How much does Gemini 2.5 Flash cost through Final Router?

$0.3 per million input tokens and $2.5 per million output tokens - the provider's own list price, with no markup on tokens. A 5.5% fee applies only when you add credits.

Does Gemini 2.5 Flash train on my data?

No. On the endpoint Final Router calls, Google does not train on your prompts. Data is processed in US.

How do I call Gemini 2.5 Flash?

Point any OpenAI-compatible client at https://finalrouter.com/api/v1 with your Final Router key and set model to "google/gemini-2.5-flash". Your existing code does not change.

Google · model

Gemini 2.5 Flash

Very fast, Long context, Summarization. Called through Final Router's one OpenAI-compatible endpoint at Google's list price, with no markup on tokens.

Model id: google/gemini-2.5-flash

Input price$0.3per 1M tokens

Output price$2.5per 1M tokens

Context window1.048576Mtokens

Typical speed310msmedian

Quality score78/100composite

ProviderGoogleprocessed in US

Verified 2026-08-21Google's own list price, with no markup on tokens - a 5.5% fee applies only when you add credits.

Call Gemini 2.5 Flash in one line

Gemini 2.5 Flash speaks through the same OpenAI-compatible endpoint as every other model. Point your existing client at Final Router, set the model id, and you also get automatic fallback, spend caps and usage tracking - none of which the provider gives you directly.

Call Gemini 2.5 Flash

from openai import OpenAI

client = OpenAI(
    api_key="fr_live_...",                     # your Final Router key
    base_url="https://finalrouter.com/api/v1"  # the only line you change
)

resp = client.chat.completions.create(
    model="google/gemini-2.5-flash",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

Data & residency

The Gemini API endpoint we call is global, which in practice means processing outside the EU. Vertex AI offers European regions; that is a different integration and not this one.

Training: not used to train the model. Retention: Paid tier is not used for training; the free tier is. Check which key you connected.

Google's policy, read 2026-08-21 →

Route it, don't pin it

Name Gemini 2.5 Flash as your first choice and let a policy fall back to another model when the provider is down - your request still gets answered, and the log shows exactly what happened.

Start free

Gemini 2.5 Flash FAQ

How much does Gemini 2.5 Flash cost through Final Router?: $0.3 per million input tokens and $2.5 per million output tokens - the provider's own list price, with no markup on tokens. A 5.5% fee applies only when you add credits.
What is Gemini 2.5 Flash's context window?: 1,048,576 tokens.
Does Gemini 2.5 Flash train on my data?: No. On the endpoint Final Router calls, Google does not train on your prompts. Data is processed in US.
How do I call Gemini 2.5 Flash?: Point any OpenAI-compatible client at https://finalrouter.com/api/v1 with your Final Router key and set model to "google/gemini-2.5-flash". Your existing code does not change.

Compare with

All comparisons

Gemini 2.5 Flash vs DeepSeek V4 Flash Gemini 2.5 Flash vs GPT-5 mini Gemini 2.5 Flash vs Muse Spark 1.1 Gemini 2.5 Flash vs Claude Haiku 4.5

DeepSeek V4 FlashDeepSeek

$0.22 in$0.66 out1M ctx

Cheapest · Huge context · Tool use

GPT-5 miniOpenAI

$0.25 in$2 out400K ctx

Fast · Cheap · Classification

Muse Spark 1.1Meta

$1.25 in$4.25 out1.048576M ctx

Coding · Huge context

Claude Haiku 4.5Anthropic

$1 in$5 out200K ctx

Fast · Cheap · High volume

gemini-2-5-flashLatency and quality are seed figures used for routing order, not billing. Prices are what you are charged.