tokevenClaudevsClaude
Claude Opus 4.8 vs Claude Opus 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 Opus 5
FlagshipInput $/MTok
$5.00
$5.00
Output $/MTok
$25.00
$25.00
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
0
Code Review
94
vs
0
Summarization
88
vs
0
Q&A
85
vs
0
Extraction
82
vs
0
Reasoning
97
vs
0
Classification
80
vs
0
Creative Writing
93
vs
0
Claude Opus 4.8
Claude Opus 5
Guidance
When to use Claude Opus 4.8 vs Claude Opus 5
Choose Claude Opus 4.8 when...
- Similar performance; consider provider preference or ecosystem fit.
Choose Claude Opus 5 when...
- -You need a larger context window (1,000K vs 200K)
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 4.8
Claude Opus 5
100K tokens
$1.10
$1.10
1M tokens
$11.00
$11.00
10M tokens
$110.00
$110.00
FAQ
When should I use Claude Opus 4.8 instead of Claude Opus 5?
Claude Opus 4.8 and Claude Opus 5 perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is Claude Opus 5 cheaper than Claude Opus 4.8?
Both models have the same input pricing at $5.00/MTok. Compare output pricing: $25.00 vs $25.00/MTok.
What are the context window sizes for Claude Opus 4.8 and Claude Opus 5?
Claude Opus 4.8 has a 200K token context window. Claude Opus 5 has a 1,000K 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 Claude Opus 5 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.