tokevenClaudevsClaude
Claude Opus 5 vs Claude Fable 5
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Opus 5
FlagshipClaude Fable 5
FlagshipInput $/MTok
$5.00
$10.00
Output $/MTok
$25.00
$50.00
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
72
vs
72
Code Review
0
vs
95
Summarization
65
vs
77
Q&A
0
vs
88
Extraction
73
vs
75
Reasoning
91
vs
90
Classification
0
vs
82
Creative Writing
61
vs
72
Claude Opus 5
Claude Fable 5
Guidance
When to use Claude Opus 5 vs Claude Fable 5
Choose Claude Opus 5 when...
- -You need strong reasoning (confidence 91 vs 90)
- -Cost matters: 50% cheaper on input tokens
Choose Claude Fable 5 when...
- -You need strong summarization (confidence 77 vs 65)
- -You need strong extraction (confidence 75 vs 73)
- -You need strong creative writing (confidence 72 vs 61)
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Opus 5
Claude Fable 5
100K tokens
$1.10Cheaper
$2.20
1M tokens
$11.00Cheaper
$22.00
10M tokens
$110.00Cheaper
$220.00
FAQ
When should I use Claude Opus 5 instead of Claude Fable 5?
Claude Opus 5 outperforms Claude Fable 5 for Reasoning. It costs $5.00/$25.00 per million tokens (input/output).
Is Claude Fable 5 cheaper than Claude Opus 5?
Claude Fable 5 input costs $10.00/MTok, which is 100% more than Claude Opus 5 at $5.00/MTok.
What are the context window sizes for Claude Opus 5 and Claude Fable 5?
Claude Opus 5 has a 1M token context window. Claude Fable 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 5 and Claude Fable 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.