Gemini 2.5 Flash pricing
Gemini 2.5 Flash API cost from Google — $0.300 per 1M input tokens and $2.50 per 1M output tokens. Estimate your real monthly bill below, then compare it against every other model.
Balanced 1M context · all prices USD per 1M tokens, list price last verified 2026-06-27.
Gemini 2.5 Flash capabilities & limits
Representative specs for this tier — confirm exact limits in the Google docs.
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Call Gemini 2.5 Flash from your code
The exact model string and endpoint to use. Works with the OpenAI SDK — just point base_url at the URL below.
gemini-2.5-flashhttps://generativelanguage.googleapis.com/v1betaGEMINI_API_KEYcurl "https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent" \
-H "x-goog-api-key: $GEMINI_API_KEY" \
-H "content-type: application/json" \
-d '{
"contents": [{"parts": [{"text": "Hello"}]}]
}'Model strings follow each provider's naming convention; confirm the current id in the Google docs before relying on it.
What a Gemini 2.5 Flash API call actually costs
Blended input + output cost at Gemini 2.5 Flash's list rates — useful yardsticks before you commit to volume.
Gemini 2.5 Flash cost calculator
Enter your monthly volume to estimate the Gemini 2.5 Flash bill. Runs entirely in your browser.
Google models — Gemini 2.5 Flash in context
How Gemini 2.5 Flash prices against its siblings. Cheapest reference cost first.
| Model | Input /1M | Output /1M | Cost / call* | Context | Type |
|---|---|---|---|---|---|
| Gemini 1.5 Flash-8B Cheapest capable model | $0.037 | $0.150 | $0.0002 | 1M | Fast / cheap |
| Gemini 2.0 Flash | $0.100 | $0.400 | $0.0005 | 1M | Fast / cheap |
| Gemini 2.5 Flash | $0.300 | $2.50 | $0.0028 | 1M | Balanced |
| Gemini 2.5 Pro 1M context (≤200k tier) | $1.25 | $10.00 | $0.011 | 1M | Flagship |
*Reference cost of one call with 1,000 input + 1,000 output tokens — a neutral yardstick. Use the calculator for your real usage. Cheapest row highlighted.
How Gemini 2.5 Flash pricing works
Gemini 2.5 Flash is billed per token: a lower input price of $0.300 per million tokens for everything you send, and a higher output price of $2.50 per million for everything the model generates. To turn that into a real Gemini 2.5 Flash bill, multiply by your monthly request volume and average prompt/response length — the calculator above does exactly that.
Gemini 2.5 Flash does not list a separate cached-input rate, so every input token bills at $0.300 per million. If repeated context is a big part of your prompts, a model with prompt caching may end up cheaper in practice.
List prices move fast — always confirm the current numbers on the official Google pricing page before relying on them for budgeting.
Gemini 2.5 Flash pricing FAQ
How much does the Gemini 2.5 Flash API cost?
Gemini 2.5 Flash costs $0.300 per 1M input tokens and $2.50 per 1M output tokens. A typical 3K-input / 500-output call works out to about $0.0022.
What is Gemini 2.5 Flash's context window?
Gemini 2.5 Flash has a 1M-token context window. Tokens you put in the prompt are billed at the $0.300 per 1M input rate.
Does Gemini 2.5 Flash charge extra for output tokens?
Yes. Output (generated) tokens cost $2.50 per 1M, versus $0.300 per 1M for input — about 8.3× more, which is normal for LLM APIs.
Is there a cheaper alternative to Gemini 2.5 Flash?
In the same balanced tier, Command R (Cohere) is cheaper at $0.150 in / $0.600 out. The overall cheapest model on the market is Gemini 1.5 Flash-8B.