How much does GPT-5 mini cost through Final Router?

$0.25 per million input tokens and $2 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 GPT-5 mini train on my data?

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

How do I call GPT-5 mini?

Point any OpenAI-compatible client at https://finalrouter.com/api/v1 with your Final Router key and set model to "openai/gpt-5-mini". Your existing code does not change.

OpenAI · model

GPT-5 mini

Fast, Cheap, Classification. Called through Final Router's one OpenAI-compatible endpoint at OpenAI's list price, with no markup on tokens.

Model id: openai/gpt-5-mini

Input price$0.25per 1M tokens

Output price$2per 1M tokens

Context window400Ktokens

Typical speed380msmedian

Quality score82/100composite

ProviderOpenAIprocessed in US

Cached input$0.03per 1M, cache read

Cache writeIncludedautomatic, no write fee

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

Call GPT-5 mini in one line

GPT-5 mini 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 GPT-5 mini

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="openai/gpt-5-mini",
    messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)

Data & residency

We call api.openai.com, which is served from the United States. They sell EU data residency on other endpoints; we are not on one, so this says what happens to your request rather than what the company offers.

Training: not used to train the model. Retention: Up to 30 days for abuse monitoring; zero-retention available on request.

OpenAI's policy, read 2026-08-21 →

Route it, don't pin it

Name GPT-5 mini 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

GPT-5 mini FAQ

How much does GPT-5 mini cost through Final Router?: $0.25 per million input tokens and $2 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 GPT-5 mini's context window?: 400,000 tokens.
Does GPT-5 mini train on my data?: No. On the endpoint Final Router calls, OpenAI does not train on your prompts. Data is processed in US.
How do I call GPT-5 mini?: Point any OpenAI-compatible client at https://finalrouter.com/api/v1 with your Final Router key and set model to "openai/gpt-5-mini". Your existing code does not change.

Compare with

All comparisons

GPT-5 mini vs Muse Spark 1.1 GPT-5 mini vs Claude Haiku 4.5 GPT-5 mini vs Mistral Large GPT-5 mini vs DeepSeek V4 Flash

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

Mistral LargeMistral

$0.5 in$1.5 out262K ctx

European hosting · Function calling

DeepSeek V4 FlashDeepSeek

$0.22 in$0.66 out1M ctx

Cheapest · Huge context · Tool use

gpt-5-miniLatency and quality are seed figures used for routing order, not billing. Prices are what you are charged.