GPTvsGrok

GPT 5.4 Mini vs Grok 4.20 Non-Reasoning

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

Grok 4.20 Non-Reasoning

Mid-tier
Input $/MTok
$0.75
$1.25
Output $/MTok
$4.50
$2.50
Cache discount
90% off
84% off
Context
272K
1,000K

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 5.4 Mini
Grok 4.20 Non-Reasoning

Guidance

When to use GPT 5.4 Mini vs Grok 4.20 Non-Reasoning

Choose GPT 5.4 Mini when...

  • -Cost matters: 40% cheaper on input tokens

Choose Grok 4.20 Non-Reasoning when...

  • -You need a larger context window (1,000K vs 272K)
  • 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 5.4 Mini
Grok 4.20 Non-Reasoning
100K tokens
$0.19
$0.16Cheaper
1M tokens
$1.87Cheaper
$3.25
10M tokens
$18.75Cheaper
$32.50

FAQ

When should I use GPT 5.4 Mini instead of Grok 4.20 Non-Reasoning?

GPT 5.4 Mini and Grok 4.20 Non-Reasoning perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is Grok 4.20 Non-Reasoning cheaper than GPT 5.4 Mini?

Grok 4.20 Non-Reasoning input costs $1.25/MTok, which is 67% more than GPT 5.4 Mini at $0.75/MTok.

What are the context window sizes for GPT 5.4 Mini and Grok 4.20 Non-Reasoning?

GPT 5.4 Mini has a 272K token context window. Grok 4.20 Non-Reasoning has a 1,000K token context window.

Track your real costs

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