Claude Sonnet 5.5 vs Kimi K3.1 Pro Pricing Comparison

Head-to-head token pricing, context window limits, and blended inference cost comparison between Claude Sonnet 5.5 (Anthropic) and Kimi K3.1 Pro (Moonshot).

Direct Answer Summary (3:1 Blended Cost)

Both models offer identical blended pricing at $4.0000/1M tokens. Claude Sonnet 5.5 has a context window of 1000k tokens, while Kimi K3.1 Pro provides 1049k tokens.

Anthropic

Claude Sonnet 5.5

Input / 1M
$2.0000
Output / 1M
$10.0000
3:1 Blended / 1M
$4.0000
Context Window
1000k tokens
Moonshot

Kimi K3.1 Pro

Input / 1M
$2.0000
Output / 1M
$10.0000
3:1 Blended / 1M
$4.0000
Context Window
1049k tokens
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