--- title: Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) | Text Generation | ModelsLab description: Build with Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) API by Google. Text generation, chat, code, and reasoning. Pay-per-use. Free tier. url: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/google/google-gemini-3.1-flash-image-preview/api.md canonical: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/google/google-gemini-3.1-flash-image-preview/api.md type: product component: Playground/LLM/Index generated_at: 2026-05-13T10:34:20.772209Z --- Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) --- [LLMs.txt](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/google-gemini-3.1-flash-image-preview/llms.txt) [.md](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/google/google-gemini-3.1-flash-image-preview.md) google-gemini-3.1-flash-image-preview google Closed Source Model $1.750000 / call Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) --- Choose a prompt below to get started or type your own message Explain quantum computing in simple terms Write a Python function to sort a list Create a marketing email for a SaaS product Compare REST vs GraphQL APIs Send ### Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) google google-gemini-3.1-flash-image-preview Copy model ID PricingInput $0.50 / 1M tokens Output $3.00 / 1M tokens API EndpointsOpenAI Compatible `https://modelslab.com/api/v7/llm/chat/completions`Endpoint Anthropic Compatible `https://modelslab.com/api/v7/llm/v1/messages`Messages `https://modelslab.com/api/v7/llm/v1/messages/count_tokens`Count Tokens `https://modelslab.com/api/v7/llm/v1/models`Models Use with Claude Code cURL Example ParametersSystem MessageYou are a helpful AI assistant specialized in providing accurate and detailed responses. Temperature0.7 Max Tokens1000 Top P0.9 Frequency Penalty0 Presence Penalty0 Model Info Support Related Models --- Discover similar models you might be interested in [View all LLM Models](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models?feature=llmaster) [OG](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-4o-audio-preview)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [OpenAI: GPT-4o Audio Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-4o-audio-preview) [Q7](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-Qwen2.5-7B)[Together AI](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai) [Qwen2.5 7B Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-Qwen2.5-7B) [OG](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-audio-mini)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [OpenAI: GPT Audio Mini Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-audio-mini) [Q3](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-Qwen3-30B-A3B-Base)[Together AI](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai) [Qwen3 30B A3b Base Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-Qwen3-30B-A3B-Base) [OG](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-audio)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [OpenAI: GPT Audio Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/openai-gpt-audio) [W2](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/microsoft-wizardlm-2-8x22b)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [WizardLM-2 8x22B Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/microsoft-wizardlm-2-8x22b) [MP](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-pixtral-large-2411)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Mistral: Pixtral Large 2411 Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-pixtral-large-2411) [MD](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-devstral-medium)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Mistral: Devstral Medium Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-devstral-medium) [MM](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-ministral-14b-2512)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Mistral: Ministral 3 14B 2512 Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-ministral-14b-2512) [BS](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/bytedance-seed-seed-1.6-flash)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [ByteDance Seed: Seed 1.6 Flash Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/bytedance-seed-seed-1.6-flash) [Q4](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-Qwen3-4B-Base)[Together AI](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai) [Qwen3 4B Base Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-Qwen3-4B-Base) [AA](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/arcee-ai-trinity-large-thinking)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Arcee AI: Trinity Large Thinking Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/arcee-ai-trinity-large-thinking) [ML](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-mistral-large)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Mistral Large Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/mistralai-mistral-large) [L4](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/meta-llama-Llama-4-Scout-17B-16E)[Together AI](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai) [Llama 4 Scout (17Bx16E) Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/meta-llama-Llama-4-Scout-17B-16E) [GG](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/google-gemini-3.1-flash-lite-preview)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Google: Gemini 3.1 Flash Lite Preview Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/google-gemini-3.1-flash-lite-preview) [ZG](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/z-ai-glm-4.5v)[Open Router](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [Z.ai: GLM 4.5V Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router/z-ai-glm-4.5v) [DV](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/deepseek/deepseek-ai-DeepSeek-V3)[ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/deepseek) [DeepSeek V3-0324 Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/deepseek/deepseek-ai-DeepSeek-V3) [QQ](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-QwQ-32B)[Together AI](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai) [Qwen QwQ-32B Closed Source Model](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/together_ai/Qwen-QwQ-32B) About Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) --- Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines... ### Technical Specifications Model IDgoogle-gemini-3.1-flash-image-previewCategoryLLM ModelsTaskText GenerationPrice$1.750000 per million tokensAddedFebruary 27, 2026 ### Key Features - Chat completion and multi-turn conversation API - Streaming response with token-by-token output - Function calling and tool use support - System prompts and role-based messaging - JSON mode and structured output ### Quick Start Integrate Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) into your application with a single API call. Get your API key from the [pricing page](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) to get started. PythonJavaScriptcURLPHP ``` import requests import json url = "https://modelslab.com/api/v7/llm/chat/completions" headers = { "Content-Type": "application/json" } data = { "model_id": "google-gemini-3.1-flash-image-preview", "messages": [ { "role": "user", "content": "Hello!" } ], "max_tokens": 1000, "key": "YOUR_API_KEY" } try: response = requests.post(url, headers=headers, json=data) response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX) result = response.json() print("API Response:") print(json.dumps(result, indent=2)) except requests.exceptions.HTTPError as http_err: print(f"HTTP error occurred: {http_err} - {response.text}") except Exception as err: print(f"Other error occurred: {err}") ``` View the [full API documentation](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/google/google-gemini-3.1-flash-image-preview/api) for SDKs, code examples in Python, JavaScript, and more. ### Pricing Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) API costs $1.750000 per million tokens. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) ### Use Cases - AI chatbots and virtual assistants - Code generation and developer tools - Content writing and copywriting automation - Data analysis, summarization, and extraction [Learn more about Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/google-nano-banana-2-gemini-31-flash-image-preview) [Browse LLM Models](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models?feature=llmaster) [More from Google](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/open_router) [View Pricing](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) FAQ --- ### What is Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview)? Gemini 3.1 Flash Image Preview, a.k.a. "Nano Banana 2," is Google’s latest state of the art image generation and editing model, delivering Pro-level visual quality at Flash speed. It combines... ### How do I use the Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) API? You can integrate Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "google-gemini-3.1-flash-image-preview" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) cost? Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) costs $1.750000 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started. ### What is the Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) model ID? The model ID for Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) is "google-gemini-3.1-flash-image-preview". Use this ID in your API requests to specify this model. ### Does Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) have a free tier? Yes, ModelsLab offers a free tier that lets you try Google: Nano Banana 2 (Gemini 3.1 Flash Image Preview) and other AI models. Sign up to get free API credits and start building immediately. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-05-13*