GPT-5.4 nano API pricing

Prices last checked: 28 Oct 2026 LLMs
$ per 1M input $0.200
$ per 1M output $1.25

Standard tier, blended at 3:1 input to output: $0.463 per million tokens.

OpenAI charges $0.200 per million input tokens and $1.25 per million output tokens for GPT-5.4 nano. It is sold in 4 forms, from $0.231 to $0.463 blended; the table below shows what each costs against standard. 6 of the models nearest it in price are cheaper on a blended basis.

$0.200
$/1M input
$1.25
$/1M output
$0.020
$/1M cached in
272,000
Context window
$34.50
1k req/day, monthly

Every tier of GPT-5.4 nano

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

GPT-5.4 nano tiers, snapshots and resellers, checked 28 Oct 2026
Source
Standard Standard gpt-5.4-nano OpenAI $0.200 $1.25 $0.020 $0.463 Standard ↗
Standard gpt-5.4-nano OpenRouter $0.200 $1.25 $0.020 $0.463 Same ↗
Dated snapshot gpt-5.4-nano-2026-03-17 OpenAI $0.200 $1.25 $0.020 $0.463 Same ↗
Batch gpt-5.4-nano:batch OpenRouter $0.100 $0.625 $0.010 $0.231 −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-5.4-nano: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-5.4-nano-2026-03-17) 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-5.4-nano 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-5.4 nano against comparable models, checked 28 Oct 2026
Source
GPT-5.4 nano This model OpenAI $0.200 $1.25 272,000 $0.463 ↗

Prices last checked: . Methodology

Questions

How much does GPT-5.4 nano cost per million tokens?

$0.200 per million input tokens and $1.25 per million output tokens, with cached input at $0.020. At a 3:1 input to output mix that blends to $0.463. Checked 28 Oct 2026.

How much cheaper is GPT-5.4 nano through the Batch API?

gpt-5.4-nano:batch costs $0.100 in and $0.625 out per million tokens, 50% cheaper than standard, in exchange for asynchronous delivery.

What would GPT-5.4 nano cost for a real workload?

A thousand requests a day at 2,000 input and 600 output tokens each comes to $34.50 a month on the standard tier, or $17.25 through batch.

What is the context window for GPT-5.4 nano?

272,000 tokens of input, with up to 128,000 tokens of output.

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