GPT-5 Mini

OpenAI's faster, cost-efficient GPT-5 variant for low-latency and high-volume work.

Low LatencyCost EfficientHigh Volume

Context Window

400,000

GPT-5 Mini

Max Output

128,000

1M tokens

Input

$0.25

Output

Model Codegpt-5-mini

Playground

Model Code

gpt-5-mini

Reference inputs

Reference Images0/5

Click or drag

Enter your prompt here...

Output

No output yet

Pricing

Plan	Context Window	Max Output	Input	Output	Cache Write	Cache Read
GPT-5 Mini	400,000	128,000	$0.25	$2	-	$0.025

Official OpenAI pricing for GPT-5 mini.

Cached input pricing applies to reused prompt tokens.

Cache read or cached input pricing applies to reused prompt tokens.

README

GPT-5 mini is OpenAI's smaller GPT-5-family model for cost-sensitive, high-throughput workloads that still need strong reasoning, tool use, and reliable instruction following.

OpenAI positions GPT-5 mini as a faster and more cost-efficient version of GPT-5 for well-defined tasks.
It supports the same general API shape as the broader GPT-5 family, including tool use and structured outputs, while targeting lower latency and lower unit cost.
It is a strong fit for high-volume assistants, classification-and-routing layers, and production systems where cost and speed are primary constraints.

API

Use the API docs for request format, parameters, and integration details.

OpenAI's faster, cost-efficient GPT-5 variant for low-latency and high-volume work.

Model Code

gpt-5-mini

View API Docs

API

Endpoint

POST /v1/chat/completions

Authentication

Authorization: Bearer YOUR_REACH_API_KEY
Content-Type: application/json

Example

curl -X POST "https://direct.reachapi.ai/v1/chat/completions" \
  -H "Authorization: Bearer YOUR_REACH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "YOUR_MODEL_ID",
    "messages": [
      {
        "role": "user",
        "content": "Introduce ReachAPI in one sentence."
      }
    ],
    "temperature": 0.2
  }'

Related Models

Other models from the same vendor

GPT-5.6 Luna

OpenAI's GPT-5.6 model for efficient, cost-sensitive, high-volume workloads.

GPT-5.6 Sol

OpenAI's GPT-5.6 flagship model for the most demanding production reasoning, coding, and agent workflows.

GPT-5.6 Terra

OpenAI's GPT-5.6 model for strong intelligence with a balanced cost profile.

GPT-5.5

OpenAI's newest frontier model for the most complex coding, reasoning, and professional workflows.

GPT-5.4

OpenAI's frontier model for complex professional, coding, and agentic work at scale.

GPT-5.4 Mini

OpenAI's strongest mini model for coding, computer use, and high-volume agent tasks.

GPT-5.3 Codex

OpenAI's most capable agentic coding model to date.

GPT-5.2

OpenAI's stronger GPT-5-family model for professional, general-purpose, and agentic work.

GPT-5.1

OpenAI's flagship model for coding and agentic tasks with configurable reasoning.

GPT-5.1 Codex

OpenAI's GPT-5.1 variant optimized for agentic coding in Codex workflows.

GPT-5

OpenAI's previous intelligent reasoning model for coding and agentic tasks.

GPT Image 2

OpenAI's state-of-the-art image generation model for high-quality creation and editing with text and image inputs.

GPT Image 2 Async

ReachAPI's asynchronous GPT Image 2 workflow for task-based image generation and editing with callback-ready results.