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Claude Haiku 4.5 vs Claude Fable 5

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Claude Haiku 4.5

Fast / Budget

Claude Fable 5

Flagship
Input $/MTok
$1.00
$10.00
Output $/MTok
$5.00
$50.00
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
72
vs
96
Code Review
70
vs
95
Summarization
82
vs
90
Q&A
86
vs
88
Extraction
88
vs
85
Reasoning
65
vs
98
Classification
90
vs
82
Creative Writing
60
vs
95
Claude Haiku 4.5
Claude Fable 5

Guidance

When to use Claude Haiku 4.5 vs Claude Fable 5

Choose Claude Haiku 4.5 when...

  • -You need strong classification (confidence 90 vs 82)
  • -You need strong extraction (confidence 88 vs 85)
  • -Cost matters: 90% cheaper on input tokens

Choose Claude Fable 5 when...

  • -You need strong reasoning (confidence 98 vs 65)
  • -You need strong code generation (confidence 96 vs 72)
  • -You need strong code review (confidence 95 vs 70)
  • -You need strong creative writing (confidence 95 vs 60)
  • -You need a larger context window (1,000K vs 200K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Haiku 4.5
Claude Fable 5
100K tokens
$0.22Cheaper
$2.20
1M tokens
$2.20Cheaper
$22.00
10M tokens
$22.00Cheaper
$220.00

FAQ

When should I use Claude Haiku 4.5 instead of Claude Fable 5?

Claude Haiku 4.5 outperforms Claude Fable 5 for Classification, Extraction. It costs $1.00/$5.00 per million tokens (input/output).

Is Claude Fable 5 cheaper than Claude Haiku 4.5?

Claude Fable 5 input costs $10.00/MTok, which is 900% more than Claude Haiku 4.5 at $1.00/MTok.

What are the context window sizes for Claude Haiku 4.5 and Claude Fable 5?

Claude Haiku 4.5 has a 200K token context window. Claude Fable 5 has a 1,000K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.

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