LangBot vs Sim
Short answer
LangBot: Platform for AI chatbots on WeChat, WeCom, QQ, Feishu, DingTalk, Slack, Discord and Telegram, run from one dashboard. Sim: Visual builder for AI agent workflows, with knowledge bases, integrations and an API. Both are in our AI app & agent builders category.
Choose Sim if you want: larger community (30.0k vs 18.7k GitHub stars).
LangBot publishes no official RAM figure, so we cannot compare hosting cost directly.
Last updated · computed from each project's official docs and live GitHub data · sources
LangBot vs Sim side by side
| LangBot | Sim | |
|---|---|---|
| Category | AI app & agent builders | AI app & agent builders |
| What it is | Platform for AI chatbots on WeChat, WeCom, QQ, Feishu, DingTalk, Slack, Discord and Telegram, run from one dashboard. | Visual builder for AI agent workflows, with knowledge bases, integrations and an API. |
| License | Apache-2.0 | Apache-2.0 |
| License type | Permissive | Permissive |
| License conditions | Permissive. Internal and commercial use allowed; keep license and notices. | Permissive. Internal and commercial use allowed; keep license and notices. The built-in Chat feature is a Sim-managed service that needs a Chat API key from sim.ai. |
| Status | Active | Active |
| GitHub stars | 18.7k | 30.0k |
| Last commit | Nov 4, 2026 | Nov 3, 2026 |
| Latest release | v4.11.4 | v0.9.42 |
| Minimum hardware | Not published | 2 vCPU · 12 GB RAM · 20 GB disk |
| Recommended hardware | Not published | 4 vCPU · 16 GB RAM · 50 GB disk |
| RAM measured by us | Not tested yet | Not tested yet |
| GPU | Not required / not stated | Not required / not stated |
| Est. server cost | Not estimated | from €69.99/mo |
| Deploy method | Docker Compose | Docker Compose (setup wizard or manual) |
| Known gotchas | 4 listed | 4 listed |
| Telemetry | On by default | On by default |
| Calls home by default | Yes, by default | Not documented |
| SSO (OIDC / SAML / LDAP) | Not documented | Free (OIDC free · SAML free) |
| Audit log | Not documented | Yes, free |
| RBAC | Yes, free | Yes, free |
| Details | Full LangBot guide → | Full Sim guide → |
Key differences
- Official hardware: LangBot: not published. Sim: minimum 2 vCPU · 12 GB RAM · 20 GB disk (recommended 4 vCPU · 16 GB RAM · 50 GB disk).
- Est. server cost: LangBot: not estimated (no official RAM figure). Sim: from €69.99/mo.
- Deploy: LangBot: Docker Compose · multi-container stack. Sim: Docker Compose (setup wizard or manual) · multi-container stack.
- GitHub stars: LangBot: 18.7k. Sim: 30.0k.
- Last commit: LangBot: Nov 4, 2026. Sim: Nov 3, 2026.
- Latest release: LangBot: v4.11.4 (Oct 29, 2026). Sim: v0.9.42 (Nov 3, 2026).
Same for both: Category: AI app & agent builders; License: Apache-2.0 (Permissive); GPU: not required or not stated; Status: Active.
LangBot vs Sim: FAQ
LangBot or Sim: which should a small business choose?
Choose Sim if you want: larger community (30.0k vs 18.7k GitHub stars). LangBot publishes no official RAM figure, so we cannot compare hosting cost directly.
Which is cheaper to self-host, LangBot or Sim?
LangBot: not estimated (no official RAM figure). Sim: from €69.99/mo. Our estimate is the cheapest Hetzner Cloud plan that meets each project's official RAM and vCPU figure; it covers the server only.
How much hardware do LangBot and Sim need?
LangBot: not published. Sim: minimum 2 vCPU · 12 GB RAM · 20 GB disk (recommended 4 vCPU · 16 GB RAM · 50 GB disk).
What is the license difference between LangBot and Sim?
LangBot: Apache-2.0 (Permissive). Permissive. Internal and commercial use allowed; keep license and notices. Sim: Apache-2.0 (Permissive). Permissive. Internal and commercial use allowed; keep license and notices. The built-in Chat feature is a Sim-managed service that needs a Chat API key from sim.ai. This is a summary, not legal advice.
Is LangBot or Sim more actively maintained?
LangBot: Active, last commit Nov 4, 2026. Sim: Active, last commit Nov 3, 2026. GitHub data refreshed Nov 4, 2026.
Which is easier to deploy, LangBot or Sim?
LangBot installs via Docker Compose (multi-container stack); Sim via Docker Compose (setup wizard or manual) (multi-container stack). LangBot lists 4 known gotchas and Sim lists 4; see each app page.
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- LangBot self-hosting guide · Sim self-hosting guide
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Sources
- LangBot GitHub repository: github.com/langbot-app/LangBot
- LangBot documentation, LangBot hardware requirements, LangBot deploy instructions: langbot.app/docs/en/deploy/langbot/docker
- LangBot license: github.com/langbot-app/LangBot/blob/master/LICENSE
- Sim GitHub repository: github.com/simstudioai/sim
- Sim documentation: docs.sim.ai/platform/self-hosting
- Sim license: github.com/simstudioai/sim/blob/main/LICENSE
- Sim hardware requirements: docs.sim.ai/platform/self-hosting#requirements
- Sim deploy instructions: docs.sim.ai/platform/self-hosting/docker
- Hetzner Cloud pricing used for cost estimates (read 2026-11-01): www.hetzner.com/cloud/regular-performance
- GitHub REST API (stars, commits, releases): docs.github.com/en/rest
Every value is generated from the same verified data as the app pages. Spotted something wrong? Tell us.