ClaudevsGPT

Claude Opus 5 vs GPT 5.6 Sol

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

Pricing

Side-by-side pricing

Claude Opus 5

Flagship

GPT 5.6 Sol

Flagship
Input $/MTok
$5.00
$4.00
Output $/MTok
$25.00
$20.00
Cache discount
90% off
90% off
Context
1M
922K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
72
vs
67
Code Review
0
vs
92
Summarization
65
vs
70
Q&A
0
vs
91
Extraction
73
vs
75
Reasoning
91
vs
92
Classification
0
vs
86
Creative Writing
61
vs
76
Claude Opus 5
GPT 5.6 Sol

Guidance

When to use Claude Opus 5 vs GPT 5.6 Sol

Choose Claude Opus 5 when...

  • -You need strong code generation (confidence 72 vs 67)
  • -You need a larger context window (1M vs 922K)

Choose GPT 5.6 Sol when...

  • -You need strong reasoning (confidence 92 vs 91)
  • -You need strong creative writing (confidence 76 vs 61)
  • -You need strong extraction (confidence 75 vs 73)
  • -You need strong summarization (confidence 70 vs 65)
  • -Cost matters: 20% cheaper on input tokens

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 5
GPT 5.6 Sol
100K tokens
$1.10
$0.88Cheaper
1M tokens
$11.00Cheaper
$14.60
10M tokens
$110.00Cheaper
$146.00

FAQ

When should I use Claude Opus 5 instead of GPT 5.6 Sol?

Claude Opus 5 outperforms GPT 5.6 Sol for Code Generation. It costs $5.00/$25.00 per million tokens (input/output).

Is GPT 5.6 Sol cheaper than Claude Opus 5?

Yes. GPT 5.6 Sol input costs $4.00/MTok vs $5.00/MTok for Claude Opus 5, saving 20% on input.

What are the context window sizes for Claude Opus 5 and GPT 5.6 Sol?

Claude Opus 5 has a 1M token context window. GPT 5.6 Sol has a 922K token context window.

Track your real costs

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