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Alternatives

Products that do what Runtime does

Sandboxed coding agents for everyone on your team

  1. 1

    Run 100s of coding agents on any machine from anywhere

    May 2026 · superset.sh

  2. 2
    Runbear506

    Your best new hire, but AI — in Slack!

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    A version of GPT-5 better at agentic coding

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  4. 4

    Agents that ship real code

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    Sled393

    Run your coding agent from your phone, with voice

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  6. 6

    Coding Autonomously

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  7. 7

    Sandboxed parallel coding agent platform

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  8. 8

    Agent that implements a task/issue + runs in the background

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  9. 9

    The CLI your coding agent uses to ship agents

    Jul 2026 · github.com

  10. 10
    Replicas239

    Run Claude Code and Codex in the cloud

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    Rerun308

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    Grass291

    Gives your coding agent a dedicated VM that's ready 24/7

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  13. 13SA

    We’ve been working with automating coding agents in sandboxes as of late. It’s bewildering how poorly standardized and difficult to use each agent varies between each other. We open-sourced the Sandbox Agent SDK based on tools we built internally to solve 3 problems: 1. Universal agent API: interact with any coding agent using the same API 2. Running agents inside the sandbox: Agent Sandbox provides a Rust binary that serves the universal agent API over HTTP, instead of having to futz with undocumented interfaces 3. Universal session schema: persisting sessions is always problematic, since…

    Jan 2026 · github.com

  14. 14
    OneCLI143

    Give every employee a secured, sandboxed pro assistant agent

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  15. 15TR
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    Openbase216

    Manage your team of AI agents by voice, from anywhere

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  17. 17FO

    Hi HN! I've recently been finding productivity in running parallel CLI coding agents(after not believing in them initially). After having to do a ton of git stashing and branch fumbling, I decided I needed to something to more ergonomically run these agents in their own dedicated spaces. I tried a lot of the existing products but they either were too convoluted or flat out didn't work. Some of them also seem to roll their own chat UI which I don't think is the right approach, I wanted to something to lightly wrap my terminal sessions. So I built FleetCode! It uses git worktrees and let's you…

    Oct 2025 · github.com

  18. 18ZY
  19. 19AR
  20. 20YR
  21. 21

    Codex-powered agents for teams.

    Apr 2026 · openai.com

  22. 222C

    Single-agent LLMs suck at long-running complex tasks. We’ve open-sourced a multi-agent orchestrator that we’ve been using to handle long-running LLM tasks. We found that single LLM agents tend to stall, loop, or generate non-compiling code, so we built a harness for agents to coordinate over shared context while work is in progress. How it works: 1. Orchestrator agent that manages task decomposition 2. Sub-agents for parallel work 3. Subscriptions to task state and progress 4. Real-time sharing of intermediate discoveries between agents We tested this on a Putnam-level math problem, but the…

    Feb 2026 · github.com

  23. 23

    On-demand sandboxes for AI Agents

    Mar 2026

  24. 24AF

    Hi HN, I’m Vincent from Aden. We spent 4 years building ERP automation for construction (PO/invoice reconciliation). We had real enterprise customers but hit a technical wall: Chatbots aren't for real work. Accountants don't want to chat; they want the ledger reconciled while they sleep. They want services, not tools. Existing agent frameworks (LangChain, AutoGPT) failed in production - brittle, looping, and unable to handle messy data. General Computer Use (GCU) frameworks were even worse. My reflections: 1. The "Toy App" Ceiling & GCU Trap Most frameworks assume synchronous sessions.…

    Feb 2026 · github.com

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