ClaudevsGPT

Claude Fable 5 vs GPT 5.2 Pro

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

Pricing

Side-by-side pricing

Claude Fable 5

Flagship

GPT 5.2 Pro

Flagship
Input $/MTok
$10.00
$21.00
Output $/MTok
$50.00
$168.00
Cache discount
90% off
0% off
Context
1,000K
272K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
96
vs
0
Code Review
95
vs
0
Summarization
90
vs
0
Q&A
88
vs
0
Extraction
85
vs
0
Reasoning
98
vs
0
Classification
82
vs
0
Creative Writing
95
vs
0
Claude Fable 5
GPT 5.2 Pro

Guidance

When to use Claude Fable 5 vs GPT 5.2 Pro

Choose Claude Fable 5 when...

  • -Cost matters: 52% cheaper on input tokens
  • -You need a larger context window (1,000K vs 272K)

Choose GPT 5.2 Pro when...

  • 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 Fable 5
GPT 5.2 Pro
100K tokens
$2.20Cheaper
$6.51
1M tokens
$22.00Cheaper
$65.10
10M tokens
$220.00Cheaper
$651.00

FAQ

When should I use Claude Fable 5 instead of GPT 5.2 Pro?

Claude Fable 5 and GPT 5.2 Pro perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is GPT 5.2 Pro cheaper than Claude Fable 5?

GPT 5.2 Pro input costs $21.00/MTok, which is 110% more than Claude Fable 5 at $10.00/MTok.

What are the context window sizes for Claude Fable 5 and GPT 5.2 Pro?

Claude Fable 5 has a 1,000K token context window. GPT 5.2 Pro has a 272K token context window.

Track your real costs

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