OpenAI: GPT-5.4 Nano

2 providers live

openai/gpt-5.4-nano

→

2 live providers
100% uptime
0.69 s first token
193 tok/s output

GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency use cases such as classification, data extraction, ranking, and sub-agent execution. The model prioritizes responsiveness and efficiency over deep reasoning, making it ideal for pipelines that require fast, reliable outputs at scale. GPT-5.4 nano is well suited for background tasks, real-time systems, and distributed agent architectures where minimizing cost and latency is essential.

Context: 400K; tokens
Max output: 128K; tokens
Input: $0.20; per million tokens
Output: $1.25; per million tokens

Providers

Ranked by price and speed. Requests go to the best healthy provider, then fail over down the list.Benchmarks

Live providers of GPT-5.4 Nano, in the router's order
Who answers now	Input per 1M	First token
llm.buzzpicked	$0.20	1.20 s
OpenAI	$0.20	0.69 s

llm.buzz answers now: first in the router's order.

First token is the 24-hour median. If the pick fails, the next one answers at its own price.

#	Provider	Input	Output	Cache read	Latency	Throughput	Uptime (3d)
1	llm.buzzAutoNon-EU Data policy not declared	$0.20	$1.25	$0.02	1.20 s	193 tok/s	84.2%
2	OpenAINon-EU Data policy not declared	$0.20	$1.25	$0.02	0.69 s	161 tok/s	100%

Want to serve this model?Become a provider

Price history

No price changes since Oct 22, 2026.

OpenAI$0.20 in, $1.25 out

Performance

Last 24 hours, from llm.buzz's test requests

Throughput (tok/s)

llm.buzz193 tok/s
OpenAI161 tok/s

Data table

Provider	From (UTC)	p50	p90	p99
llm.buzz	Oct 26, 08:00	161 tok/s	161 tok/s	161 tok/s
llm.buzz	Oct 26, 12:00	193 tok/s	193 tok/s	193 tok/s
llm.buzz	Oct 26, 17:00	193 tok/s	193 tok/s	193 tok/s
llm.buzz	Oct 26, 22:00	232 tok/s	232 tok/s	232 tok/s
llm.buzz	Oct 27, 02:00	193 tok/s	193 tok/s	193 tok/s
llm.buzz	Last 24 hours	193 tok/s	161 tok/s	161 tok/s
OpenAI	Oct 26, 07:00	161 tok/s	161 tok/s	161 tok/s
OpenAI	Oct 26, 11:00	193 tok/s	193 tok/s	193 tok/s
OpenAI	Oct 26, 16:00	112 tok/s	112 tok/s	112 tok/s
OpenAI	Oct 26, 20:00	134 tok/s	134 tok/s	134 tok/s
OpenAI	Oct 27, 00:00	161 tok/s	161 tok/s	161 tok/s
OpenAI	Oct 27, 04:00	161 tok/s	161 tok/s	161 tok/s
OpenAI	Last 24 hours	161 tok/s	112 tok/s	112 tok/s

Latency (time to first token)

llm.buzz1.20 s
OpenAI0.69 s

Data table

Provider	From (UTC)	p50	p90	p99
llm.buzz	Oct 26, 08:00	1.20 s	1.20 s	1.20 s
llm.buzz	Oct 26, 12:00	1.44 s	1.44 s	1.44 s
llm.buzz	Oct 26, 17:00	1.20 s	1.20 s	1.20 s
llm.buzz	Oct 26, 22:00	1.00 s	1.00 s	1.00 s
llm.buzz	Oct 27, 02:00	1.20 s	1.20 s	1.20 s
llm.buzz	Last 24 hours	1.20 s	1.44 s	1.44 s
OpenAI	Oct 26, 07:00	0.58 s	0.58 s	0.58 s
OpenAI	Oct 26, 11:00	0.69 s	0.69 s	0.69 s
OpenAI	Oct 26, 16:00	1.44 s	1.44 s	1.44 s
OpenAI	Oct 26, 20:00	1.00 s	1.00 s	1.00 s
OpenAI	Oct 27, 00:00	0.69 s	0.69 s	0.69 s
OpenAI	Oct 27, 04:00	0.83 s	0.83 s	0.83 s
OpenAI	Last 24 hours	0.69 s	1.44 s	1.44 s

Uptime

Last 72 hours, by hour

Best provider 100%

This model

llm.buzz

OpenAI

Up: 95% or more served
Degraded: 85% to 95%
Down: below 85%
No data
From llm.buzz's test requests

Questions

How much does OpenAI: GPT-5.4 Nano cost?

OpenAI: GPT-5.4 Nano costs $0.20 per million input tokens and $1.25 per million output tokens at llm.buzz, the provider requests go to first, with cache reads at $0.02 per million tokens.

Do providers train on my prompts?

Each provider declares it, and the table above shows every declaration. You can limit a request to providers that keep nothing, or to providers in the EU.

Can I serve OpenAI: GPT-5.4 Nano myself?

Yes. Apply as a provider, add your endpoint and list this model at your price. It goes live once the automated check passes.

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Call it

import os
from openai import OpenAI

client = OpenAI(
    base_url="https://api.llm.buzz/api/v1",
    api_key=os.environ["LLM_BUZZ_KEY"],
)
reply = client.chat.completions.create(
    model="openai/gpt-5.4-nano",
    messages=[{"role": "user", "content": "Hello"}],
)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.llm.buzz/api/v1",
  apiKey: process.env.LLM_BUZZ_KEY,
});
const reply = await client.chat.completions.create({
  model: "openai/gpt-5.4-nano",
  messages: [{ role: "user", content: "Hello" }],
});

curl https://api.llm.buzz/api/v1/chat/completions \
  -H "Authorization: Bearer $LLM_BUZZ_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "openai/gpt-5.4-nano",
       "messages": [{"role": "user", "content": "Hello"}]}'

Endpoints

POST /api/v1/chat/completionsPOST /api/v1/responsesPOST /api/v1/messages

Authentication

Send your llm.buzz key as a Bearer token: Authorization: Bearer $LLM_BUZZ_KEY. Create keys in the console. The same key calls every model; each request pays the price of the provider that answered it.

More in Authentication and the API reference.

Call OpenAI: GPT-5.4 Nano with one keyEach request pays the price of the provider that answered it.

Get API key