Claude Fable 5.1
vs
Claude Opus 5.5

Compare AI models side by side

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Responses to your questions will appear side by side in the chat windows below.

Claude Fable 5.1
Price: $30/1M tokens

Cost: $0

Claude Fable 5.1

Anthropic

Knowledge cutoff: 2026-06 · Context window: 1,000,000 tokens · Reasoning model

Input Price

$10 / 1M tokens

Output Price

$50 / 1M tokens

Context Window

1,000,000 tokens

Hey! I'm here and ready to chat about whatever you'd like.

Claude Opus 5.5
Price: $12/1M tokens

Cost: $0

Claude Opus 5.5

Anthropic

Knowledge cutoff: 2026-06 · Context window: 1,000,000 tokens · Reasoning model

Input Price

$4 / 1M tokens

Output Price

$20 / 1M tokens

Context Window

1,000,000 tokens

Hey! I'm here and ready to chat about whatever you'd like.