Gemini 3 Pro (Thinking) API
gemini-3-pro-preview-thinkingGemini 3 Pro with extended thinking capability for complex reasoning tasks.
API Documentation
View complete API reference with all parameters and examples.
Full API Documentation
View complete API reference with streaming, thinking, and more.
Pricing
Billing: Cost = (input_tokens * input_price + output_tokens * output_price) / 1,000,000
Extended Thinking
Step-by-step reasoning
Advanced Reasoning
Complex problem solving
Deep Analysis
Thorough examination
Latest Features
Most recent capabilities
About Gemini 3 Pro (Thinking)
Gemini 3 Pro (Thinking) is a Large Language Model API provided by Google. Gemini 3 Pro with extended thinking capability for complex reasoning tasks. Through APIMODELS platform, you can access this model via a unified API with transparent pay-as-you-go pricing. Current pricing: Input: $1.6, Output: $9.6 per 1M tokens.
Key Features
- Extended Thinking -- Step-by-step reasoning
- Advanced Reasoning -- Complex problem solving
- Deep Analysis -- Thorough examination
- Latest Features -- Most recent capabilities
Use Cases
Chatbot & Customer Support
Build intelligent conversational systems to automatically answer user queries and improve service efficiency.
Content Generation
Automatically write articles, emails, ad copy, and other text content to boost productivity.
Code Assistant
Assist with code writing, debugging, and code review to accelerate software development.
Data Analysis
Understand and analyze unstructured data, extract key insights, and generate summary reports.
Why APIMODELS
- Unified API -- One API key to access all models, no need to register on multiple platforms
- Transparent Pricing -- Pay-as-you-go with per-call pricing published on every model page, ideal for indie developers and startups
- Instant Access -- Start using immediately after signup, supports Stripe and Alipay payments
- Full Documentation -- Detailed API docs with code examples in cURL, Python, and Node.js
Frequently Asked Questions
How much does Gemini 3 Pro (Thinking) cost?
Gemini 3 Pro (Thinking) is available through APIMODELS at: Input: $1.6, Output: $9.6 per 1M tokens. Billing is pay-as-you-go — you only pay for what you generate.
How to use Gemini 3 Pro (Thinking) API?
Sign up at APIMODELS, get your API key, and call our unified API endpoint. We provide detailed API documentation with code examples in cURL, Python, and Node.js.
What is the difference between APIMODELS and the official Google API?
APIMODELS offers the same Gemini 3 Pro (Thinking) model through our aggregation platform. We provide a unified API interface so you do not need separate accounts for each provider - one API key to access all models.
How does Gemini 3 Pro (Thinking) compare to other Large Language Model models?
On APIMODELS, Gemini 3 Pro (Thinking) runs alongside 60+ models on one API key and one balance, so choosing is about fit, not lock-in. It supports Extended Thinking, Advanced Reasoning, Deep Analysis, and you can weigh it on price and capability against other Large Language Model models, then switch by changing a single model-name string — no new account or integration. Browse every Large Language Model option with live pricing at apimodels.app/models.
What can Gemini 3 Pro (Thinking) do?
Gemini 3 Pro (Thinking) supports: Extended Thinking, Advanced Reasoning, Deep Analysis. See the APIMODELS docs for full parameters and call examples.
Can I access the Gemini 3 Pro (Thinking) API from anywhere (incl. China)?
Yes. APIMODELS exposes Gemini 3 Pro (Thinking) through a single unified API and one key — no separate provider accounts, and no need to handle each provider's regional network access yourself.
What payment methods are supported?
We support Stripe (Visa, Mastercard, and other international cards) and Alipay. Credits are available instantly after payment.