ClaudevsGPT

Claude Opus 4.8 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 4.8

Flagship

GPT 5.6 Sol

Flagship
Input $/MTok
$5.00
$5.00
Output $/MTok
$25.00
$30.00
Cache discount
90% off
90% off
Context
200K
1,000K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
95
vs
94
Code Review
94
vs
92
Summarization
88
vs
90
Q&A
85
vs
91
Extraction
82
vs
88
Reasoning
97
vs
96
Classification
80
vs
86
Creative Writing
93
vs
92
Claude Opus 4.8
GPT 5.6 Sol

Guidance

When to use Claude Opus 4.8 vs GPT 5.6 Sol

Choose Claude Opus 4.8 when...

  • -You need strong reasoning (confidence 97 vs 96)
  • -You need strong code generation (confidence 95 vs 94)
  • -You need strong code review (confidence 94 vs 92)
  • -You need strong creative writing (confidence 93 vs 92)

Choose GPT 5.6 Sol when...

  • -You need strong q&a (confidence 91 vs 85)
  • -You need strong summarization (confidence 90 vs 88)
  • -You need strong extraction (confidence 88 vs 82)
  • -You need strong classification (confidence 86 vs 80)
  • -You need a larger context window (1,000K vs 200K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 4.8
GPT 5.6 Sol
100K tokens
$1.10Cheaper
$1.25
1M tokens
$11.00Cheaper
$12.50
10M tokens
$110.00Cheaper
$125.00

FAQ

When should I use Claude Opus 4.8 instead of GPT 5.6 Sol?

Claude Opus 4.8 outperforms GPT 5.6 Sol for Reasoning, Code Generation, Code Review. It costs $5.00/$25.00 per million tokens (input/output).

Is GPT 5.6 Sol cheaper than Claude Opus 4.8?

Both models have the same input pricing at $5.00/MTok. Compare output pricing: $25.00 vs $30.00/MTok.

What are the context window sizes for Claude Opus 4.8 and GPT 5.6 Sol?

Claude Opus 4.8 has a 200K token context window. GPT 5.6 Sol 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.