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
200K
128K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
92
vs
84
Code Review
95
vs
82
Summarization
90
vs
91
Q&A
88
vs
91
Extraction
86
vs
89
Reasoning
88
vs
80
Classification
84
vs
88
Creative Writing
85
vs
78
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)
  • -You need strong code generation (confidence 92 vs 84)
  • -You need strong reasoning (confidence 88 vs 80)
  • -You need strong creative writing (confidence 85 vs 78)
  • -You need a larger context window (200K vs 128K)

Choose GPT 5.4 when...

  • -You need strong summarization (confidence 91 vs 90)
  • -You need strong q&a (confidence 91 vs 88)
  • -You need strong extraction (confidence 89 vs 86)
  • -You need strong classification (confidence 88 vs 84)
  • -Cost matters: 17% cheaper on input tokens

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
$6.60
$6.25Cheaper
10M tokens
$66.00
$62.50Cheaper

FAQ

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

Claude Sonnet 4.6 outperforms GPT 5.4 for Code Generation, Code Review, Reasoning. 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 200K token context window. GPT 5.4 has a 128K token context window.

Track your real costs

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