Estimate Your Monthly Cost

Enter your expected monthly usage:

Estimated Monthly Cost —
Estimated Annual Cost —

Flash-Lite (Paid)

  • Rates verified 2026-10-20 against https://ai.google.dev/gemini-api/docs/pricing.
  • Standard paid tier rates shown for text/image/video tokens unless otherwise noted by Google.
  • Batch API and Flex pricing are available at lower rates for supported models.
  • Context caching storage is billed separately per 1M tokens per hour.

Flash (Paid)

  • Standard paid-tier rates for text/image/video input, verified 2026-10-20 against Google's Gemini API pricing page (https://ai.google.dev/gemini-api/docs/pricing).
  • Output prices include thinking tokens.
  • Gemini 3.8 Flash and 3.6 Flash rates are promotional through December 31, 2026 and double on January 1, 2027 ($1.50 input / $7.50 output / $0.15 cached).
  • Batch and Flex processing are priced at 50% of standard rates; Priority inference costs more.

Pro (Paid)

  • Rates verified 2026-10-20 against https://ai.google.dev/gemini-api/docs/pricing. Gemini 3.1 Pro Preview has no free tier.
  • Rates without contextWindow apply to prompts over 200,000 tokens.
  • Output prices include thinking tokens.
  • Batch API and Flex pricing are available at lower rates for supported models.
  • Context caching storage is billed separately per 1M tokens per hour.
  • Gemini 4 Argon rates are promotional through November 30, 2026 and double on December 1, 2026 ($4.00 input / $20.00 output / $0.20 cached); Argon is not available on the Free tier.

Real-World Google Gemini API Cost Examples

Individual Developer (Free Tier)

$0

$0/month

Solo developer prototyping or building a low-traffic application using the Gemini API Free tier via AI Studio, staying within free-tier rate limits.

CURRENT TIER DATA

Production App — Flash Model

$~$15.50/month ($3.00 input + $12.50 output for 10M input and 5M output tokens, at the stated rates)

~$15.50/month ($3.00 input + $12.50 output for 10M input and 5M output tokens, at the stated rates)

A production application processing approximately 10 million input tokens and 5 million output tokens per month using the Flash (Paid) tier via OpenRouter at median provider rates.

OpenRouter pricing data, 2026-07-16

Production App — Pro Model

$~$62.50/month ($12.50 input + $50.00 output for 10M input and 5M output tokens)

~$62.50/month ($12.50 input + $50.00 output for 10M input and 5M output tokens)

A production application processing approximately 10 million input tokens and 5 million output tokens per month using the Pro (Paid) tier at current OpenRouter rates for Gemini 2.5 Pro.

OpenRouter pricing data, 2026-07-16

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Frequently Asked Questions

01 How accurate is this Google Gemini API pricing calculator?

This calculator uses official Google Gemini API pricing data verified as of 2026-10-20. Hidden cost estimates are based on 3 verified cost categories from real user reports. Actual costs may vary based on negotiated discounts, specific feature requirements, and implementation complexity.

02 What hidden costs should I include in my Google Gemini API budget?

Our calculator includes 1 verified hidden cost categories for Google Gemini API: Platform Migration Costs. Toggle each to see how they affect your total cost.

03 Should I choose monthly or annual billing for Google Gemini API?

Compare the published annual total with twelve monthly payments when both are available. An annual commitment may reduce flexibility; confirm cancellation terms and whether the quoted plan fits your needs.

04 How do I know which Google Gemini API tier I need?

Start with your must-have features. Google Gemini API offers 4 tiers ranging from $0 to $18/per million tokens. Entry tiers work for basic needs, while enterprise tiers add advanced security, customization, and support.

05 Can I negotiate Google Gemini API pricing below calculator estimates?

Negotiated pricing depends on the vendor, plan and contract. We do not assume a discount in this estimate. See our negotiation guide for tactics.