AI infrastructure from Spain:LLM API, sandboxes anddedicated GPUs, pay as you go.

Call open-source models through an API, run coding agents in a cloud sandbox, or reserve an NVIDIA B200 of your own.Sandboxes and GPUs in Spain, billed in euros, no contracts.

Activate with a card and you are up in under a minute. Use it for three minutes, pay for three minutes.

  • cert.ISO 27001 and ENS Medium
  • data centreSpain
  • invoicein EUR
  • computeNVIDIA B200

products

Three products, one account: which one do you need?

Each one solves a different problem. You can use one, two or all three from the same account, billed in euros.

Token Factory

An LLM API your app calls

For adding AI answers, summaries, document reading or text generation to a product you already have. Works with the OpenAI and Anthropic SDKs: change the base URL and the key.

Real example

a clinic answering appointment questions at any hour.

  • The answer arrives piece by piece as it is generated, without waiting for it to finish.
  • Open-weight models from several providers, all behind the same API key.
  • You top up your balance in advance and it is drawn down by actual usage. No fees, no surprises.
from 0.06 €/ M input tokenscredit from 10 €

Sandbox

A cloud computer with Claude Code ready

For building and testing with AI agents without installing anything on your laptop. It pauses itself when you stop and keeps your files.

Real example

a team building and testing without depending on its own hardware.

  • Both coding agents come installed and set up against Token Factory. You pick one when you create the Sandbox.
  • Connect from your terminal over SSH with your key, with nothing else to install on your machine.
  • When you are not using it, it suspends itself and stops counting active hours. When you come back, it starts in seconds with your files where you left them.
from 0.15 €/ active hour+ volume from €5/month

Dedicated GPU

An NVIDIA B200 of your own

For training, fine-tuning or running your own models. A hardware-isolated slice or the whole 180 GB card, shared with nobody, by the hour or by the month.

Real example

a company training its own model on private data.

  • MIG splits the B200 into hardware-isolated slices of 23, 45 or 90 GB. You rent a slice or the whole card.
  • NVIDIA's most advanced compute chip. It is the engine that runs the AI.
  • The GPU's memory: the more there is, the larger the model that fits. FP4 is the number format that lets it be served faster.
from 1.10 €/ hourmonthly reserved −10%

The path

From your first call to production in an afternoon

If your code already talks to OpenAI or Anthropic, it already talks to GPU Flow. Then you grow without switching providers: one account covers all three stages.

  1. 01

    Test the idea

    Token Factory

    Call a model from your app through the API and test the idea with the welcome credit.

  2. 02

    Build it

    Sandbox

    A persistent environment to build in, with agent templates ready to go.

  3. 03

    Take it to production

    Dedicated GPU

    Dedicated power for your real workload, by the month or by the year.

Three lines change.

Python

from openai import OpenAI
client = OpenAI(base_url="https://api.gpuflow.ai/v1", api_key="GPUFLOW_API_KEY")
r = client.chat.completions.create(
    model="glm-5.3-nvfp4",
    messages=[{"role": "user", "content": "Hello"}],
)

use cases

What customers build with it

Answering customers around the clock

Clinics, shops and training centres answer questions about hours, bookings and orders at any time.

500 answers a day: about 1.43 € a month

Reading invoices and paperwork

Accountants and back offices hand it a scan and get the data back in order.

1,000 invoices: about 0.49 €

Writing in the brand's voice

Marketing and retail teams generate product descriptions, emails and posts that sound like them.

300 descriptions: about 0.03 €

Building with agents, without a server room

Developers and startups run Claude Code in a Sandbox and ship from there.

from 0.60 € an afternoon

Two questions

Which one do I need?

Whether you run infrastructure for a living or have never touched AI, two answers tell you where to start.

1. What do you want to achieve?
2. How are you with the technical side?

infrastructure

Why teams in Europe choose GPU Flow

Six reasons to bring your AI here: what hardware runs it, where it sits, how it connects, where your data lives, which certifications it holds and how it is invoiced.

01Dedicated NVIDIA B200

Dedicated NVIDIA B200, not shared

Current-generation accelerators on bare metal. No shared tenant, so performance does not depend on your neighbours.

02Machines in Spain

Machines in Spain, under GDPR

Sandbox and dedicated GPU run in a data centre on Spanish soil. Your prompts are never used to train any model.

03RDMA internal network

RDMA internal network

Low latency between nodes for multi-GPU and sustained throughput in production.

04DDN EXAScaler

DDN EXAScaler

High-speed parallel storage for datasets, checkpoints and persistent volumes.

05ISO 27001 and ENS Medium

ISO 27001 and ENS Medium

Operational certifications you can download. Standard data processing agreement ready to sign.

06Invoice in euros

Invoice in euros, with VAT

Deductible for EU companies and freelancers, valid for intra-EU reverse charge. No dollar conversion, no month-end surprises.

models

Open-source models, ready to call

Qwen, GLM, Gemma, Nemotron, ALIA, Whisper, Qwen3-TTS and ACE-Step. One API key for all of them.

Support

People on support

You send an email and a person replies within four working hours, in Spanish or English. For critical incidents, a call with an engineer.

Write to us
Machines in Spain
A data centre on Spanish soil.
Invoiced in euros
Ready for your accountant, with VAT included and no currency conversion.
ISO 27001 and ENS Media
Downloadable certifications and a DPA ready to sign.
Human support
In Spanish and English, in under 4 working hours.

frequently asked questions

Questions before you start

Do I need a developer to use GPU Flow?

To connect the API to your own website or app, yes, for about an afternoon. You create a Sandbox from the dashboard in a few clicks; to get in you only need a terminal with SSH.

Is it compatible with OpenAI and Anthropic?

Yes. The API exposes the same endpoints; you change the base URL and the key and your code stays the same.

How does the welcome credit work?

Every new account gets welcome credit to spend on Token Factory. You activate it with a card, which is required to sign up; the €1 verification charge is refunded.

How do I pay, and do I get an invoice?

You top up credit in euros by card and it is drawn down by use. Every top-up comes with a Spanish invoice, valid across the EU. Prices include VAT; customers in the Canary Islands, Ceuta, Melilla or outside the EU, and EU businesses with a valid VAT number, pay without VAT.

What happens if my credit runs out?

The Token Factory API stops answering, with a 402 error, until you top up. Nothing is charged to your card automatically.

What happens if the environment goes idle?

We only charge for the hours the sandbox is active. After the idle time you configured (from 10 min to 4 h, or manual stop only) with no SSH activity or user processes, it suspends automatically and stops billing compute. Your persistent volume survives intact and is available again in 5-8 seconds on reconnect.

Can I cancel?

There is nothing to cancel: no subscription, no commitment. Stop using it and you stop paying, except for any disk or GPU reservation you keep. If you delete a Sandbox, its disk is not erased: it stays so you can reuse it in another Sandbox, and it is billed while it exists.

Do you have a public SLA?

Yes, we publish real-time status at gpuflow.ai/status. The contractual SLA with support response times is agreed in enterprise plans.

What does it mean that GPU Flow is in beta?

That the service is already in production and billed on real usage, but we are still polishing the platform: there may be the occasional interruption and the interface changes from one week to the next. Prices and your balance do not change because of the beta. The state of every service is published on the status page, and if something breaks you write to us at [email protected] and we sort it out.

Your AI infrastructure, sovereign and in euros.

Create your account, activate your welcome credit and make your first call in under a minute.

Building a European startup? Apply for up to €5,000 in credits