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Gemini 3.5 Flash API pricing on OpenRouter

Every OpenRouter Gemini 3.5 Flash rate we track, compared against 3 providers serving the same model.

Input from /1M
$1.50
Output /1M
$9.00
Price rank
#2 of 3
Last updated
August 4, 2026

The cheapest Gemini 3.5 Flash input price we currently track is $0.750/1M on Google Cloud.

OpenRouter Gemini 3.5 Flash rates

Prices per 1M tokens. Batch and cached-input rates are shown where the provider publishes them.

OpenRouter Gemini 3.5 Flash pricing by mode
ModeInputOutput
Standard$1.50/1M$9.00/1M

About Gemini 3.5 Flash

Creator
Google
Modalities
text
Full Gemini 3.5 Flash details and every provider →

Gemini 3.5 Flash on other providers

About OpenRouter

OpenRouter provides a unified API for accessing hundreds of AI models from multiple providers. It aggregates models from OpenAI, Anthropic, Google, Meta, Mistral, and many others, offering a single endpoint with automatic fallback routing and provider optimization.

Frequently Asked Questions

How much does Gemini 3.5 Flash cost on OpenRouter?

OpenRouter serves Gemini 3.5 Flash from $1.50 per 1M input tokens, across 1 tracked pricing mode. Prices are collected daily — see the table above for current input, output, and cached-input rates.

Is OpenRouter the cheapest way to run Gemini 3.5 Flash?

OpenRouter ranks #2 of 3 providers we track serving Gemini 3.5 Flash. The cheapest input price right now is on Google Cloud. Price is only one factor — throughput, latency, and context limits differ between providers.

Does OpenRouter offer batch or cached pricing for Gemini 3.5 Flash?

We track 1 Gemini 3.5 Flash offering from OpenRouter. Batch and cached-input rates appear in the table above when the provider publishes them; blank cells mean we have no current figure for that mode.