tokevenClaudevsClaude
Claude Opus 4.8 vs Claude Sonnet 5
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 4.8
FlagshipClaude Sonnet 5
Mid-tierInput $/MTok
$5.00
$2.00
Output $/MTok
$25.00
$10.00
Cache discount
90% off
90% off
Context
200K
200K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
95
vs
93
Code Review
94
vs
96
Summarization
88
vs
91
Q&A
85
vs
89
Extraction
82
vs
88
Reasoning
97
vs
90
Classification
80
vs
86
Creative Writing
93
vs
87
Claude Opus 4.8
Claude Sonnet 5
Guidance
When to use Claude Opus 4.8 vs Claude Sonnet 5
Choose Claude Opus 4.8 when...
- -You need strong reasoning (confidence 97 vs 90)
- -You need strong code generation (confidence 95 vs 93)
- -You need strong creative writing (confidence 93 vs 87)
Choose Claude Sonnet 5 when...
- -You need strong code review (confidence 96 vs 94)
- -You need strong summarization (confidence 91 vs 88)
- -You need strong q&a (confidence 89 vs 85)
- -You need strong extraction (confidence 88 vs 82)
- -Cost matters: 60% 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
Claude Sonnet 5
100K tokens
$1.10
$0.44Cheaper
1M tokens
$11.00
$4.40Cheaper
10M tokens
$110.00
$44.00Cheaper
FAQ
When should I use Claude Opus 4.8 instead of Claude Sonnet 5?
Claude Opus 4.8 outperforms Claude Sonnet 5 for Reasoning, Code Generation, Creative Writing. It costs $5.00/$25.00 per million tokens (input/output).
Is Claude Sonnet 5 cheaper than Claude Opus 4.8?
Yes. Claude Sonnet 5 input costs $2.00/MTok vs $5.00/MTok for Claude Opus 4.8, saving 60% on input.
What are the context window sizes for Claude Opus 4.8 and Claude Sonnet 5?
Claude Opus 4.8 has a 200K token context window. Claude Sonnet 5 has a 200K token context window.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.