Model garden Router · warm Dedicated · available

Mistral Medium 3.5

Instantly via the EU router or as a dedicated GPU deployment. Data stays in Europe.

Mistral Medium 3.5 is an multimodal language model from Mistral-medium-3.5-128b with a 262K-token context window, hosted on EU GPUs via an OpenAI-compatible API.

mistral-medium-3.5-128b vLLM ready
text+image->text · open weights · sovereign EU
Runs on EU infrastructure operated by European companies; US marketplace capacity is never part of this chain. Full chain
—
Parameters
262K
Context window
260GB
Minimum VRAM
POST /api/v1/chat/completions 200 OK

Specifications

Context window 262,144 tokens
Context on every source 131,072 tokens · The router sends longer requests to a source where they fit.
Minimum VRAM 260 GB
Modality text+image->text

Pricing

Shared router · per token
€1.73
Input (per 1M tokens)
€8.63
Output (per 1M tokens)
Dedicated GPU · per hour
from €11,88 per hour
Your own vLLM instance on European cloud (260 GB VRAM), billed hourly.

Shared EU router, pay-per-token, scale-to-zero. Dedicated GPU deployments are billed hourly, see pricing.

✓ Verified working on 08-10-2026, responded in ms on our EU infrastructure.

Bench index

Bench is our quality index for every model, 0 to 100. It rests on public measurements (Epoch AI with about 40 benchmarks, LiveBench, LMArena and more) and is refreshed every morning. Where nobody measures, it shows an estimate with a range.

~67.4 / 100 · Estimate

No public benchmark yet: estimated from size and release date.

Range 56.0 to 78.7

Sources: Epoch AI ↗ · LiveBench ↗ · LMArena ↗ · Refreshed daily, last on 08-10-2026

Call it now

Drop-in replacement for OpenAI: change only the base URL and API key. The Anthropic format (/v1/messages) is supported too.

curl https://hostyourai.com/api/v1/chat/completions \
  -H "Authorization: Bearer hyai-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "mistral-medium-3.5-128b",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Frequently asked questions

Can I run Mistral Medium 3.5 in the EU?

Yes. HostYourAI runs Mistral Medium 3.5 on GPUs in European datacenters via vLLM. Prompts and outputs never leave the EU and there is no US cloud provider in the chain.

Is hosting Mistral Medium 3.5 GDPR-compliant?

Yes. All processing happens inside the EU, a Data Processing Agreement (DPA) is available and the subprocessor list is public. Open-source weights also mean: no training on your data.

How much does Mistral Medium 3.5 cost?

Via the shared EU router you pay €1.73 per million input tokens and €8.63 per million output tokens, with no fixed costs. For high volume or isolation you can also run Mistral Medium 3.5 as a dedicated hourly GPU instance.

Is the API OpenAI-compatible?

Yes. You use the standard OpenAI SDKs with a custom base URL (https://hostyourai.com/api/v1). The Anthropic Messages API is supported as a drop-in as well.

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