Published Sun May 10 2026 08:00:00 GMT+0800 (中国标准时间)
thinkingevaluation
Why self-hosting an AI support stack pays off in 2026
SaaS support keeps getting pricier while open-source matures. A framework across cost, compliance and control.
Three shifts#
- SaaS price creep — Intercom and Zendesk “AI seat” SKUs run $79–$129 / month; a thousand-customer setup easily passes five figures a year
- Open-source caught up — Chatwoot, Dify and Rasa all shipped LLM integrations through 2024–2025
- Local models are viable — Qwen2.5, Llama 3.3 and DeepSeek can resolve 80% of routine support questions
Decision framework#
| Dimension | Self-host | SaaS |
|---|---|---|
| MAU conversations < 500 | Not worth it | Pick SaaS |
| 1000–5000 | Either | Team-dependent |
| > 5000 | Self-host wins | Price scales painfully |
| Compliance required | Must self-host | Risky |
| Has ops capacity | Low cost | — |
Recommended path#
Spend week one on the “Chatwoot + Dify” combo to start collecting conversations. After 2–3 weeks, evaluate AI self-serve rate on real data. Decide whether to invest further.