Gemini 3.1 Flash Image Preview - Inconsistent Pricing Between AI Studio and API Docs

I’ve noticed a significant pricing discrepancy for the gemini-3.1-flash-image-previewmodel between different official sources.

Current Situation:

Source Input (per 1M tokens) Text Output (per 1M tokens) Image Output (per 1M tokens)
AI Studio $0.50 $3.00 $60.00
API Documentation $0.25 $1.50 $60.00

Links:

AI Studio: https://aistudio.google.com/

API Docs: https://ai.google.dev/gemini-api/docs/pricing

Which pricing is correct and should be used for billing?

This is causing confusion for developers trying to estimate costs accurately. An official clarification would be greatly appreciated.