Google
Gemini 3.1 Flash Image Preview
Gemini 3.1 Flash Image Preview is a multimodal model by Google with support for image generation, vision, function calling, web search, and structured output. It supports a 66K token context window with up to 33K tokens of output. Priced at $0.5 per million input tokens and $3 per million output tokens. Access Gemini 3.1 Flash Image Preview through Inworld Router with OpenAI SDK compatibility, built-in failover, and intelligent routing across providers.
→Function CallingWeb SearchResponse SchemaVisionresponseFormatCapability
Step 1 — Create Router
curl --location 'https://api.inworld.ai/router/v1/routers' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
"name": "compare-frontier-models",
"defaultRoute": {
"route_id": "default",
"variants": [
{
"variant": {
"variant_id": "google-ai-studio/gemini-3.1-flash-image-preview-a",
"model_id": "google-ai-studio/gemini-3.1-flash-image-preview"
},
"weight": 33
},
{
"variant": {
"variant_id": "google/gemini-2.5-flash-b",
"model_id": "google/gemini-2.5-flash"
},
"weight": 33
},
{
"variant": {
"variant_id": "google-ai-studio/gemini-2.5-flash-image-c",
"model_id": "google-ai-studio/gemini-2.5-flash-image"
},
"weight": 34
}
]
}
}'Step 2 — Chat Completion
curl --location 'https://api.inworld.ai/v1/chat/completions' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
"model": "inworld/compare-frontier-models",
"messages": [{"role": "user", "content": "Hello!"}]
}'Gemini 3.1 Flash Image Preview pricing and providers
Access Gemini 3.1 Flash Image Preview through Google AI Studio via Inworld Router or Realtime API. By using the AI provider(s) below you acknowledge you reviewed and agree to their terms listed in the Legal section under the AI provider's name.
| Capabilities | Input modalities | Output modalities | |||||
|---|---|---|---|---|---|---|---|
 Google AI Studio | 65.5K | 32.8K | $0.50 | $3.00 | +2 |
Other Google models available through Inworld
Compare Gemini 3.1 Flash Image Preview with other Google models available through Inworld Router or Realtime API.
| Capabilities | Input modalities | Output modalities | Inference provider | |||||
|---|---|---|---|---|---|---|---|---|
| Gemini 2.5 Flash | 1M | 65.5K | $0.30 | $2.50 | +5 | |||
| Gemini 2.5 Flash Image | 32.8K | 32.8K | $0.30 | $2.50 | ||||
| Gemini 2.5 Flash Lite | 1M | 65.5K | $0.10 | $0.40 | +5 | |||
| Gemini 2.5 Flash Lite Preview 09 2025 | 1M | 65.5K | $0.10 | $0.40 | +5 | |||
| Gemini 2.5 PRO | 1M | 65.5K | $1.25 | $10.00 | +5 | |||
| Gemini 3 Flash Preview | 1M | 65.5K | $0.50 | $3.00 | +5 | |||
| Gemini 3.1 Flash Lite | 1M | 65.5K | $0.25 | $1.50 | +5 | |||
| Gemini 3.1 PRO Preview | 1M | 65.5K | $2.00 | $12.00 | +5 | |||
| Gemini 3.1 PRO Preview Customtools | 1M | 65.5K | $2.00 | $12.00 | +5 | |||
| Gemini 3.5 Flash | 1M | 65.5K | $1.50 | $9.00 | +5 | |||
| Gemma 4 26b A4b It Maas | 128K | — | $0.15 | $0.60 | +2 | |||
| Google/gemma 3 12b It | 131.1K | 131.1K | $0.05 | $0.15 | +1 | |||
| Google/gemma 3 27b It | 131.1K | 131.1K | $0.08 | $0.16 | +1 | |||
| Google/gemma 3 4b It | 131.1K | 131.1K | $0.05 | $0.10 | ||||
| Google/gemma 4 26B A4B It | 262.1K | — | $0.07 | $0.34 | +3 | |||
| Google/gemma 4 31B It | 262.1K | — | $0.13 | $0.38 | +3 | |||
| Models/gemma 4 26b A4b It | 262.1K | — | $0.07 | $0.34 | +2 | |||
| Models/gemma 4 31b It | 262.1K | — | $0.13 | $0.38 | +2 |
Start building with Gemini 3.1 Flash Image Preview
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