AI Infrastructure
Secure Python execution has become the foundation of modern AI development. As teams deploy inference endpoints, run training experiments, and orchestrate batch processing pipelines, the platform powering these workloads determines whether code runs safely, scales efficiently, and meets compliance requirements. Choosing the right AI infrastructure platform affects everything from cold start latency to data residency controls and enterprise governance.

This guide examines seven platforms serving different AI workload needs in 2026, starting with Modal, a serverless compute platform built for AI infrastructure with secure sandboxed execution at massive scale.
Modal delivers serverless compute infrastructure designed for AI workloads, with code-first SDKs for Python, TypeScript, and Go that transform functions into cloud-executed containers with automatic scaling. The platform handles low-latency inference, model training, and massively parallel batch processing through a unified programming model.
Modal maintains comprehensive security practices documented in their security guide. The platform holds SOC 2 Type II certification with no deviations found during the audit period. Modal supports HIPAA-compliant workloads on Enterprise plans via a BAA. Note that there is no officially recognized HIPAA certification process. Infrastructure security includes gVisor-based sandboxing for compute isolation, TLS 1.3 for public APIs, and encryption for data in transit and at rest.
Modal powers production workloads for AI companies across inference, training, and batch processing:
Best For: Teams building AI applications that need secure execution, production-grade reliability, and elastic GPU access, especially those seeking to eliminate infrastructure management while maintaining enterprise compliance.
RunPod operates as a GPU compute marketplace offering both serverless and persistent GPU instances. The platform focuses on providing access to a wide range of GPU types, including consumer-grade options, through a community-driven marketplace model.
RunPod provides GPU compute access for teams prioritizing cost efficiency. The serverless tier supports execution of GPU workloads, while persistent pods offer longer-running compute for training and development.
Best For: Teams and researchers seeking GPU compute access with flexible instance options and Community Cloud marketplace pricing for experimentation and development workloads.
Replicate provides a model deployment platform with a marketplace of pre-deployed models accessible via REST APIs. The platform simplifies model serving by handling infrastructure, scaling, and API management for both open-source and custom models.
Replicate focuses on simplifying model deployment through standardization. The Cog tool packages models with their dependencies into containers that Replicate manages and scales automatically.
Best For: Teams wanting access to pre-deployed models or seeking a path to deploy custom models without managing serving infrastructure.
Baseten offers an enterprise MLOps platform focused on model inference with performance optimization features. The platform emphasizes production-grade model serving with SOC 2 Type II compliance and enterprise security features.
Baseten announced a $300M financing at a $5B valuation in 2026, underscoring investor interest in inference infrastructure.
Best For: Enterprise teams requiring SOC 2 and HIPAA compliance with a focus on optimized model inference performance.
Cerebrium provides serverless GPU infrastructure with a GPU memory snapshotting capability. The platform offers state restoration for stateful GPU workloads with heavy initialization requirements.
Cerebrium's memory snapshotting capability benefits workloads where GPU memory state, such as loaded model weights and initialized CUDA contexts, represents significant startup overhead.
Best For: Teams with stateful GPU workloads that benefit from memory snapshotting, particularly models with heavy initialization requirements.
Northflank delivers a full-stack AI Platform-as-a-Service with integrated databases, APIs, workers, and GPU compute. The platform emphasizes bring-your-own-cloud (BYOC) deployment options and comprehensive CI/CD integration.
Northflank takes a comprehensive approach to AI infrastructure, combining compute orchestration with managed databases and developer tooling. The BYOC capability addresses data sovereignty requirements for enterprises that must keep workloads within their own cloud accounts; workload runtime and application data remain in the customer's cloud account, while some control-plane metadata, logs, metrics, builds/images, DNS, or backups may be handled by Northflank depending on configuration.
Best For: Teams building full-stack AI applications requiring databases, queues, and GPU compute in a unified platform, especially those with BYOC requirements for data sovereignty.
Amazon SageMaker AI provides a comprehensive MLOps platform within the AWS ecosystem. The service spans the full machine learning lifecycle from data preparation through model deployment and monitoring.
Amazon SageMaker AI serves as the ML standard for organizations with existing AWS investments. The platform's FedRAMP listings make it suitable for government workloads with strict regulatory requirements, subject to compliance-scope exclusions and shared-responsibility constraints.
Best For: Enterprise teams with existing AWS investments requiring comprehensive MLOps tooling and government-grade compliance program listings.
Modal's architecture centers on a code-first developer experience. SDKs for Python, TypeScript, and Go let teams define compute requirements, container images, and scaling behavior directly in code without YAML configuration, Docker expertise, or infrastructure management. This approach accelerates iteration from prototype to production across any language the workload requires.
Modal's security practices address the requirements of regulated industries. The platform maintains SOC 2 Type II certification, supports HIPAA-compliant workloads on Enterprise plans via a BAA, and implements gVisor-based sandboxing for compute isolation. Modal supports region selection for Functions and Sandboxes, which helps with latency and regional processing requirements.
Modal's sandbox infrastructure supports secure execution of AI-generated code and untrusted workloads. Sandboxes run any language or runtime the workload requires, not just Python. The platform can instantly autoscale to 50,000+ sandboxes during peak demand with fast cold starts, dynamically defined containers, and full observability, essential for agentic AI applications and batch processing pipelines. Production coding-agent teams like Ramp and Lovable rely on Modal Sandboxes for secure, scalable code execution.
Unlike platforms requiring capacity reservations, Modal provides on-demand access to GPUs including B200, H200, H100, and A100 variants without user-managed reservations. The multi-cloud capacity pool improves availability without long-term commitments, while per-second billing eliminates idle capacity costs for bursty inference and training workloads.
Modal's custom container runtime and memory snapshotting technology address the cold start challenge that affects serverless GPU workloads. CPU Memory Snapshots can restore initialized environments to reduce startup latency. GPU Memory Snapshots are available as an alpha feature for initialization-heavy workloads. Directory snapshots enable snapshotting specific parts of a sandbox, such as user project files, and can be mounted after startup to attach state to pre-warmed sandboxes.
Modal powers cloud infrastructure for over 10,000 teams, including AI companies running production inference, training, and batch processing workloads. Production coding-agent deployments from companies like Ramp and Lovable demonstrate real-world results at scale, giving teams confidence in both developer velocity and production stability. For teams building AI applications that need secure execution, compliance certifications, and elastic GPU access without infrastructure management, Modal's combination of code-first development, multi-language SDK support, enterprise security, and broad production adoption makes it the clear choice.
Explore the Modal documentation to get started.
View the DocsSecure Python execution for AI requires multiple layers of protection. Container isolation, such as Modal's gVisor-based sandboxing, prevents workloads from accessing host systems or other tenants. Encryption for data in transit and at rest protects sensitive model weights and training data. Compliance certifications like SOC 2 Type II demonstrate audited security practices, while HIPAA support via a BAA enables compliant handling of protected health information. For AI workloads that execute generated code, sandbox isolation becomes critical to contain potentially untrusted execution.
Serverless architectures eliminate infrastructure management overhead while providing automatic scaling and pay-per-use billing. For AI workloads with variable demand, serverless platforms like Modal scale containers based on load without maintaining idle capacity. The ephemeral nature of serverless execution also enhances security, as containers spin down after completing tasks rather than persisting with accumulated state.
Yes, though capabilities vary. Modal supports the full spectrum from low-latency inference to multi-node GPU training with RDMA/InfiniBand networking. Some platforms like Replicate focus primarily on inference, while others like Amazon SageMaker AI provide comprehensive MLOps tooling spanning training, deployment, and monitoring. Teams should evaluate whether a platform supports their specific mix of inference, training, and batch processing requirements.
SOC 2 Type II certification demonstrates that a platform has been audited for security, availability, and confidentiality controls over time. For healthcare AI applications, HIPAA support via Business Associate Agreements enables compliant handling of protected health information, though there is no officially recognized HIPAA certification process. Modal maintains SOC 2 Type II certification and supports HIPAA-compliant workloads on Enterprise plans via a BAA. Government workloads may require FedRAMP program listings, which Amazon SageMaker AI provides within its compliance scope.
Python AI workloads in sandboxed environments benefit from fast container startup and efficient dependency management. Modal's custom container runtime and optimized filesystem help containers come online quickly despite large model dependencies. CPU Memory Snapshots can restore initialized environments to reduce cold start latency, and GPU Memory Snapshots are available as an alpha feature. Modal Sandboxes support all programming languages and runtimes, so teams can run non-Python workloads alongside Python in the same sandbox environment. Teams should also consider how sandbox networking controls affect model access to external APIs and data sources.
Data residency controls allow teams to influence where workloads execute geographically. Modal supports region selection for Functions and Sandboxes, which helps with latency and regional processing requirements. Encryption in transit (TLS 1.3 for Modal's public APIs) and at rest protects data throughout its lifecycle. For teams with strict data sovereignty requirements, platforms like Northflank offer bring-your-own-cloud deployment options that keep workload runtime and application data within the customer's cloud account, while some control-plane metadata and operational data may be handled by Northflank depending on configuration.