Beam: Open Source Alternative to Modal
Serverless GPU platform with sub-second cold starts — deploy AI inference, training, and sandboxes with automatic scaling
Beam is a serverless GPU platform with sub-second cold starts and 1.7k+ GitHub stars — a Modal alternative for deploying AI inference, training, and code execution with automatic scaling.
Compare Beam with Replicate and RunPod before you choose your stack.
Key features
Compute & infrastructure
- Sub-second cold starts with persistent GPU containers
- NVIDIA GPU support (T4, A10G, A100, H100)
- Automatic scaling from zero to thousands of containers
- Built-in object storage and volume mounts
- Custom Docker images and dependency management
AI workloads
- LLM inference with vLLM, TGI, and custom backends
- Fine-tuning and training with distributed GPU support
- Batch processing and async task queues
- Model serving with auto-scaling and traffic splitting
Developer experience
- Python-native SDK with decorator-based deployment
- Git-based deployments and CI/CD integration
- Real-time logs, metrics, and observability
- Team collaboration and role-based access control
Beam vs Modal
| Beam | Modal | |
|---|---|---|
| License | AGPL-3.0 (open source) | Proprietary |
| Models | Bring your own keys / local models | Vendor-locked models |
| Deployment | Self-hosted or cloud | SaaS only |
| Privacy | Data stays on your infrastructure | Processed by vendor |
| Cost | Free software + API usage | Subscription pricing |
Choose Beam if you want open-source code, self-hosting options, and full control over your data and deployment.
Choose Modal if you prefer a managed proprietary product with vendor support and minimal setup.
Browse more open-source alternatives to Modal, or explore other tools in Developer Tools.
At a glance
| License | AGPL-3.0 |
| Stack | Go, Python, Kubernetes |
| Self-hosted | Yes — self-hosted control plane |
| Cloud | Beam Cloud (managed) |
| GPU | T4, A10G, A100, H100 |
Self-hosting
git clone https://github.com/beam-cloud/beta9.git
Beam offers a self-hosted control plane option for enterprise deployments. The managed cloud version provides the simplest path to production.
FAQ
Is Beam a free alternative to Modal?
Yes. Beam is open source under AGPL-3.0. You can self-host it at no software cost — you only pay for infrastructure or optional managed services.
How does Beam compare to Modal?
Beam gives you source code access, self-hosting, and data ownership. Modal is a proprietary product focused on managed convenience. See the comparison table above for a side-by-side breakdown.
Can I self-host Beam?
Yes. Beam supports self-hosted deployment, which is a core reason teams choose it over Modal. Check the Getting started or Self-hosting section for install commands.
Is Beam suitable for production?
Beam is actively maintained with a strong open-source community. Many teams run it in production as a Developer Tools alternative to Modal. Review the At a glance table for license and stack details.
What are alternatives to Beam and Modal?
Browse alternatives to Modal for more open-source options, including tools compared to Replicate. Explore the full Developer Tools category for related projects.
Screenshots
