Model comparison · updated 2026-07-28

GPT-5.5 ProvsClaude Fable 5

Side-by-side pricing for1 million tokens

Price comparison

GPT-5.5 ProClaude Fable 5Verdict
ProviderOpenAIAnthropic--
Context window400K1M--
Input / 1M tokens$30$10Claude Fable 5 is 3x cheaper
Output / 1M tokens$180$50Claude Fable 5 is 3.6x cheaper
Output:input ratio6x5x--
Tierfrontierfrontier--

What does $10 buy?

$10 of input

GPT-5.5 Pro

333,333 tokens

Claude Fable 5

1,000,000 tokens

Claude Fable 5 gives you 3x more input for the same budget.

$10 of output

GPT-5.5 Pro

55,556 tokens

Claude Fable 5

200,000 tokens

Claude Fable 5 gives you 3.6x more output for the same budget.

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