Koyeb Is Joining Mistral AI: The Best EU-Native PaaS Alternatives for 2026

Post #660 in the sota.io EU Compliance Series

Koyeb's pricing page now carries a banner: "Koyeb is joining Mistral AI." For developers who chose Koyeb precisely because it was a European-founded, general-purpose PaaS — an EU-native alternative to Railway and Render — this announcement changes the calculus.

This post explains what the Mistral acquisition means for your workloads, analyses the CLOUD Act implications of a French AI company backed by US venture capital, and gives you a complete comparison of the best EU-native Koyeb replacements for 2026. It includes a Python KoyebMigrationChecker tool, a 10-item migration checklist, and a path to sota.io in under 30 minutes.

What "Joining Mistral AI" Actually Means

Koyeb was founded in France and built as a serverless PaaS for standard developer workloads: containerised APIs, web services, workers, scheduled jobs. Its EU incorporation and competitive pricing ($20.74/month for 2 vCPU + 2 GB RAM) made it attractive to European teams who cared about data residency.

Mistral AI is the French AI company behind the Mistral 7B and Mixtral 8x7B model families. The strategic rationale for acquiring Koyeb is straightforward: Mistral needs managed GPU infrastructure to serve its own inference APIs. Koyeb's engineering team, infrastructure relationships, and European customer base are directly relevant to that goal.

The result is what Mistral is calling "Mistral Compute" — a platform optimised for GPU-accelerated LLM inference, not for general-purpose web services.

For Koyeb users running standard workloads, three things change:

1. Roadmap focus shifts. Managed PostgreSQL, GitHub Actions integration, deployment previews, and developer DX features will not be Mistral Compute's primary investment areas.
2. Pricing model divergence. AI compute pricing (GPU-hours, inference tokens) does not map cleanly to web service economics. Whether existing Koyeb pricing survives the pivot is unclear.
3. Support posture changes. When a platform's strategic priority shifts, legacy use case support follows.

The CLOUD Act Question: Koyeb Was French, But Mistral Has US VCs

This is the nuanced part that most migration guides miss.

Koyeb was incorporated in France — genuinely outside US jurisdiction. The CLOUD Act (18 U.S.C. § 2713) applies to US persons and US entities, and Koyeb as a French company was not subject to it.

Mistral AI is also French. But the VC structure matters.

Mistral AI has raised over $1.1 billion from investors including Andreessen Horowitz (a16z), General Catalyst, and other US venture capital firms. US investors with board seats or significant ownership stakes create a more complex jurisdictional picture. While a French company is not directly subject to the CLOUD Act, US investors can be subject to US legal process that may affect corporate governance decisions — including decisions about data access.

This is not the same exposure as AWS or Google Cloud. But it is not the clean EU-jurisdiction story that Koyeb originally offered, either.

The practical question for EU developers: If your threat model requires infrastructure that is immune to US legal reach — not just physically in the EU, but legally outside US influence — Mistral Compute introduces uncertainty that the pre-acquisition Koyeb did not have.

Comparison: Koyeb vs EU-Native Alternatives (2026)

Key finding: Railway, Render, and Fly.io are US-incorporated. They have US data centres in Europe, but the CLOUD Act applies regardless of server location — US companies must comply with valid US government orders even for data stored abroad. If GDPR Art. 44 cross-border transfer compliance matters to your legal team, these platforms require a Transfer Impact Assessment (TIA) and Standard Contractual Clauses (SCCs).

sota.io, Clever Cloud, and Scalingo are incorporated in the EU. No TIA required. No CLOUD Act exposure.

Migration Guide: From Koyeb to sota.io

Most Koyeb workloads can be migrated to sota.io in under 30 minutes. Here is the process.

Step 1: Export Koyeb Environment Variables

In the Koyeb dashboard, navigate to each service → Settings → Environment Variables. Copy all variable names and values. Store them temporarily in a local .env file (never commit this).

# Example Koyeb env export (manual or via Koyeb CLI)
koyeb service get my-service --output json | jq '.env_vars'

Step 2: Verify Your Dockerfile

sota.io deploys Docker containers. If Koyeb was building from a GitHub repository and auto-detecting your runtime, check whether you have a committed Dockerfile:

ls -la Dockerfile

If no Dockerfile exists, sota.io provides a detection layer for Node.js, Python, Go, and Ruby — similar to what Koyeb offered. You can also use sota.io's standard Dockerfiles as a starting point.

Step 3: Deploy to sota.io

# Install sota CLI
npm install -g @sota-io/cli

# Login
sota login

# Deploy from your project root
sota deploy --name your-app

# For a specific Dockerfile
sota deploy --name your-app --dockerfile ./Dockerfile

sota.io detects your runtime, builds the container, and deploys it to the nearest German data centre.

Step 4: Set Environment Variables

# Set individual variables
sota env set DATABASE_URL="postgres://..." --app your-app
sota env set SECRET_KEY="..." --app your-app

# Or bulk import from a local .env file
sota env import .env --app your-app

Step 5: Migrate Managed PostgreSQL

If you use Koyeb's managed PostgreSQL, export your data first:

# Dump from Koyeb Postgres
pg_dump $KOYEB_DATABASE_URL > koyeb_backup.sql

# Create sota.io Postgres instance
sota postgres create --app your-app --plan starter

# Get the new connection URL
sota postgres url --app your-app

# Restore
psql $SOTA_DATABASE_URL < koyeb_backup.sql

Step 6: Update DNS

sota.io assigns a deployment URL (your-app.sota.io). For custom domains:

sota domain add yourdomain.com --app your-app

Update your DNS CNAME record to point to the sota.io endpoint. HTTPS is provisioned automatically via Let's Encrypt.

Python KoyebMigrationChecker

This tool scans a koyeb.yaml configuration file (if you have one) and generates an equivalent sota.io deployment configuration:

#!/usr/bin/env python3
"""
KoyebMigrationChecker — converts koyeb.yaml to sota.io deployment config
Usage: python migrate.py koyeb.yaml
"""

import sys
import yaml
import json
from pathlib import Path


def load_koyeb_config(path: str) -> dict:
    with open(path) as f:
        return yaml.safe_load(f)


def check_cloud_act_risk(config: dict) -> list[str]:
    warnings = []
    regions = config.get("regions", [])
    us_regions = [r for r in regions if r.startswith("was") or r.startswith("sfo")]
    if us_regions:
        warnings.append(
            f"CLOUD Act risk: US regions detected ({', '.join(us_regions)}). "
            "sota.io deploys to Germany only — no CLOUD Act exposure."
        )
    return warnings


def convert_service(service: dict) -> dict:
    sota_config = {
        "name": service.get("name", "migrated-app"),
        "runtime": "docker",
        "region": "de-fra",  # Frankfurt, Germany
        "gdpr_compliant": True,
        "cloud_act_exposure": "none",
    }

    # Instance type mapping: Koyeb → sota.io
    instance_map = {
        "nano": "starter",   # 0.1 vCPU / 256MB → €9/mo
        "micro": "starter",  # 0.25 vCPU / 512MB → €9/mo
        "small": "standard", # 0.5 vCPU / 512MB → €19/mo
        "medium": "standard",# 1 vCPU / 2GB → €19/mo
        "large": "pro",      # 2 vCPU / 8GB → €49/mo
    }
    koyeb_instance = service.get("instance_type", "small")
    sota_config["plan"] = instance_map.get(koyeb_instance, "standard")
    sota_config["_koyeb_instance"] = koyeb_instance

    # Environment variables
    env_vars = service.get("env", [])
    if env_vars:
        sota_config["env_vars"] = {
            e["key"]: e.get("value", f"<SET_{e['key']}>")
            for e in env_vars
        }

    # Ports
    ports = service.get("ports", [])
    if ports:
        sota_config["port"] = ports[0].get("port", 8000)

    # Health checks
    hc = service.get("health_checks", [])
    if hc:
        sota_config["health_check"] = {
            "path": hc[0].get("path", "/health"),
            "interval": 30,
        }

    return sota_config


def generate_migration_report(koyeb_path: str) -> None:
    config = load_koyeb_config(koyeb_path)
    services = config.get("services", [config])  # single service or list

    print("=" * 60)
    print("KoyebMigrationChecker — sota.io Migration Report")
    print("=" * 60)

    all_warnings = check_cloud_act_risk(config)
    if all_warnings:
        print("\nWARNINGS:")
        for w in all_warnings:
            print(f"  * {w}")

    sota_configs = []
    for service in services:
        sota = convert_service(service)
        sota_configs.append(sota)

        print(f"\nService: {sota['name']}")
        print(f"  Koyeb instance: {sota.get('_koyeb_instance', 'unknown')}")
        print(f"  sota.io plan:   {sota['plan']}")
        print(f"  Region:         Frankfurt, Germany (no CLOUD Act)")
        if "env_vars" in sota:
            print(f"  Env vars:       {len(sota['env_vars'])} variables detected")
        if "port" in sota:
            print(f"  Port:           {sota['port']}")

    print("\n" + "=" * 60)
    print("Next steps:")
    print("  1. sota deploy --name <app-name>")
    print("  2. sota env import .env --app <app-name>")
    print("  3. sota postgres create --app <app-name>  (if needed)")
    print("  4. sota domain add <your-domain> --app <app-name>")
    print("  5. Update DNS CNAME → your-app.sota.io")
    print("=" * 60)

    output_path = Path(koyeb_path).stem + "_sota_config.json"
    with open(output_path, "w") as f:
        json.dump(sota_configs, f, indent=2)
    print(f"\nConfiguration written to: {output_path}")


if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Usage: python migrate.py koyeb.yaml")
        sys.exit(1)
    generate_migration_report(sys.argv[1])

Run it against your Koyeb configuration:

python migrate.py koyeb.yaml

The tool outputs a migration report and generates a *_sota_config.json you can use as a reference when setting up your sota.io services.

10-Item Migration Checklist

Use this before cutting over DNS:

• 1. Export all environment variables from Koyeb dashboard (all services)
• 2. Verify Dockerfile exists and builds locally (docker build -t test .)
• 3. Run KoyebMigrationChecker on any koyeb.yaml files in your repo
• 4. Deploy to sota.io and confirm the deployment succeeds
• 5. Set all environment variables on sota.io (sota env set or sota env import)
• 6. Dump and restore PostgreSQL if using Koyeb managed Postgres
• 7. Test all endpoints on the sota.io URL before DNS switch
• 8. Configure health check path in sota.io dashboard
• 9. Add custom domain and verify HTTPS provisioning
• 10. Update GDPR ROPA — record the processor change from Koyeb/Mistral to sota.io (GmbH, Germany)

The last item matters: your GDPR Record of Processing Activities (ROPA) should reflect the infrastructure processor change. sota.io's DPA is available at sota.io/legal.

Why Indie Devs and Small Teams Are Moving to sota.io

The Koyeb acquisition creates urgency, but the underlying reasons to choose sota.io hold regardless:

Pricing. Koyeb's general-purpose tier was $20.74/month for 2 vCPU + 2 GB RAM. sota.io starts at €9/month. For the same compute class, that is more than 2× cheaper with a stronger EU jurisdiction guarantee.

EU incorporation. sota.io is a German GmbH. No CLOUD Act. No Transfer Impact Assessment required. GDPR Article 44 compliance without SCCs for EU-to-EU transfers.

General-purpose focus. sota.io is not pivoting to AI inference. It is built for the workloads Koyeb used to serve: web apps, APIs, workers, scheduled jobs. That focus will not change.

Zero DevOps. Git push, Docker build, HTTPS, managed Postgres, custom domains — without touching a Kubernetes cluster.

Pricing: Koyeb General-Purpose vs sota.io

Koyeb recently removed General-Purpose CPU instances from its pricing page (replaced by AI-optimised instances). The comparison that mattered to most Koyeb users:

For small and medium workloads — the majority of Koyeb's customer base — sota.io is cheaper with the same or better EU jurisdiction guarantees.

Start Your Migration

If you have Koyeb services that need a new home, try sota.io. The free tier covers small services with no credit card required. Migration support is available in the documentation for every major runtime.

The Koyeb → Mistral transition is a signal, not a crisis. Platforms get acquired. Roadmaps change. EU developers who plan now — rather than after a sunset announcement — make infrastructure decisions on their own terms.

sota.io is the EU-native PaaS for the workloads Koyeb used to serve: boring infrastructure, German jurisdiction, predictable pricing.

Deploy your first service on sota.io →

Related posts: Best EU PaaS Providers 2026 · Best Railway Alternative for EU Developers · Koyeb Joining Mistral: Migration Overview