Start With The Execution Bottleneck
This list is for builders who already know the agent workflow they want and now need to decide where that workflow should actually run. At this stage, the main problem is usually no longer prompting or orchestration. It is execution: what has to be isolated, what has to persist, what needs browser capability, and how much of the runtime layer the team wants to own.
Most deployment choices collapse into one of these questions:
- does the product need durable runtime state close to the edge
- does the agent need safe code execution in sandboxes
- does the team want to own and extend the execution layer itself
- is browser execution the real production bottleneck
- is the problem mostly backend compute and jobs rather than agent-specific runtime
Once that is clear, most of the category falls away quickly.
If Runtime And State Are The Product
Cloudflare Agents is the strongest page when the runtime itself is part of the product architecture. It is especially attractive for teams that want stateful web-native agents with edge distribution as part of the design, not as a bolt-on.
If Secure Code Execution Is The Problem
E2B is the clearest recommendation when the immediate problem is safe code execution. It is a focused answer for builders who need the agent to run code or operate tools on behalf of users without turning the whole stack into an infrastructure project.
If Execution Control Should Become Strategic
Daytona becomes more compelling when the team expects execution to become a strategic platform layer. It matters for builders who want a more open execution story and are willing to accept more platform responsibility in exchange for that control.
If The Browser Is The Runtime Bottleneck
Browserbase is the strongest option when the real production need is reliable cloud browser execution. It is less about generic hosting and more about handling the operational reality of browser-driven agents and computer-use workflows.
If The Problem Is Mostly Compute
Modal is the best fit when the agent workload looks more like backend compute, jobs, APIs, and flexible execution than a specialized agent runtime. It is the generalist option in this set.
The Best Shortcut From Here
If the shortlist is already down to secure execution versus open execution control, skip the broad list and go straight to E2B vs Daytona.
Bottom Line
The right deployment platform depends on the runtime bottleneck you actually have. Start with Cloudflare Agents for runtime-plus-state, E2B for secure execution, Daytona for open execution control, Browserbase for browser infrastructure, and Modal when the workload is mostly compute.