diff --git a/part9-custom-models.md b/part9-custom-models.md
index def831a..e0431ca 100644
--- a/part9-custom-models.md
+++ b/part9-custom-models.md
@@ -138,6 +138,54 @@ hermes model
 
 Hermes probes the endpoint, detects OpenAI-style `/chat/completions` vs Anthropic-style `/messages`, discovers deployments when possible, and stores the right `api_mode` in `config.yaml`.
 
+### MiniMax M3 Models and Regional Endpoints
+
+Hermes registers `minimax` for the global API and `minimax-cn` for the mainland China API. Both providers support `MiniMax-M3` and `MiniMax-M2.7`. Add aliases when you want to pin either model without changing your default:
+
+```yaml
+model_aliases:
+  minimax-m3:
+    provider: minimax
+    model: MiniMax-M3
+  minimax-m2.7:
+    provider: minimax
+    model: MiniMax-M2.7
+```
+
+Model metadata (July 8, 2026):
+
+| Model | Total context | Input | Thinking |
+|-------|--------------:|-------|----------|
+| `MiniMax-M3` | 1,000,000 | text, image, video | adaptive or disabled |
+| `MiniMax-M2.7` | 204,800 | text | always on |
+
+Pay-as-you-go pricing in USD per million tokens (July 8, 2026):
+
+| Model | Service tier | Input-token band | Input | Output | Cache read | Cache write |
+|-------|--------------|------------------|------:|-------:|-----------:|------------:|
+| `MiniMax-M3` | standard | <= 512,000 | $0.30 | $1.20 | $0.06 | - |
+| `MiniMax-M3` | standard | > 512,000 | $0.60 | $2.40 | $0.12 | - |
+| `MiniMax-M3` | priority | <= 512,000 | $0.45 | $1.80 | $0.09 | - |
+| `MiniMax-M3` | priority | > 512,000 | $0.90 | $3.60 | $0.18 | - |
+| `MiniMax-M2.7` | - | all | $0.30 | $1.20 | $0.06 | $0.375 |
+
+Choose the API region and protocol together. Set `provider`, `base_url`, and `api_mode` under `model` from one complete row below; `default` can be either model ID. The Anthropic SDK appends `/v1/messages` to the `/anthropic` base URL, while the OpenAI SDK appends `/chat/completions` to the `/v1` base URL.
+
+```yaml
+model:
+  provider: minimax
+  default: MiniMax-M3
+  base_url: https://api.minimax.io/anthropic
+  api_mode: anthropic_messages
+```
+
+| Region | Protocol | `provider` | `base_url` | `api_mode` | Documentation |
+|--------|----------|------------|------------|------------|---------------|
+| Global | OpenAI-compatible | `minimax` | `https://api.minimax.io/v1` | `chat_completions` | `https://platform.minimax.io/docs` |
+| Global | Anthropic-compatible | `minimax` | `https://api.minimax.io/anthropic` | `anthropic_messages` | `https://platform.minimax.io/docs` |
+| Mainland China | OpenAI-compatible | `minimax-cn` | `https://api.minimaxi.com/v1` | `chat_completions` | `https://platform.minimaxi.com/docs` |
+| Mainland China | Anthropic-compatible | `minimax-cn` | `https://api.minimaxi.com/anthropic` | `anthropic_messages` | `https://platform.minimaxi.com/docs` |
+
 ### Remote Model Catalog: Stop Hardcoding This Week's Winner
 
 OpenRouter and Nous Portal model pickers now fetch:
@@ -217,6 +265,9 @@ providers:
   minimax:
     api_key: ${MINIMAX_API_KEY}
 
+  minimax-cn:
+    api_key: ${MINIMAX_CN_API_KEY}
+
   gmi:
     api_key: ${GMI_API_KEY}