docs: Nebius Token Factory provider documentation (#2997)

packages/web/src/content/docs/providers.mdx

@@ -694,6 +694,33 @@ To use Kimi K2 from Moonshot AI:
 
 ---
 
+### Nebius Token Factory
+
+1. Head over to the [Nebius Token Factory console](https://tokenfactory.nebius.com/), create an account, and click **Add Key**.
+
+2. Run the `/connect` command and search for **Nebius Token Factory**.
+
+   ```txt
+   /connect
+   ```
+
+3. Enter your Nebius Token Factory API key.
+
+   ```txt
+   ┌ API key
+   │
+   │
+   └ enter
+   ```
+
+4. Run the `/models` command to select a model like _Kimi K2 Instruct_.
+
+   ```txt
+   /models
+   ```
+
+---
+
 ### Ollama
 
 You can configure opencode to use local models through Ollama.