Roadmap

Modal API compatibility

How OpenModal compares to the Modal Python API.

Supported

Feature	Modal	OpenModal
Application construction
App	✓	✓
@app.function()	✓	✓
@app.local_entrypoint()	✓	✓
Serverless execution
Function.remote()	✓	✓
Function.local()	✓	✓
Function.map()	✓	✓
Web integrations
@web_server(port)	✓	✓
Function semantics
@modal.concurrent	✓	✓
Scheduling
modal.Cron	✓	✓
modal.Period	✓	✓
Exception handling
retries=N	✓	✓
Sandboxes
Sandbox.create()	✓	✓
Sandbox.exec()	✓	✓
Sandbox.filesystem	✓	✓
ContainerProcess	✓	✓
Container configuration
Image.debian_slim()	✓	✓
Image.from_registry()	✓	✓
Image.from_dockerfile()	✓	✓
.pip_install()	✓	✓
.uv_pip_install()	✓	✓
.apt_install()	✓	✓
.run_commands()	✓	✓
.env()	✓	✓
.workdir()	✓	✓
.entrypoint()	✓	✓
Secret.from_name()	✓	✓
Secret.from_dict()	✓	✓
Resource configuration
gpu=	✓	✓
cpu=	✓	✓
memory=	✓	✓
timeout=	✓	✓
scaledown_window=	✓	✓
Persistent storage
Volume	✓	✓
In-memory storage
Dict	✓	✓
Queue	✓	✓
CLI
run	✓	✓
deploy	✓	✓
stop	✓	✓
secret create/list/delete	✓	✓
ps / logs	✗	✓
monitor	✗	✓
setup	✗	✓

Not yet supported

Feature	Status
High priority
Function.spawn()	Planned
Medium priority
Function.starmap() / .for_each()	Planned
modal.Retries(backoff=)	Planned
CloudBucketMount	Planned
.add_local_file() / .add_local_dir()	Planned
.add_local_python_source()	Planned
.run_function()	Planned
.pip_install_from_requirements() / .pip_install_from_pyproject()	Planned
serve (hot-reload)	Planned
shell	Planned
volume ls/put/get/rm	Planned
Multi-region	Planned
Lower priority
@app.cls() / Cls / @modal.method	Planned — ergonomic, not blocking
@modal.enter / @modal.exit	Planned — ergonomic, not blocking
@modal.batched	Planned — ergonomic, not blocking
@modal.fastapi_endpoint	Planned — ergonomic, not blocking
@modal.asgi_app / @modal.wsgi_app	Planned — ergonomic, not blocking
modal.parameter() / Cls.with_options()	Planned
@app.include()
Image.from_scratch() / Image.micromamba()
Secret.from_dotenv()
ephemeral_disk=
GPU fallback lists
Memory snapshots
FileIO
snapshot_filesystem()
Port tunnels
modal.Proxy / modal.forward()
Rolling / recreate strategies
Environments (dev/staging/prod)
container exec
NetworkFileSystem	Deprecated in Modal

OpenModal-only features

Things we support that Modal doesn't:

• Multi-cloud — GCP, AWS, Azure, and local Docker from one API
• Self-hosted — runs on your own infrastructure, no vendor lock-in
• Local Docker mode — free local testing with GPU passthrough (--local)
• Live terminal dashboard — openmodal monitor with real-time GPU/CPU/memory sparklines
• Historical metrics — persisted metrics with circular buffer
• Interactive setup wizard — openmodal setup for each cloud provider
• Harbor / CooperBench integration — experiment tracking compatibility

Infra roadmap

SLURM provider

Run on university HPC clusters via SLURM + Singularity. No sudo or Kubernetes needed — just SSH + sbatch.