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 Haiku 4.5 (latest)
Price: $3/1M tokens

Cost: $0
Anthropic

Claude Haiku 4.5 (latest)

Anthropic

Knowledge cutoff: 2025-02-28 · Context window: 200,000 tokens · Reasoning model

Input Price

$1 / 1M tokens

Output Price

$5 / 1M tokens

Context Window

200,000 tokens

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

Open AI logo
GPT-5.3 Codex Spark
Price: $7.88/1M tokens

Cost: $0
Open AI

GPT-5.3 Codex Spark

Open AI

Knowledge cutoff: 2025-08-31 · Context window: 128,000 tokens · Reasoning model

Input Price

$1.75 / 1M tokens

Output Price

$14 / 1M tokens

Context Window

128,000 tokens

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