GPTvsDeepSeek

GPT 5.4 Mini vs DeepSeek V4 Pro

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

Pricing

Side-by-side pricing

GPT 5.4 Mini

Fast / Budget

DeepSeek V4 Pro

Flagship
Input $/MTok
$0.75
$0.66
Output $/MTok
$4.50
$1.98
Cache discount
90% off
97% off
Context
272K
1M

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
54
vs
0
Code Review
0
vs
0
Summarization
58
vs
0
Q&A
0
vs
0
Extraction
75
vs
0
Reasoning
71
vs
0
Classification
0
vs
0
Creative Writing
67
vs
0
GPT 5.4 Mini
DeepSeek V4 Pro

Guidance

When to use GPT 5.4 Mini vs DeepSeek V4 Pro

Choose GPT 5.4 Mini when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose DeepSeek V4 Pro when...

  • -Cost matters: 12% cheaper on input tokens
  • -You need a larger context window (1M vs 272K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
GPT 5.4 Mini
DeepSeek V4 Pro
100K tokens
$0.19
$0.11Cheaper
1M tokens
$1.87
$1.06Cheaper
10M tokens
$18.75
$10.56Cheaper

FAQ

When should I use GPT 5.4 Mini instead of DeepSeek V4 Pro?

GPT 5.4 Mini and DeepSeek V4 Pro perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is DeepSeek V4 Pro cheaper than GPT 5.4 Mini?

Yes. DeepSeek V4 Pro input costs $0.66/MTok vs $0.75/MTok for GPT 5.4 Mini, saving 12% on input.

What are the context window sizes for GPT 5.4 Mini and DeepSeek V4 Pro?

GPT 5.4 Mini has a 272K token context window. DeepSeek V4 Pro has a 1M token context window.

Track your real costs

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