> ## Documentation Index > Fetch the complete documentation index at: https://docs.gptproto.com/llms.txt > Use this file to discover all available pages before exploring further. # Gemini-2.5-Flash-Nothinking - Text To Text - openai > Direct text to text by gemini 2.5 flash nothinking. High-speed, reliable AI for all your everyday conversational needs. ## Authentication 1. Sign up for a GPTProto account at [https://gptproto.com](https://gptproto.com) 2. Navigate to the API Keys section in your dashboard 3. Generate a new API key (sk-xxxxx) 4. Copy and securely store your API key For authentication details, please refer to the [Authentication](https://docs.gptproto.com/authentication) section. ## Initiate Request ```bash cURL theme={null} curl --location 'https://gptproto.com/v1/chat/completions' \ --header 'Authorization: GPTPROTO_API_KEY' \ --header 'Content-Type: application/json' \ --data '{ "model": "gemini-2.5-flash-nothinking", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "who are you?" } ] } ] }' ``` ```javascript JavaScript theme={null} const axios = require('axios'); let data = JSON.stringify({ "model": "gemini-2.5-flash-nothinking", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "who are you?" } ] } ] }); let config = { method: 'post', maxBodyLength: Infinity, url: 'https://gptproto.com/v1/chat/completions', headers: { 'Authorization': 'GPTPROTO_API_KEY', 'Content-Type': 'application/json' }, data : data }; axios.request(config) .then((response) => { console.log(JSON.stringify(response.data)); }) .catch((error) => { console.log(error); }); ``` ```python Python theme={null} import requests import json url = "https://gptproto.com/v1/chat/completions" payload = json.dumps({ "model": "gemini-2.5-flash-nothinking", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "who are you?" } ] } ] }) headers = { 'Authorization': 'GPTPROTO_API_KEY', 'Content-Type': 'application/json' } response = requests.request("POST", url, headers=headers, data=payload) print(response.text) ``` ```go Go theme={null} package main import ( "fmt" "strings" "net/http" "io" ) func main() { url := "https://gptproto.com/v1/chat/completions" method := "POST" payload := strings.NewReader(`{ "model": "gemini-2.5-flash-nothinking", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "who are you?" } ] } ] }`) client := &http.Client { } req, err := http.NewRequest(method, url, payload) if err != nil { fmt.Println(err) return } req.Header.Add("Authorization", "GPTPROTO_API_KEY") req.Header.Add("Content-Type", "application/json") res, err := client.Do(req) if err != nil { fmt.Println(err) return } defer res.Body.Close() body, err := io.ReadAll(res.Body) if err != nil { fmt.Println(err) return } fmt.Println(string(body)) } ``` ```json theme={null} { "choices": [ { "finish_reason": "stop", "index": 0, "message": { "content": "Based on the image provided, this is a technical documentation page titled **\"Authentication\"** for an API service called **GPTProto**. It guides developers on how to securely access and use the API.\n\nHere is a breakdown of the specific sections contained in the file:\n\n**1. API Key Authentication**\n* It explains that the GPTProto API uses **Bearer token authentication**.\n* All requests must include the API key in the header.\n\n**2. Getting Your API Key**\n* Provides a step-by-step guide:\n 1. Sign up at `https://gptproto.com`.\n 2. Navigate to the API Keys section in the dashboard.\n 3. Generate a new key.\n 4. Copy and store it securely.\n* **Security Warning:** It explicitly warns users to keep keys secure, not to commit them to version control, and to rotate them regularly.\n\n**3. Making Authenticated Requests**\n* Shows how to structure the HTTP header: `Authorization: Bearer YOUR_API_KEY`.\n* Provides a **cURL** code snippet demonstrating a POST request to `https://gptproto.com/v1/chat/completions` using the model \"gpt-4o\".\n\n**4. Environment Variables**\n* **Recommended Setup:** Advises storing keys in environment variables (e.g., `export GPTPROTO_API_KEY=\"...\"`) rather than hardcoding them.\n* **Using .env Files:** Shows a Python code example using `python-dotenv` to load credentials securely.\n* **Warning:** Reminds users to add `.env` files to `.gitignore` to prevent leaking secrets.\n\n**5. Authentication Errors**\n* Lists common HTTP error codes and their JSON response formats:\n * **401 Unauthorized:** Key is missing or invalid.\n * **403 Forbidden:** Key doesn't have permission for the resource.\n * **429 Too Many Requests:** Rate limit exceeded.\n\n**6. Best Practices**\n* Lists expandable sections for maintaining security, such as \"Implement Key Rotation,\" \"Use Different Keys for Different Environments,\" and \"Monitor Usage.\"\n\n**7. API Key Management**\n* **Generating New Keys:** Instructions on how to create descriptive keys via the dashboard. It notes you can only copy the key once.\n* **Revoking Keys:** Steps to revoke a compromised key and update applications.\n\n**8. Support**\n* Troubleshooting tips for authentication issues.\n* Provides a contact email for help: `jacoblam3219@gmail.com`.", "role": "assistant" } } ], "created": 1766411482, "id": "chatcmpl-****", "model": "gemini-2.5-pro", "object": "chat.completion", "usage": { "completion_tokens": 2051, "completion_tokens_details": { "accepted_prediction_tokens": 0, "audio_tokens": 0, "reasoning_tokens": 1489, "rejected_prediction_tokens": 0 }, "prompt_tokens": 519, "prompt_tokens_details": { "audio_tokens": 0, "cached_tokens": 0 }, "total_tokens": 2570 } } ``` ## Parameters ### Core Parameters | Parameter | Type | Required | Default | Range | Description | | ---------------------------------- | -------------- | -------- | ------- | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | `model` | string | ✅ Yes | - | - | Model ID used to generate the response, like `gpt-4o` or `o3`. OpenAI offers a wide range of models with different capabilities, performance characteristics, and price points. Refer to the model guide to browse and compare available models. | | `messages` | array | ✅ Yes | - | - | A list of messages comprising the conversation so far. Depending on the model you use, different message types (modalities) are supported, like text, images, and audio. | | `>messages.role` | string | ✅ Yes | - | `developer`
`user`
`system` | The role of the messages author. | | `>messages.name` | string | ❌ No | - | - | An optional name for the participant. Provides the model information to differentiate between participants of the same role. | | `>messages.content` | string / array | ✅ Yes | - | - | The contents of the developer message. | | `>>messages.content.type` | string | ✅ Yes | - | `text`
`image_url` | The type of the content part | | `>>messages.content.text` | string | ❌ No | - | - | The text content | | `>>messages.content.image_url` | object | ❌ No | - | - | The image URL content | | `>>messages.content.image_url.url` | string | ❌ No | - | - | The URL of the image | ### Advanced Parameters | Parameter | Type | Required | Default | Range | Description | | ----------------------- | -------------- | -------- | ------- | ------------------- | ------------------------------------------------------------------------------------------------------------------------------------- | | `max_completion_tokens` | integer / null | ❌ No | - | - | An upper bound for the number of tokens that can be generated for a completion, including visible output tokens and reasoning tokens. | | `stream` | boolean | ❌ No | `false` | `true`
`false` | Whether to stream the response back incrementally. Defaults to false. | ## Error Codes ### Common Error Codes | Error Code | Error Name | Description | | ---------- | ------------------------ | ----------------------------------------------------------------------------------------------------------------- | | 401 | Unauthorized | API key is missing or invalid | | 403 | Forbidden | Your API key doesn't have permission to access this resource, or insufficient balance for the requested operation | | 429 | Too Many Requests | You've exceeded your rate limit | | 500 | Internal server error | An internal server error occurred | | 503 | Content policy violation | Content blocked due to safety concerns (actual status code is 400) |