lmprices

GoogleGemini 3.5 Flash API pricing

Gemini 3.5 Flash costs $1.50 per 1M input tokens and $9.00 per 1M output tokens on Google's API, since .

Current price

Rates in effect since (launch price). Every price links to its source.

Input
$1.50
Output
$9.00
Blended 3:1
$3.375
Gemini 3.5 Flash current rates per 1M tokens
RatePer 1M tokens
Standard
Input$1.50
Cached input$0.15
Output$9.00
Batch
Input$0.75
Cached input$0.075
Output$4.50

Launch price

Gemini 3.5 Flash launched at this price on .

Input
$1.50
Output
$9.00
Blended 3:1
$3.375

Every price event

1 verified event, newest first. No price moves. Documented since .

  1. Launch price ·

    Rates from May 19, 2026
    RatePer 1M tokens
    Standard
    Input$1.50
    Cached input$0.15
    Output$9.00
    Batch
    Input$0.75
    Cached input$0.075
    Output$4.50

    Launch-week capture. Output price includes thinking tokens.

    • Price: Archived page (ai.google.dev, captured May 21, 2026)
      quote
      Gemini 3.5 Flash | gemini-3.5-flash | Input price: $1.50 | Output price (including thinking tokens): $9.00 | Context caching price: $0.15 | Batch Input price: $0.75 | Batch Output price: $4.50 | Batch Context caching price: $0.075
    • Date: Changelog (ai.google.dev)
      quote
      May 19, 2026: Released gemini-3.5-flash, the generally available (GA) version of Gemini 3.5 Flash, our most intelligent model for sustained frontier performance on agentic and coding tasks. This is now the model behind gemini-flash-latest.

Gaps in this history

Billing for requests to gemini-3.5-flash after 2026-10-08, when they are routed to gemini-3.6-flash, is not documented. Audio-specific and storage prices not recorded.

API ids

Checked .