tokevenClaudevsGPT
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
FlagshipGPT 5.6 Sol
FlagshipInput $/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
63
vs
67
Code Review
94
vs
92
Summarization
69
vs
70
Q&A
85
vs
91
Extraction
73
vs
75
Reasoning
89
vs
92
Classification
80
vs
86
Creative Writing
81
vs
76
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 code review (confidence 94 vs 92)
- -You need strong creative writing (confidence 81 vs 76)
- -You need a larger context window (1M vs 922K)
Choose GPT 5.6 Sol when...
- -You need strong reasoning (confidence 92 vs 89)
- -You need strong q&a (confidence 91 vs 85)
- -You need strong classification (confidence 86 vs 80)
- -You need strong extraction (confidence 75 vs 73)
- -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 4.8
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 4.8 instead of GPT 5.6 Sol?
Claude Opus 4.8 outperforms GPT 5.6 Sol for Code Review, Creative Writing. It costs $5.00/$25.00 per million tokens (input/output).
Is GPT 5.6 Sol cheaper than Claude Opus 4.8?
Yes. GPT 5.6 Sol input costs $4.00/MTok vs $5.00/MTok for Claude Opus 4.8, saving 20% on input.
What are the context window sizes for Claude Opus 4.8 and GPT 5.6 Sol?
Claude Opus 4.8 has a 1M token context window. GPT 5.6 Sol has a 922K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Opus 4.8 and GPT 5.6 Sol stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.