Tangle vs E2B: which sandbox for coding agents?
Pick E2B for a Firecracker microVM per session, sandboxes in your own AWS, GCP or Azure account, and memory kept across pause. Pick Tangle when the coding agent should need no model key, return its result, usage and cost from one prompt call, and stop at a fleet budget you set in dollars.
Last checked November 10, 2026: each E2B fact links the page it came from, read that day.
Pick E2B when
- Every session needs its own microVM: E2B runs each sandbox on a Firecracker-based microVM with its own kernel. (e2b.dev)
- Sandboxes must run in your AWS, GCP or Azure account, through E2B's enterprise BYOC, or on your own node with the Apache-2.0 E2B Embed package. (e2b.dev)
- A paused sandbox must keep its memory, so running processes survive the resume. (docs.e2b.dev/sandbox/persistence)
- You run in Asia-Pacific: E2B Cloud lists US, EU and APAC regions. (e2b.dev)
- You want to start on free usage credit with no card, and run more sandboxes at once than Tangle's Free plan allows. (e2b.dev/pricing)
- You want a platform many teams already run: E2B reports 2B+ sandboxes started and 100K+ teams. (e2b.dev)
Pick Tangle when
- Your coding agent needs no model key: Tangle Router is the default, billed to your Tangle balance. (docs.tangle.tools/sandbox/cloud-agents)
- One prompt call gives the agent its task and returns the result, token usage and cost. (docs.tangle.tools/sandbox/cloud-agents)
- A fleet runs many agents under one budget, set in dollars, and the platform refuses any charge past it. (docs.tangle.tools/sandbox/agents-fleet)
- You keep E2B as well: agent-runtime runs the same agent code on E2B and on Tangle. (docs.tangle.tools/sandbox/other-providers)
E2B and Tangle, row by row
| Feature | E2B | Tangle |
|---|---|---|
| Coding agents | Pre-built templates for Claude Code, Codex, OpenCode, Pi, Prime Agent, OpenClaw, Hermes Agent, Amp, Cursor Agents, Devin and more (e2b.dev) | Claude Code, Codex, OpenCode, Pi, Hermes, OpenClaw, Kimi Code and Prime Agent installed in every sandbox (tangle.tools) |
| Model calls | You bring the model; the sandbox calls it under your egress policy (e2b.dev) | Tangle Router by default, billed to the same Tangle balance as the sandbox (docs.tangle.tools/sandbox/cloud-agents) |
| Isolation | A Firecracker-based microVM with its own kernel for every sandbox (e2b.dev) | A container or a Firecracker microVM, chosen per sandbox (docs.tangle.tools/sandbox/security) |
| Stop and resume | Pause keeps the filesystem and memory, so running processes survive, and a paused sandbox is kept with no automatic deletion (docs.e2b.dev/sandbox/persistence) | Timers you set stop a sandbox; a stopped sandbox keeps its files until you delete it or its delete timer passes (docs.tangle.tools/sandbox/migrate-e2b) |
| Snapshots and forks | Snapshots capture filesystem and memory and start new sandboxes from that state (docs.e2b.dev/sandbox/snapshots) | Snapshot, revert, and split a running sandbox into copies (docs.tangle.tools/sandbox/snapshots) |
| Desktop | E2B Desktop: a screen, mouse and keyboard with a live stream (e2b.dev) | A desktop the coding agent controls through a hosted computer-use endpoint (docs.tangle.tools/sandbox/agents-mcp) |
| MCP | 200+ MCP servers, called from inside the sandbox (e2b.dev) | A local stdio MCP server for one sandbox, plus the hosted computer-use endpoint (docs.tangle.tools/sandbox/agents-mcp) |
| Secrets | A secrets vault: keys the agent can use but never read (e2b.dev) | Stored once; you choose whether the sandbox can read a secret or only the network proxy can (docs.tangle.tools/sandbox/secrets) |
| Network | Ingress and egress under your policy (e2b.dev) | Open, a strict allowlist, or blocked, changeable while the sandbox runs (docs.tangle.tools/sandbox/egress) |
| Run records | Metrics, logs and signed webhooks (e2b.dev) | Every agent turn is traced, and an Intelligence report summarizes what the agent did (docs.tangle.tools/sandbox/observability) |
| Regions | US, EU and APAC (e2b.dev) | eu1 and us1 (tangle.tools/benchmarks) |
| Your own cloud | BYOC in your AWS, GCP or Azure account for enterprise customers; E2B Embed runs the whole stack on one node (e2b.dev) | Tangle hosts the sandboxes; on-premises hosting is planned. agent-runtime runs the same agent code on E2B, Daytona or any ComputeSDK cloud (tangle.tools/what-is-tangle) |
| SDKs | Python and JavaScript/TypeScript, plus Code Interpreter and Desktop SDKs (e2b.dev) | TypeScript, Python (tangle-sandbox on PyPI) and the tangle CLI (docs.tangle.tools/sandbox/sdk-python) |
| Free start | A Hobby tier with one-time usage credit and no card required (e2b.dev/pricing) | A Free plan with no included credit (tangle.tools#pricing) |
| Compliance | Lists SOC 2 Type II and HIPAA (e2b.dev) | A SOC 2 Type II examination covering June 14 to September 14, 2026; the report is in issuance (tangle.tools/security) |
Start times: our measurements, their published claims
| Tangle, measured | p50 | p95 | Runs | Failed |
|---|---|---|---|---|
| New sandbox, ready to use | 1.5s | 12s | 393 | 56 of 425 |
| Create, then run a first command | 1.7s | 8s | 74 | 3 of 77 |
| Claude Code's first reply, from create | 3.4s | 12s | 45 | 3 of 48 |
| Codex's first reply, from create | 3.3s | 18s | 44 | 3 of 47 |
Production runs from 2026-11-02 to 2026-11-09, the same rows tangle.tools/benchmarks draws.
- E2B publishes usage, not a start time, on the pages linked here: 2B+ sandboxes started and 100K+ teams. (e2b.dev)
These are different tests, and we have not run E2B through our benchmark.
Prices are on each pricing page
Tangle: plans and the rate card. E2B: e2b.dev/pricing.
Move from E2B
The migration guide maps each E2B call to Tangle, and E2B-compatible REST routes accept E2B's request and response shapes, so HTTP code can stay as it is. Move from E2B, E2B-compatible routes.