ClaudevsGPT

Claude Sonnet 4.6 vs GPT 5.4

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

Pricing

Side-by-side pricing

Claude Sonnet 4.6

Mid-tier

GPT 5.4

Mid-tier
Input $/MTok
$3.00
$2.50
Output $/MTok
$15.00
$15.00
Cache discount
90% off
90% off
Context
1M
1.1M

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
57
vs
63
Code Review
95
vs
82
Summarization
61
vs
67
Q&A
88
vs
91
Extraction
71
vs
76
Reasoning
85
vs
88
Classification
84
vs
88
Creative Writing
69
vs
79
Claude Sonnet 4.6
GPT 5.4

Guidance

When to use Claude Sonnet 4.6 vs GPT 5.4

Choose Claude Sonnet 4.6 when...

  • -You need strong code review (confidence 95 vs 82)

Choose GPT 5.4 when...

  • -You need strong q&a (confidence 91 vs 88)
  • -You need strong reasoning (confidence 88 vs 85)
  • -You need strong classification (confidence 88 vs 84)
  • -You need strong creative writing (confidence 79 vs 69)
  • -Cost matters: 17% cheaper on input tokens
  • -You need a larger context window (1.1M vs 1M)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Sonnet 4.6
GPT 5.4
100K tokens
$0.66
$0.63Cheaper
1M tokens
$6.60Cheaper
$10.25
10M tokens
$66.00Cheaper
$102.50

FAQ

When should I use Claude Sonnet 4.6 instead of GPT 5.4?

Claude Sonnet 4.6 outperforms GPT 5.4 for Code Review. It costs $3.00/$15.00 per million tokens (input/output).

Is GPT 5.4 cheaper than Claude Sonnet 4.6?

Yes. GPT 5.4 input costs $2.50/MTok vs $3.00/MTok for Claude Sonnet 4.6, saving 17% on input.

What are the context window sizes for Claude Sonnet 4.6 and GPT 5.4?

Claude Sonnet 4.6 has a 1M token context window. GPT 5.4 has a 1.1M token context window.

Track your real costs

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