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
1M
1M
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
63
vs
72
Code Review
94
vs
0
Summarization
69
vs
65
Q&A
85
vs
0
Extraction
73
vs
73
Reasoning
89
vs
91
Classification
80
vs
0
Creative Writing
81
vs
61
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...
- -You need strong creative writing (confidence 81 vs 61)
- -You need strong summarization (confidence 69 vs 65)
Choose Claude Opus 5 when...
- -You need strong reasoning (confidence 91 vs 89)
- -You need strong code generation (confidence 72 vs 63)
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 outperforms Claude Opus 5 for Summarization, Creative Writing. It costs $5.00/$25.00 per million tokens (input/output).
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 1M token context window. Claude Opus 5 has a 1M 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.