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OpenAI: Codex Mini

OpenAI: Codex Mini

OpenAI’s Lightweight Code Generation LLM for IDEs, Bash Scripts, and Real-Time API Use

Input: 200,000 tokens
Context: 200 000 tokens
Modality:
Text
Image
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OpenAI’s Lightweight Model for Fast, Accurate Code Completion via API
‍

Codex Mini is a compact variant of OpenAI’s Codex family, designed to provide fast and efficient code completions, inline suggestions, and lightweight reasoning for developer tools and automation agents. Optimized for latency-sensitive environments, Codex Mini excels at real-time integration into IDEs, browser extensions, and API workflows where speed and cost-efficiency matter.

Available through AnyAPI.ai, Codex Mini offers reliable programming support without requiring access to OpenAI’s full Codex infrastructure or licensing tiers.
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Key Features of Codex Mini
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Fast Code Completion and Autocomplete

Codex Mini generates accurate suggestions in real time for languages like Python, JavaScript, HTML, and Bash.
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Lightweight and Cost-Efficient

Ideal for startups and SaaS tools that require frequent API calls at lower latency and budget.


Low Latency Inference (~150–300ms)

Delivers sub-second code completions and real-time typing suggestions for developer UX.


Context-Aware Scripting and Shell Tasks

Handles CLI, configuration files, and devops scripts with strong syntax alignment.


Integration-Ready with Low Resource Overhead

Fits easily into mobile, browser, or edge-based coding tools.


Use Cases for Codex Mini


IDE Plugins and Browser-Based Code Tools

Enable autocomplete, inline explanations, or code editing assistants in lightweight coding environments.


DevOps and Scripting Agents

Use Codex Mini to generate or validate bash commands, Dockerfiles, Terraform configs, and CI/CD YAML files.


Low-Code and No-Code Platforms

Support users by generating snippets, formulas, or automation rules in internal builder interfaces.


Real-Time Programming Helpbots

Build developer-facing chatbots that answer how-to questions, provide examples, and complete code live.


API-First Code Generation in SaaS

Integrate Codex Mini into business tools that automate email templates, spreadsheet formulas, or cloud function logic.


Why Use Codex Mini via AnyAPI.ai
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No OpenAI Account Required

Use Codex Mini instantly without managing OpenAI keys or quota limits.


Unified Access to Coding Models

Switch between Codex, DeepSeek, Mistral, and GPT models using a single endpoint and SDK.


Fast and Lightweight Deployment

Codex Mini is designed for apps where speed matters more than full-model depth.


Perfect for SaaS and Dev Tool Builders

Embed Codex Mini into code-centric features without dealing with heavy infrastructure.


More Reliable Than OpenRouter or HF Inference‍

AnyAPI.ai ensures strong uptime, usage analytics, and team-wide observability.


Use Codex Mini for Fast, Integrated Code AI


Codex Mini is the ideal lightweight LLM for powering fast, low-cost, code-focused features in SaaS, IDEs, and developer tools.

Access Codex Mini via AnyAPI.ai and start integrating smart code generation in minutes.

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Sign up, get your API key, and build today.

Comparison with other LLMs

Model
Context Window
Multimodal
Latency
Strengths
Model
OpenAI: Codex Mini
Context Window
200k
Multimodal
Yes
Latency
Fast
Strengths
Real-time IDE codegen, Bash scripts
Get access
Model
OpenAI: GPT-3.5 Turbo
Context Window
16k
Multimodal
No
Latency
Very fast
Strengths
Affordable, fast, ideal for lightweight apps
Get access
Model
Anthropic: Claude Haiku 3.5
Context Window
200k
Multimodal
No
Latency
Ultra Fast
Strengths
Lowest latency, cost-effective, safe outputs
Get access
Model
Mistral: Mistral Medium
Context Window
32k
Multimodal
No
Latency
Very Fast
Strengths
Open-weight, lightweight, ideal for real-time
Get access
Model
DeepSeek: DeepSeek V3
Context Window
32k
Multimodal
Yes
Latency
Fast
Strengths
Coding, RAG, agents, enterprise apps
Get access

Sample code for 

OpenAI: Codex Mini

Python
JavaScript
Curl
import requests

url = "https://api.anyapi.ai/v1/chat/completions"

payload = {
    "model": "codex-mini",
    "messages": [
        {
            "content": [
                {
                    "type": "text",
                    "text": "Hello"
                },
                {
                    "image_url": {
                        "detail": "auto",
                        "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
                    },
                    "type": "image_url"
                }
            ],
            "role": "user"
        }
    ]
}
headers = {
    "Authorization": "Bearer AnyAPI_API_KEY",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
import requests url = "https://api.anyapi.ai/v1/chat/completions" payload = { "model": "codex-mini", "messages": [ { "content": [ { "type": "text", "text": "Hello" }, { "image_url": { "detail": "auto", "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg" }, "type": "image_url" } ], "role": "user" } ] } headers = { "Authorization": "Bearer AnyAPI_API_KEY", "Content-Type": "application/json" } response = requests.post(url, json=payload, headers=headers) print(response.json())
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const url = 'https://api.anyapi.ai/v1/chat/completions';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer AnyAPI_API_KEY', 'Content-Type': 'application/json'},
  body: '{"model":"codex-mini","messages":[{"content":[{"type":"text","text":"Hello"},{"image_url":{"detail":"auto","url":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"},"type":"image_url"}],"role":"user"}]}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
const url = 'https://api.anyapi.ai/v1/chat/completions'; const options = { method: 'POST', headers: {Authorization: 'Bearer AnyAPI_API_KEY', 'Content-Type': 'application/json'}, body: '{"model":"codex-mini","messages":[{"content":[{"type":"text","text":"Hello"},{"image_url":{"detail":"auto","url":"https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"},"type":"image_url"}],"role":"user"}]}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); }
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Code is copied
curl --request POST \
  --url https://api.anyapi.ai/v1/chat/completions \
  --header 'Authorization: Bearer AnyAPI_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "codex-mini",
  "messages": [
    {
      "content": [
        {
          "type": "text",
          "text": "Hello"
        },
        {
          "image_url": {
            "detail": "auto",
            "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg"
          },
          "type": "image_url"
        }
      ],
      "role": "user"
    }
  ]
}'
curl --request POST \ --url https://api.anyapi.ai/v1/chat/completions \ --header 'Authorization: Bearer AnyAPI_API_KEY' \ --header 'Content-Type: application/json' \ --data '{ "model": "codex-mini", "messages": [ { "content": [ { "type": "text", "text": "Hello" }, { "image_url": { "detail": "auto", "url": "https://upload.wikimedia.org/wikipedia/commons/thumb/d/dd/Gfp-wisconsin-madison-the-nature-boardwalk.jpg/2560px-Gfp-wisconsin-madison-the-nature-boardwalk.jpg" }, "type": "image_url" } ], "role": "user" } ] }'
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FAQs

Answers to common questions about integrating and using this AI model via AnyAPI.ai

What is Codex Mini best for?

Fast autocomplete, CLI/script generation, and integration into browser or editor tools.

Is Codex Mini open-source?

No. It is proprietary to OpenAI but available via API platforms like AnyAPI.ai.

How does Codex Mini compare to GPT-3.5 Turbo?

Codex Mini is faster and more accurate for code-specific tasks but weaker in general language tasks.

Does Codex Mini support shell scripting and config files?

Yes. It works well with Bash, JSON, YAML, and similar formats.

Can I use it without OpenAI’s platform?

Yes. AnyAPI provides direct access to Codex Mini without OpenAI credentials.

Still have questions?

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