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Chat · UTTER project (Instituto Superior Técnico, Unbabel, University of Edinburgh and partners)

Run EuroLLM 22B in the EU through an OpenAI-compatible API

EuroLLM 22B Instruct is a European open model built to understand and write every official language of the European Union. It was trained on the MareNostrum 5 supercomputer through a EuroHPC grant. On inference.eu you call it with the OpenAI or Anthropic request format, processed in EU data centres and never used for training.

Contact salesExample request
  1. 0122.6B
  2. 02EU data centres
  3. 03Apache 2.0

What EuroLLM 22B is

EuroLLM is a family of open language models developed by a consortium of European universities and companies, led from Instituto Superior Técnico in Lisbon and including Unbabel, the University of Edinburgh, Université Paris-Saclay, Sorbonne Université and the University of Amsterdam. The 22B Instruct model, version 2512, has about 22.6 billion parameters and a context window of 32,768 tokens.

It was trained on around 4 trillion tokens using 400 H100 GPUs on MareNostrum 5 in Barcelona. The training mix was deliberately spread across all 24 official EU languages plus Arabic, Catalan, Chinese, Galician, Hindi, Japanese, Korean, Norwegian, Russian, Turkish and Ukrainian, with parallel data to strengthen translation.

What it does well, and where it falls short

EuroLLM's strength is breadth across European languages. Where many models are strong in English and a handful of large languages, EuroLLM was built to produce usable text in Estonian, Latvian, Maltese, Irish, Slovenian or Croatian as well. That makes it a good fit for translation, multilingual customer communication and public-sector services that must treat every EU language equally.

It is a dense 22B model with a 32K context, so it is not built for very long documents, image input or complex agentic coding. On reasoning-heavy tasks and code, larger models such as Qwen3 or Mistral Small 4 do better. Use EuroLLM where language coverage matters more than raw reasoning power.

Calling EuroLLM 22B through the API

inference.eu uses the OpenAI request format, so the OpenAI SDKs for Python and JavaScript, LangChain, LlamaIndex and other compatible tools work as they are. Set the base URL to the inference.eu API, use your inference.eu key and set the model to eurollm-22b-instruct.

Write your system prompt and user messages in the language you want back; the model follows the conversation language. For translation, name the source and target language explicitly in the prompt. Streaming works as usual, and the Anthropic Messages format is also available if your tools were built for Claude.

A European model, processed in the EU

EuroLLM was funded and trained in Europe, and on inference.eu it also runs in Europe. Your prompts and its responses are processed in data centres in the European Union, and they are never used to train any model.

Every customer receives a data processing agreement under Article 28 of the GDPR and our list of subprocessors, so you can document the full chain of processing. Billing is in euros. The Apache 2.0 licence allows commercial use without user or revenue limits, which suits public administrations and companies that want a European model with no strings attached.

eurollm-22b-instruct · Python
import os
from openai import OpenAI

client = OpenAI(base_url="https://api.inference.eu/v1", api_key=os.environ["INFERENCE_EU_API_KEY"])

response = client.chat.completions.create(
    model="eurollm-22b-instruct",
    messages=[{"role": "user", "content": "Summarise this contract in five bullet points."}],
)
print(response.choices[0].message.content)

What teams use it for

  • 1

    Translation across EU languages

    Translate product texts, notices and correspondence between all 24 official EU languages, including smaller ones such as Maltese and Irish.

  • 2

    Multilingual citizen services

    Answer questions from citizens or customers in their own language, with the same assistant for every member state.

  • 3

    Localising content

    Adapt marketing copy, help-centre articles and documentation for each European market from one source text.

EuroLLM 22B Instruct: common questions

The questions buyers, developers and legal teams ask us most. Something missing? Ask us directly.

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