OpenAI

GPT-5 mini

Public pricingLarge memoryVisionDeep thinkingTool use

GPT-5 mini is OpenAI's large-memory model with deep reasoning, vision, tool use. This page shows current pricing, an interactive cost calculator, and a side-by-side with similar models.

Input

$0.25/1M tokens

Output

$2.00/1M tokens

Cached

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Batch

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Interactive

Calculate your GPT-5 mini bill.

Adjust the workload below and watch the monthly cost update in real time.

What would GPT-5 mini cost you?

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1,00010,00050,000250,0001M10M

Technical specifications

GPT-5 mini at a glance.

Memory

400,000

tokens

Max reply

32,768

tokens

Memory tier

Large

an entire book or large codebase

Tokenizer

tiktoken-o200k

Released

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Training cutoff

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Availability

Public pricing

Status

active

What it can do

Capabilities & limits.

  • Understands images
  • Deep step-by-step thinking
  • Uses tools / calls functions
  • Strict JSON output
  • Streams replies
  • Fine-tunable on your data

When to pick GPT-5 mini

  • Multi-step reasoning, research agents, or hard math.
  • Screenshot analysis, image understanding, or document OCR.
  • Agentic workflows that call tools or APIs.
  • Long documents, full codebases, or extensive chat histories.

When to look elsewhere

  • Very latency-sensitive, real-time apps where every millisecond counts.

Alternatives

Similar models to compare.

FAQ

GPT-5 mini — the questions we see most.

Pricing, capabilities, alternatives — generated from the same data that powers the calculator above.

Get instant answers from our AI agent

At a typical workload of 50,000 conversations a month with 1,500-token prompts and 800-token replies, GPT-5 mini costs roughly $99 per month. Input is $0.25 /1M tokens and output is $2.00 /1M tokens.
GPT-5 mini has a 400,000-token context window (large memory — an entire book or large codebase). That means you can fit about 75,000 words of input and history in a single call.
Beyond text generation, GPT-5 mini supports understanding images, deep step-by-step reasoning, calling functions / tools, strict JSON output. It streams replies by default.
Models in a similar class include GPT-4o mini, GPT-4.1 mini, GPT-4.1 nano. The "Similar models" section below this FAQ links into each.

Still unsure?

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