Gemini Token Calculator
Estimate Gemini token spend, compare API in One routes with Google official pricing, and generate OpenAI-compatible cURL, JavaScript, and Python examples.
01 / Input
Token workload
02 / Scenario
Monthly workload
Route comparison
API in One vs official pricing
Price boundary
Compare only routes that actually exist
API in One rows use the three live Gemini chat routes and their current token charges. Google rows are official reference prices, not a claim that other provider models are available through API in One.
Gemini 2.5 Pro official pricing changes above 200K prompt tokens. Automatic mode applies that tier per request; a manual override supports controlled planning.
FAQ
Gemini token pricing questions
Where do the Gemini prices come from?
Google rates link to the official Gemini API pricing page. API in One rates match the live Gemini route configuration. Every source has a visible verification date.
Does the calculator use Google's tokenizer?
Text mode is a local planning estimate. Import Gemini usageMetadata or enter exact token counts when you need provider-reported numbers.
How is Gemini 2.5 Pro long-context pricing handled?
In automatic mode, prompt input above 200K tokens per request uses the published higher input, cached-input, and output rates.
Does API in One receive the prompt I paste here?
No. Text and supported files are processed in the browser for this estimate and are not sent to an API.