Perplexity推出“2025年回顾”工具，通过预设提示帮助用户总结年度活动，但被指内容较简单。OpenAI也推出“你的ChatGPT年度总结”功能，提供个性化年度回顾。
Openai
$17.5
Input tokens/M
$70
Output tokens/M
128
Context Length
Anthropic
$21
$105
200
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