GPTvsGPT

GPT 5.4 vs GPT 5

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

Pricing

Side-by-side pricing

GPT 5.4

Mid-tier

GPT 5

Mid-tier
Input $/MTok
$2.50
$1.25
Output $/MTok
$15.00
$10.00
Cache discount
90% off
90% off
Context
1,050K
272K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
84
vs
0
Code Review
82
vs
0
Summarization
91
vs
0
Q&A
91
vs
0
Extraction
89
vs
0
Reasoning
80
vs
0
Classification
88
vs
0
Creative Writing
78
vs
0
GPT 5.4
GPT 5

Guidance

When to use GPT 5.4 vs GPT 5

Choose GPT 5.4 when...

  • -You need a larger context window (1,050K vs 272K)
  • Similar performance; consider provider preference or ecosystem fit.

Choose GPT 5 when...

  • -Cost matters: 50% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.4
GPT 5
100K tokens
$0.63
$0.39Cheaper
1M tokens
$10.25
$3.88Cheaper
10M tokens
$102.50
$38.75Cheaper

FAQ

When should I use GPT 5.4 instead of GPT 5?

GPT 5.4 and GPT 5 perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is GPT 5 cheaper than GPT 5.4?

Yes. GPT 5 input costs $1.25/MTok vs $2.50/MTok for GPT 5.4, saving 50% on input.

What are the context window sizes for GPT 5.4 and GPT 5?

GPT 5.4 has a 1,050K token context window. GPT 5 has a 272K token context window.

Track your real costs

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