Legal
A legal app that works with sensitive client documents can use our API – because we never store what you send us.
The AI behind your app – built and run in Europe.
Kosmik is a live API to open-source AI models running on our servers in Prague. If your product already uses an API to access AI, you can switch to Kosmik by changing one line of code.
Open-source models with performance on par with OpenAI and Anthropic – at a fraction of the cost. Your data stays in Europe, is not stored, and is never used to train.
Live API api.koscompute.com/v1
Get €10 in free credits when you sign up to try our API for free.
01 Where it fits
Drop it into the places you already use AI
Wherever your product already calls an AI – your own AI app, a chatbot, a document tool, a coding assistant, an internal workflow – Kosmik can be the AI behind it. No new interface to learn.
One API, the whole model family: Text & coding Images Video Transcription Speech
The whole change is one line
Kosmik speaks the same format as OpenAI, so you keep every request exactly as it is and only point it at our endpoint.
# Your code today – pointing at an AI provider
base_url = "https://api.openai.com/v1"
# Your code with Kosmik – change one line, keep everything else
base_url = "https://api.koscompute.com/v1"Healthcare
A medical app handling patient information keeps that data in the EU and out of any training set.
Fintech
A banking or trading tool that summarizes statements or classifies transactions runs on models your data never leaves the EU.
Consulting
A consultancy that works with sensitive client documents gets strong AI without handing client material to a third party.
02 Why Kosmik
European AI teams can scale without sending data abroad
Kosmik runs models in Europe on infrastructure owned by Europeans.
- Prompts and outputs are not kept
We process your request to deliver a result – not to build a lasting record of your work.
- Never used to train models
No advertising, profiling, fine-tuning, or dataset building from your content.
- Kosmik-operated hardware in the EU
Certified European housing in the Czech Republic, run by our team end to end.
- Future-proof for the CADA direction
The European Commission has proposed the Cloud and AI Development Act (CADA) and Brussels is steering businesses toward AI that runs inside Europe. Our in-EU hardware keeps your workloads there by default. Read the CADA proposal.
- GDPR-aligned operations
Read our privacy policy for the full picture.
03 Our models
Transparent pricing
Live prices from our API.
Start Free Trial12.8× cheaper than Claude Opus
Below are the prices for our Qwen 3.8 27B and Anthropic's Claude Opus 4.6, which offer comparable performance, while our Qwen is 12.8 times cheaper than Claude Opus.
27B parameters · live API price
- Input$0.35 / 1M tokens
- Output$2.20 / 1M tokens
- Cached input$0.09 / 1M tokens
Anthropic list price
- Input$5.00 / 1M tokens
- Output$25.00 / 1M tokens
- Cached input$0.50 / 1M tokens
Showing last known prices from 8/21/2026, 12:34:43 PM. Checking for updates…
04 Performance
Benchmarks that hold up across real workloads
Qwen 3.8 27B on Kosmik infrastructure – validated on our public API for interactive chats, high concurrency, and long context.
- First token (p50)
- 143 ms
- First token (p95)
- 169 ms
- Output throughput
- 76.2 tok/s
Time to first token is how long you wait before the answer starts appearing. Output throughput is how fast the model streams tokens once it begins. Full methodology in the Qwen 3.8 27B performance report.
05 How it works
From sign-up to production in three steps
Self-service, no waiting.
Sign up
Create your account and get €10 in free credits to try our API.
Build
Generate API keys and point your tools at our OpenAI-compatible endpoint.
Scale
Monitor usage, top up credits, and manage billing from your dashboard.
Run your own model, too
Prefer to bring your own? Rent our EU-based GPUs for custom workloads – running your own proprietary model, fine-tuning, or batch processing.
Ready to try Kosmik?
Start with €10 in free credits and run European AI in the tools you already use.
Live model list · api.koscompute.com/v1/models Read the docs