Name: GPT-5 mini – Fast Text Generation | Free · $1/mo | API.market
Brand: swift-api
SKU: api-swift-api-gpt-5-mini
Availability: InStock
Author: API Market

Swift API

# GPT-5 mini

## Overview

The GPT-5 mini API provides access to a faster, more cost-efficient version of the GPT-5 language model.  It excels at handling well-defined tasks and responding to precise prompts, making it ideal for a variety of applications requiring quick and accurate text generation.  This API utilizes asynchronous processing to handle potentially long-running requests efficiently.

## Features

* **Fast and Cost-Efficient:** Optimized for speed and cost-effectiveness compared to larger models.
* **Precise Prompts:**  Well-suited for tasks requiring specific instructions and predictable outputs.
* **Content Filtering:** Built-in content filters for hate, self-harm, sexual, and violent content.
* **Usage Metadata:**  Provides detailed token usage information for cost monitoring.
* **Asynchronous Processing:**  Handles long-running requests efficiently without blocking.
* **Streaming Support:** Option to stream responses as they are generated (using `stream: true`).

## Use Cases

* **Customer Support Chatbots:**  Develop responsive and helpful chatbots for handling common customer inquiries.  Target specific product questions or support scenarios for optimal performance.  Example: Answering FAQs, troubleshooting issues.
* **Content Generation for Marketing:**  Create concise and compelling marketing copy for ads, product descriptions, or social media posts. Example: Generating product descriptions, writing tweets.
* **Code Generation:**  Generate snippets of code in various programming languages based on clear and concise instructions. Example: Converting code from one language to another, creating functions for specific tasks.
* **Educational Tools:**  Build interactive educational tools that provide quick answers and explanations to student queries. Example: Answering math problems, explaining historical events.
* **Data Analysis and Summarization:** Summarize complex data sets or generate textual representations of information.  Example: Generating reports from data, creating summaries of meeting minutes.


## Visual Examples

Since this is a text-based API, there are no direct visual input or output images. The primary interaction is through text prompts and responses. Example prompts and responses are provided in the API documentation below.


## Pricing

- 1 API unit equals 1 request processed.
- GET requests to check prediction status (GET /api/v1/magicapi/gpt-5-mini/predictions/{id}) are free and do not count toward API unit usage.
- Different pricing tiers are available based on usage volume.  Contact us for more information.

## API Documentation

### Base URL

All API requests should be made to: `https://prod.api.market/api/v1/magicapi/gpt-5-mini`

### Authentication

Authentication is handled via API key. Include your API key in the request header:

```
x-api-market-key: YOUR_API_MARKET_KEY
```

### Asynchronous Processing

**IMPORTANT**: This API uses asynchronous processing for predictions.  The typical flow is:

1. Submit a prediction request to the POST endpoint.
2. Receive a prediction ID in the response.
3. Poll the GET endpoint with the prediction ID to check status: `/api/v1/magicapi/gpt-5-mini/predictions/{id}`
4. Continue polling until the prediction is complete.

The processing time varies depending on the complexity of the request. Your code should implement:

- A polling interval of 1 second between status checks.
- A maximum timeout of 600 seconds (10 minutes).
- Status checking logic that continues while status is "starting" or "processing".
- Result handling when status becomes "succeeded".
- Error handling when status becomes "failed" or timeout is reached.

See the Implementation Guide section for code examples.

### Endpoints

#### Create Chat Completion

`POST /api/v1/magicapi/gpt-5-mini/chat/completions`

Creates a model response for the given chat conversation.

```bash
curl -X POST "https://prod.api.market/api/v1/magicapi/gpt-5-mini/chat/completions" \
-H "Content-Type: application/json" \
-H "x-api-market-key: YOUR_API_MARKET_KEY" \
-d '{
  "model": "gpt-5-mini",
  "messages": [
    {"role": "user", "content": "There are ten birds in a tree. A hunter shoots one. How many are left in the tree?"}
  ]
}'
```

**Request Body:**

```json
{
  "model": "gpt-5-mini",
  "messages": [
    {"role": "user", "content": "There are ten birds in a tree. A hunter shoots one. How many are left in the tree?"}
  ]
}
```

**Response (200 OK):**

```json
{
  "id": "chatcmpl-CFJWVPlCose16sy2GzKWGeowqva9s",
  "object": "chat.completion",
  "created": 1757766003,
  "model": "gpt-5-mini",
  "choices": [
    {
      "index": 0,
      "finish_reason": "stop",
      "message": {
        "role": "assistant",
        "content": "If a hunter shoots one bird, the noise would likely scare the other birds away. So, even though one bird is shot, the rest would typically fly off, leaving **0 birds** in the tree."
      }
    }
  ],
  "usage": {
    "prompt_tokens": 28,
    "completion_tokens": 43,
    "total_tokens": 71
  }
}
```


## Status Codes

- 200 OK: Request successful.
- 201 Created: Resource successfully created (not typically used for this API).
- 400 Bad Request: Invalid input parameters or malformed request.
- 401 Unauthorized: Missing or invalid API key.
- 403 Forbidden: Valid API key but insufficient permissions.
- 404 Not Found: Resource not found.
- 429 Too Many Requests: Rate limit exceeded.  Back off and retry after a short delay.
- 500 Internal Server Error: Server-side error.  Contact support.
- 503 Service Unavailable: Service temporarily unavailable.  Retry after a short delay.


## Error Handling


Error responses will be returned in JSON format:

```json
{
  "error": {
    "code": "invalid_parameter",
    "message": "The parameter 'messages' is required",
    "status": 400
  }
}
```

Common errors:

- `invalid_parameter`:  Check your input parameters and ensure they are valid.
- `unauthorized`: Ensure you are providing a valid API key in the `x-api-market-key` header.
- `too_many_requests`: You have exceeded the rate limit.  Implement retry logic with exponential backoff.


## Implementation Guide

### Example Code


```javascript
// JavaScript example with proper polling and timeout (See previous response for this code)
```

```python
# Python example with proper polling and timeout (See previous response for this code)
```

```bash
# cURL example (See previous response for this code)
```


### Performance Optimization

- Use precise and well-defined prompts to minimize token usage and improve response speed.
- Implement proper error handling and retry logic to handle transient errors gracefully.


## FAQ

- **How does GPT-5 mini compare to GPT-5?**  GPT-5 mini is faster and more cost-efficient, making it suitable for well-defined tasks and precise prompts.  GPT-5 is generally more powerful and capable of handling more complex tasks.
- **What are the supported input formats?**  The API accepts JSON input as described in the endpoint documentation.
- **What happens if my request times out?**  You will receive an error indicating the timeout.  You can resubmit the request or adjust your timeout settings.
- **How do I get an API key?**  Contact `hello[at]api.market` to request an API key.


## Contact Us

If you have any questions or need assistance, you can reach out to us through the embedded chat on the bottom right corner of the page or send an email to contact@swiftapi.net


Access a fast, cost-efficient language model for text generation and analysis. Free 1000 calls/mo, from $1/mo. Start free on API.market.

GPT-5 mini – Fast Text Generation | Free · $1/mo | API.market

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GPT-5 mini is a faster, more cost-efficient version of GPT-5. It's great for well-defined tasks and precise prompts.

GPT-5 mini