Gemini 3.5 Flash costs $1.50 per 1M input tokens and $9 per 1M output tokens, 3x the price of Gemini 3 Flash Preview and 6x the price of Gemini 3.1 Flash-Lite (Simon Willison/Simon Willison's Weblog)

May 20, 2026 - 02:45
Updated: 3 days ago
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Pricing breakdown for Google Gemini 3.5 Flash input and output tokens.

Simon Willison / Simon Willison's Weblog:
Gemini 3.5 Flash costs $1.50 per 1M input tokens and $9 per 1M output tokens, 3x the price of Gemini 3 Flash Preview and 6x the price of Gemini 3.1 Flash-Lite  —  Today at Google I/O, Google released Gemini 3.5 Flash.  This one skipped the -preview modifier and went straight to general availability …

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Christopher Holloway

Christopher Holloway is the founder and director of Progressive Robot, a UK-based technology company. A full-stack engineer with more than two decades of experience, he works across PHP development, ecommerce, Linux infrastructure, technical SEO and AI automation, and writes here on technology, AI, hardware and software.

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