
- Not supported
- Structured output
- Not supported
- Currency
- USD
- Model ID
- gemini-3.1-flash-image
Model pricing and access details
USD / 1M tokens| Model | Official | Mengbi | Discount |
|---|---|---|---|
| Input price | $0.50 | $0.30 | 40% OFF |
| Output price | $60 | $36 | 40% OFF |
| Cache read price | — | — | — |
Estimated cost for common usage
Estimates based on current Mengbi Router prices, so you can plan real request costs.
| Token volume | Input | Output | Input + output total |
|---|---|---|---|
| 10K tokens | $0.003 | $0.36 | $0.363 |
| 100K tokens | $0.03 | $3.6 | $3.63 |
| 1M tokens | $0.30 | $36 | $36.3 |
| 10M tokens | $3 | $360 | $363 |
Estimates use the current prices above and exclude cache-hit discounts. Your invoice is metered by the actual token usage of each request.
API protocol compatibility
Keep your SDK. Change one line.
Use the protocol your stack already speaks.
const client = new OpenAI({
apiKey: process.env.MENGBI_ROUTER_KEY,
baseURL: process.env.MENGBI_ROUTER_BASE_URL,
})
const response = await client.chat.completions.create({
model: 'gemini-3.1-flash-image',
messages,
})Frequently asked questions
Common questions about the Gemini 3.1 Flash Image API: pricing, capabilities, and integration.
How much does the Gemini 3.1 Flash Image API cost?
Through Mengbi Router, Gemini 3.1 Flash Image costs $0.30 per 1M input tokens and $36 per 1M output tokens.
Does Gemini 3.1 Flash Image support tool calling and structured output?
Based on the current snapshot, Gemini 3.1 Flash Image does not support tool calling yet.
What input and output formats does Gemini 3.1 Flash Image support?
It accepts Text and Image and returns Image.
How do I call Gemini 3.1 Flash Image with the OpenAI SDK?
Keep your OpenAI SDK, point the base URL at Mengbi Router, use your Mengbi API key, and set model to gemini-3.1-flash-image in the request.
Which company provides Gemini 3.1 Flash Image?
Gemini 3.1 Flash Image is provided by Google and available through Mengbi Router with one API key and pay-as-you-go billing. The model was first released in Feb 2026.