GPT-5 mini Cost Calculator

GPT-5 mini is OpenAI's cost-efficient small model — 20x cheaper than GPT-5.5, ideal for high-volume production. Cached input at $0.02/1M tokens enables huge savings on RAG and chat workloads.

Input

$0.25

per 1M tokens

Output

$2.00

per 1M tokens

Context window

272K

tokens

Released

2025-08

Cutoff 2025-04

Model

✓ Exact tokenizer·$0.25 in·$2.00 out (per 1M)

Quick start with a use case

Input tokens

Output tokens

Total cost per call$0.001250

Input$0.000250

Output$0.001000

Cost comparison

Standard

$0.001250

With Caching

$0.001135

Save 9% ↓

With Batch

Not supported

Cutting costs? Open models start at $0.14/1M

DeepSeek, Kimi & 200+ open models on Novita AI — often 5–20x cheaper than proprietary APIs for comparable tasks.

Try Novita AI

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Detailed pricing

GPT-5 mini pricing breakdown

All pricing dimensions including caching and batch discounts.

Type	Price (per 1M tokens)	Note
Input	$0.2500	Standard input tokens
Output	$2.0000	Generated output tokens
Cached input	$0.0200	Reused prompt content

Cutting costs? Open models start at $0.14/1M

DeepSeek, Kimi & 200+ open models on Novita AI — often 5–20x cheaper than proprietary APIs for comparable tasks.

Try Novita AI

Affiliate link — we may earn a commission at no extra cost to you.

Last verified 2026-08-01 · OpenAI official pricing · ⚠️ Spotted a wrong price? Report in 30s →

How it compares

GPT-5 mini vs alternatives

Single-call cost (1000 input + 500 output tokens) ranked from cheapest.

Model	Per call	vs GPT-5 mini
GPT-5 mini OpenAI · this page	$0.001250	—
DeepSeek V4-Flash DeepSeek	$0.000280	−78%
DeepSeek V3.2 DeepSeek	$0.000480	−62%
GPT-5.6 Luna OpenAI	$0.000800	−36%
Mistral Large 3 Mistral	$0.001250	+0%
Gemini 3.5 Flash Lite Google	$0.001550	+24%

Recommended use

When to choose GPT-5 mini

GPT-5 mini shines for general-purpose tasks, image and document understanding, high-throughput, and low-latency tasks. Token counts on this page are exact via the official tokenizer.

✓Context window of 272K tokens handles long conversations and large documents.

✓Prompt caching available — significant savings for repeated system prompts.

✓Tool / function calling supported.

FAQ

Frequently asked questions

GPT-5 mini costs $0.25 per 1M input tokens and $2.00 per 1M output tokens. A typical chat call (1000 input + 500 output tokens) costs approximately $0.0013. Use the calculator above to estimate your specific use case.