Model detail

`google/gemini-3.1-flash-image`

Nano Banana 2 image generation and editing through /v1/images/generations. Image endpoint uses per-image billing, not chat token estimates.

Playground Endpoints All Models

Provider

Google

Context

131K

tokens

Max output

33K

tokens

Default endpoint

google-vertex/us-central1

Input price

$0.5000

per 1M tokens

Output price

$60.0000

per 1M tokens

Energy estimate

75 Wh

per 1M tokens

Fallback models

OpenRouter-compatible metadata

Model ID: google/gemini-3.1-flash-image
Canonical slug: google/gemini-3.1-flash-image
Owned by: google
API: zevrouter
Input modalities: text, image
Output modalities: text, image
Tokenizer: Other
Instruct type: chat

Pricing JSON

{
  "prompt": "0.0000005",
  "completion": "0.00006",
  "request": "0",
  "image": "0",
  "audio": "0",
  "web_search": "0",
  "internal_reasoning": "0"
}

Parameters

Supported parameters

11 parameters

temperaturetop_ptop_kmax_tokensmax_completion_tokenstoolsstreamstream_optionsthinking_levelthinking_budgetreasoning_effort

Routing

Provider endpoints

Inspect Endpoints

Endpoint	Region	Status	Latency	Carbon intensity	CFE
`google-vertex/us-west1` Google Vertex AI Oregon (us-west1)	us-west1	available	155 ms	230 gCO2e/kWh	68%
`google-vertex/us-west4` Google Vertex AI Las Vegas (us-west4)	us-west4	available	145 ms	330 gCO2e/kWh	60%
`google-vertex/us-central1` Google Vertex AI Iowa (us-central1)	us-central1	default	95 ms	390 gCO2e/kWh	54%
`google-vertex/us-east1` Google Vertex AI South Carolina (us-east1)	us-east1	available	150 ms	360 gCO2e/kWh	58%
`google-vertex/us-east4` Google Vertex AI N. Virginia (us-east4)	us-east4	available	155 ms	350 gCO2e/kWh	61%
`google-vertex/us-east5` Google Vertex AI Columbus (us-east5)	us-east5	available	120 ms	330 gCO2e/kWh	62%
`google-vertex/us-south1` Google Vertex AI Dallas (us-south1)	us-south1	available	145 ms	420 gCO2e/kWh	48%
`google-vertex/europe-west1` Google Vertex AI Belgium (europe-west1)	europe-west1	available	210 ms	190 gCO2e/kWh	78%
`google-vertex/europe-west4` Google Vertex AI Netherlands (europe-west4)	europe-west4	available	225 ms	240 gCO2e/kWh	70%
`google-vertex/europe-north1` Google Vertex AI Finland (europe-north1)	europe-north1	available	255 ms	70 gCO2e/kWh	92%
`google-vertex/europe-central2` Google Vertex AI Warsaw (europe-central2)	europe-central2	available	255 ms	620 gCO2e/kWh	35%
`google-vertex/europe-west8` Google Vertex AI Milan (europe-west8)	europe-west8	available	250 ms	360 gCO2e/kWh	60%
`google-vertex/europe-southwest1` Google Vertex AI Madrid (europe-southwest1)	europe-southwest1	available	255 ms	170 gCO2e/kWh	82%
`google-vertex/europe-west9` Google Vertex AI Paris (europe-west9)	europe-west9	available	240 ms	55 gCO2e/kWh	92%

Fallback chain

none

{
  "model": "google/gemini-3.1-flash-image",
  "models": ["google/gemini-3.1-flash-image"],
  "messages": [{ "role": "user", "content": "Hello" }]
}

API references

curl "https://router.zev.city/api/v1/models"

curl "https://router.zev.city/api/v1/models/google/gemini-3.1-flash-image/endpoints"