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Alternatives

Best Riza alternatives

Answer in brief

The strongest Riza alternatives are E2B, Daytona, Azure Container Apps dynamic sessions. Riza’s hosted API is gone, so these are the closest active replacements for running LLM-generated code. Pick based on what you need that Riza does not offer — see the reasons under each entry.

By the Agent Sandboxes editors · Updated

Why teams look beyond Riza

Riza’s hosted Code Interpreter API shut down on October 1, 2025 (announced July 28, 2025). Only the self-hosted container continues for existing licence holders. Riza pointed users to Daytona.

  • Hosted service discontinued

Riza alternatives, ranked

  1. E2B

    Open-source cloud sandboxes for AI agents, each a Firecracker microVM, with pause/resume, snapshots and forking.

    • Firecracker microVM
    • Open source
    • Self-hostable
    • BYOC
    • Pause/resume

    Why it’s here: Code interpreters and short-to-medium-lived agent tasks that need microVM isolation, with an open-source self-host path. The safe default for most agent builders: mature, open source, microVM-isolated and widely supported.

    Full profile →E2B alternativesWebsite ↗

  2. Daytona

    Stateful sandboxes for AI-generated code — Linux containers, Linux and Windows VMs, macOS and GPU sandboxes — with snapshots, volumes and preview URLs.

    • Containers or VMs
    • BYOC
    • GPU
    • Pause/resume

    Why it’s here: Long-lived, stateful agent workspaces that need many SDK languages, GPUs, or Windows and macOS sandboxes. The strongest choice for stateful coding-agent workspaces and breadth of sandbox types; note the shift away from open source.

    Full profile →Daytona alternativesWebsite ↗

  3. Azure Container Apps dynamic sessions

    Azure service that hands out Hyper-V-isolated sessions from prewarmed pools, either as a built-in code interpreter or running your own container image.

    • Hyper-V VM

    Why it’s here: Azure-native apps running LLM-generated Python or Node code with egress off by default. A solid, locked-down code interpreter for Azure shops; not designed for long-lived coding agents.

    Full profile →Website ↗

  4. AWS Bedrock AgentCore

    AWS’s managed agent platform: a Code Interpreter tool for running agent-generated code and a Runtime that hosts each agent session in its own microVM.

    • MicroVM (Runtime)

    Why it’s here: Teams already on AWS that need IAM- and VPC-integrated code execution for agents. The natural default for AWS-centric teams; less attractive if you want portability or a provider-neutral SDK.

    Full profile →Website ↗

  5. OpenAI Code Interpreter & Hosted Shell

    Hosted containers in the OpenAI Responses API that the model uses to run Python (Code Interpreter) or shell commands (Hosted Shell).

    • VM (unspecified)

    Why it’s here: Apps already on the OpenAI Responses API that want model-driven code execution with no extra vendor. Convenient for OpenAI-native apps; choose a dedicated sandbox for multi-model agents or persistent workspaces.

    Full profile →Website ↗

Riza vs alternatives

SandboxIsolationOpen sourceSelf-host / BYOCCold start (vendor)Max sessionSnapshots / pauseGPUSDKs
RizaNot documentedNoNot documented / Not documentedNot documentedNot documentedNot documented / Not documentedNoNot documented
E2BFirecracker microVMYesYes / YesNot documented1 h / 24 h (Pro)Yes / YesNoPython, JavaScript/TypeScript
DaytonaContainers or VMsNoNot documented / Yes<90 msUnlimitedYes / YesYesPython, TypeScript, Ruby, Go, Java
Azure Container Apps dynamic sessionsHyper-V VMNoNo / NoSub-second (pooled)220 s / execNo / NoNoREST API, Azure CLI, LangChain, LlamaIndex, Semantic Kernel
AWS Bedrock AgentCoreMicroVM (Runtime)NoNo / NoNot documentedUp to 8 hNot documented / Not documentedNoPython (AgentCore SDK), AWS SDKs, AWS CLI
OpenAI Code Interpreter & Hosted ShellVM (unspecified)NoNo / NoNot documented20 min idleNo / NoNoOpenAI Responses API, Containers API, OpenAI SDKs

Frequently asked questions

What is the best alternative to Riza?
E2B is the closest overall alternative for most teams: Code interpreters and short-to-medium-lived agent tasks that need microVM isolation, with an open-source self-host path. The safe default for most agent builders: mature, open source, microVM-isolated and widely supported.
Is there an open-source alternative to Riza?
Yes: E2B.

Cite this page

Agent Sandboxes. (2026). Best Riza alternatives. agentsandboxes.org. Last reviewed November 8, 2026. https://agentsandboxes.org/alternatives/riza/

Found an error or a missing sandbox? Submit a correction — every entry links to the sources it relies on.