GPTvsGPT

GPT 5 Mini vs o4 Mini

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

GPT 5 Mini

Fast / Budget

o4 Mini

Fast / Budget
Input $/MTok
$0.25
$1.10
Output $/MTok
$2.00
$4.40
Cache discount
90% off
75% off
Context
272K
200K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
0
Code Review
0
vs
0
Summarization
0
vs
0
Q&A
0
vs
0
Extraction
0
vs
0
Reasoning
0
vs
0
Classification
0
vs
0
Creative Writing
0
vs
0
GPT 5 Mini
o4 Mini

Guidance

When to use GPT 5 Mini vs o4 Mini

Choose GPT 5 Mini when...

  • -Cost matters: 77% cheaper on input tokens
  • -You need a larger context window (272K vs 200K)

Choose o4 Mini when...

  • Similar performance; consider provider preference or ecosystem fit.

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5 Mini
o4 Mini
100K tokens
$0.08Cheaper
$0.21
1M tokens
$0.77Cheaper
$2.09
10M tokens
$7.75Cheaper
$20.90

FAQ

When should I use GPT 5 Mini instead of o4 Mini?

GPT 5 Mini and o4 Mini perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is o4 Mini cheaper than GPT 5 Mini?

o4 Mini input costs $1.10/MTok, which is 340% more than GPT 5 Mini at $0.25/MTok.

What are the context window sizes for GPT 5 Mini and o4 Mini?

GPT 5 Mini has a 272K token context window. o4 Mini has a 200K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.