Anthropic
vs
Open AI

Compare AI models side by side

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

Anthropic logo
Claude Sonnet 4.6

Cost: $0

Knowledge cutoff: 2025-08-31 · Context window: 1,000,000 tokens · Reasoning model

Input Price

$3 / 1M tokens

Output Price

$15 / 1M tokens

Context Window

1,000,000 tokens

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

Cost: $0

Knowledge cutoff: 2025-08-31 · Context window: 400,000 tokens · Reasoning model

Input Price

$0.75 / 1M tokens

Output Price

$4.5 / 1M tokens

Context Window

400,000 tokens

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