GPT-4.1 mini API pricing

Prices last checked: 28 Oct 2026 LLMs
$ per 1M input $0.400
$ per 1M output $1.60

Standard tier, blended at 3:1 input to output: $0.700 per million tokens.

OpenAI charges $0.400 per million input tokens and $1.60 per million output tokens for GPT-4.1 mini. It is sold in 4 forms, from $0.350 to $0.700 blended; the table below shows what each costs against standard. 4 of the models nearest it in price are cheaper on a blended basis.

$0.400
$/1M input
$1.60
$/1M output
$0.100
$/1M cached in
1,047,576
Context window
$52.80
1k req/day, monthly

Every tier of GPT-4.1 mini

Blended at 3:1 input to output. The last column compares each against the standard tier.

GPT-4.1 mini tiers, snapshots and resellers, checked 28 Oct 2026
Source
Standard Standard gpt-4.1-mini OpenAI $0.400 $1.60 $0.100 $0.700 Standard ↗
Standard gpt-4.1-mini OpenRouter $0.400 $1.60 $0.100 $0.700 Same ↗
Dated snapshot gpt-4.1-mini-2025-04-14 OpenAI $0.400 $1.60 $0.100 $0.700 Same ↗
Batch gpt-4.1-mini:batch OpenRouter $0.200 $0.800 $0.050 $0.350 −50% ↗

Prices last checked: . Methodology

Which tier to use

What each costs against standard in our data, and the job it is for.

Batch

The batch tier (gpt-4.1-mini:batch) is 50% cheaper than standard. Batch requests are queued and answered asynchronously, typically within 24 hours, so it suits work nobody is waiting on: evaluations, back-fills, bulk classification and tagging. Anything a user is waiting on belongs on the standard tier.

Dated snapshots

One dated snapshot (gpt-4.1-mini-2025-04-14) is listed at the same price as standard. A snapshot pins the model to one release, while the undated name moves to newer releases when the vendor updates it. Pin a snapshot in production when your prompts depend on exact output; use the undated name to pick up improvements automatically.

Direct or through a reseller

Through OpenRouter, gpt-4.1-mini is the same price as buying direct. A reseller is worth it for one bill across vendors and automatic fallback; buy direct for the vendor's own batch, caching and rate-limit terms.

Against the models nearest in price

Standard tiers, blended at a 3:1 input to output ratio.

Calculator →
GPT-4.1 mini against comparable models, checked 28 Oct 2026
Source
GPT-4.1 mini This model OpenAI $0.400 $1.60 1,047,576 $0.700 ↗

Prices last checked: . Methodology

Questions

How much does GPT-4.1 mini cost per million tokens?

$0.400 per million input tokens and $1.60 per million output tokens, with cached input at $0.100. At a 3:1 input to output mix that blends to $0.700. Checked 28 Oct 2026.

How much cheaper is GPT-4.1 mini through the Batch API?

gpt-4.1-mini:batch costs $0.200 in and $0.800 out per million tokens, 50% cheaper than standard, in exchange for asynchronous delivery.

What would GPT-4.1 mini cost for a real workload?

A thousand requests a day at 2,000 input and 600 output tokens each comes to $52.80 a month on the standard tier, or $26.40 through batch.

What is the context window for GPT-4.1 mini?

1,047,576 tokens of input, with up to 32,768 tokens of output.

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