Google Custom Search API 迁移费用计算

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Google CSE today: 100 queries/day free, then $5 per 1,000 queries, hard cap 10,000 queries/day (above the cap, queries are not served, so the Google cost stops at ~$1,485 / 30-day month). Alternatives are billed on the full monthly volume (daily × 30). Brave Search $5 / 1k requests. Exa uses the selected /search endpoint (+$1 / 1k results above 10). Tavily = 1 credit per basic search on the cheapest plan or PAYG $0.008. Firecrawl Search = 2 credits per 10 results on the cheapest plan including $5 overage packs. SerpApi = cheapest monthly plan whose search quota covers the volume (1 search per query regardless of result count). Serper = cheapest one-time credit pack amortized over min(6 months, months to use it up), 1 credit per query assumed. Scraping Google via a general scraping API such as ScraperAPI costs 25 credits per request (see the ScraperAPI calculator and web scraping API comparison). Google's own successor, Vertex AI Search, is not modeled here: its pricing depends on edition, query type and data indexing, so check Google Cloud pricing separately.

Estimates only. Official list prices as of 2026-10-30 (Asia/Shanghai); the provider's pricing page prevails. Sources: Google Custom Search JSON API overview · Brave Search API pricing · Exa pricing · Tavily API credits · Firecrawl pricing · SerpApi pricing · Serper pricing

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