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Comparison guides
Find the runtime that fits the work your agent needs to do.
E2B gives each agent session a full Linux microVM. Submilli executes agent-written programs in WebAssembly sandboxes and checks semantic permissions on covered operations.
Daytona provides programmable sandbox computers for running code. Submilli is for code-mode agents whose business operations need semantic permissions.
Cloudflare Code Mode is a tool-use pattern for composing configured tools in generated code. Submilli is a secure runtime for code-mode agents that need semantic permissions.