GPTvsGPT

GPT 4 Turbo (2024-04-09) vs GPT 5.5 Pro

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

Pricing

Side-by-side pricing

GPT 4 Turbo (2024-04-09)

Flagship

GPT 5.5 Pro

Flagship
Input $/MTok
$10.00
$30.00
Output $/MTok
$30.00
$180.00
Cache discount
0% off
0% off
Context
128K
1,050K

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 4 Turbo (2024-04-09)
GPT 5.5 Pro

Guidance

When to use GPT 4 Turbo (2024-04-09) vs GPT 5.5 Pro

Choose GPT 4 Turbo (2024-04-09) when...

  • -Cost matters: 67% cheaper on input tokens

Choose GPT 5.5 Pro when...

  • -You need a larger context window (1,050K vs 128K)
  • 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 4 Turbo (2024-04-09)
GPT 5.5 Pro
100K tokens
$1.60Cheaper
$7.50
1M tokens
$16.00Cheaper
$123.00
10M tokens
$160.00Cheaper
$1230.00

FAQ

When should I use GPT 4 Turbo (2024-04-09) instead of GPT 5.5 Pro?

GPT 4 Turbo (2024-04-09) and GPT 5.5 Pro perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is GPT 5.5 Pro cheaper than GPT 4 Turbo (2024-04-09)?

GPT 5.5 Pro input costs $30.00/MTok, which is 200% more than GPT 4 Turbo (2024-04-09) at $10.00/MTok.

What are the context window sizes for GPT 4 Turbo (2024-04-09) and GPT 5.5 Pro?

GPT 4 Turbo (2024-04-09) has a 128K token context window. GPT 5.5 Pro has a 1,050K token context window.

Track your real costs

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