gemini-2.0-flash-thinking-exp-01-21

This documentation is valid for the following list of our models:

• google/gemini-2.0-flash-thinking-exp-01-21

• gemini-2.0-flash-thinking-exp-01-21

Model Overview

An advanced AI reasoning model developed by Google DeepMind, designed to tackle complex multimodal tasks including programming, mathematics, and scientific reasoning. This model enhances the ability to logically reason through intricate challenges while articulating its thought process, making it suitable for a variety of applications.

1 Million Token Context Window: Significantly expands the model's ability to process long-form text and complex queries.

Native Code Execution Support: Allows the model to write and execute code as part of its response, improving its utility for programming tasks.

Enhanced Reasoning Mechanism: Breaks down prompts into smaller tasks for better analysis and synthesis of responses.

Improved Performance Metrics: Achieves high scores on benchmarks such as AIME2024 (73.3%) and GPQA Diamond (74.2%).

Multimodal Input Support: Capable of processing both text and image inputs, enhancing its versatility in handling diverse data types.

How to Make a Call

1

Setup You Can’t Skip

▪️ Create an Account: Visit the AI/ML API website and create an account (if you don’t have one yet). ▪️ Generate an API Key: After logging in, navigate to your account dashboard and generate your API key. Ensure that key is enabled on UI.

2

Copy the code example

At the bottom of this page, you'll find a code example that shows how to structure the request. Choose the code snippet in your preferred programming language and copy it into your development environment.

3

Modify the code example

▪️ Replace <YOUR_AIMLAPI_KEY> with your actual AI/ML API key from your account. ▪️ Insert your question or request into the content field—this is what the model will respond to.

4

^_(Optional) Adjust other optional parameters if needed

Only model and messages are required parameters for this model (and we’ve already filled them in for you in the example), but you can include optional parameters if needed to adjust the model’s behavior. Below, you can find the corresponding API schema, which lists all available parameters along with notes on how to use them.

5

Run your modified code

Run your modified code in your development environment. Response time depends on various factors, but for simple prompts it rarely exceeds a few seconds.

If you need a more detailed walkthrough for setting up your development environment and making a request step by step — feel free to use our Quickstart guide.

API Schema

Generate a conversational response using a language model.

post

Creates a chat completion using a language model, allowing interactive conversation by predicting the next response based on the given chat history. This is useful for AI-driven dialogue systems and virtual assistants.

Authorizations

Body

modelundefined · enumrequiredAvailable options:

frequency_penaltynumber | nullableoptional

logit_biasobject | nullableoptional

max_tokensnumber · min: 1optionalDefault: 512

presence_penaltynumber | nullableoptional

messagesone of[]required

streambooleanoptionalDefault: false

top_pnumber · min: 0.1 · max: 1optional

temperaturenumber · max: 2optional

stopany ofoptional

toolsobject[]optional

tool_choiceany ofoptional

Responses

post

HTTPcURLJavaScriptPython

POST /v1/chat/completions HTTP/1.1
Host: api.aimlapi.com
Authorization: Bearer <YOUR_AIMLAPI_KEY>
Content-Type: application/json
Accept: */*
Content-Length: 416

{
  "model": "google/gemini-2.0-flash-thinking-exp-01-21",
  "frequency_penalty": 1,
  "logit_bias": {
    "ANY_ADDITIONAL_PROPERTY": 1
  },
  "max_tokens": 1,
  "presence_penalty": 1,
  "messages": [
    {
      "role": "system",
      "content": "text",
      "name": "text"
    }
  ],
  "stream": true,
  "top_p": 1,
  "temperature": 1,
  "stop": "text",
  "tools": [
    {
      "type": "function",
      "function": {
        "description": "text",
        "name": "text",
        "parameters": {
          "ANY_ADDITIONAL_PROPERTY": null
        }
      }
    }
  ],
  "tool_choice": "none"
}

201Success

No Content

Code Example (Python)

import requests

response = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={
        "Content-Type":"application/json", 

        # Insert your AIML API Key instead of <YOUR_AIMLAPI_KEY>:
        "Authorization":"Bearer <YOUR_AIMLAPI_KEY>",
        "Content-Type":"application/json"
    },
    json={
        "model":"google/gemini-2.0-flash-thinking-exp-01-21",
        "messages":[
            {
                "role":"user",

                # Insert your question for the model here, instead of Hello:
                "content":"Hello"
            }
        ]
    }
)

data = response.json()
print(data)

Response

{'id': '2025-04-10|02:39:04.180154-07|9.22.37.143|-837033209', 'object': 'chat.completion', 'choices': [{'index': 0, 'finish_reason': 'stop', 'logprobs': None, 'message': {'role': 'assistant', 'content': 'Hello there! 👋 How can I help you today? 😊'}}], 'created': 1744277944, 'model': 'google/gemini-2.0-flash-thinking-exp-01-21', 'usage': {'prompt_tokens': 0, 'completion_tokens': 10, 'total_tokens': 10}}