Google API pricing
Google Gemini API: pricing and cost estimation
A practical guide to estimating Gemini API spend across text, multimodal prompts, cached context and grounding.
Start with a transparent estimate
Estimate input and expected output tokens in the PromptCost calculator. Then confirm the exact model, token direction, cache policy, batch discount and tool charges with the provider.
What to include in the budget
- Input tokens, including system instructions and retrieved context.
- Output tokens, which often dominate generation-heavy workflows.
- Prompt caching, batch processing and long-context terms where available.
- Tool calls, web search, storage or other non-token charges when applicable.
- Retries, evaluation traffic and the buffer needed for production variability.
Best fit
Teams evaluating Gemini for long context, multimodal workloads or Google Cloud-adjacent systems.