zen: remove grok code model

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

@@ -86,7 +86,6 @@ You can also access our models through the following API endpoints.
 | Kimi K2            | kimi-k2            | `https://opencode.ai/zen/v1/chat/completions`      | `@ai-sdk/openai-compatible` |
 | Kimi K2 Thinking   | kimi-k2-thinking   | `https://opencode.ai/zen/v1/chat/completions`      | `@ai-sdk/openai-compatible` |
 | Qwen3 Coder 480B   | qwen3-coder        | `https://opencode.ai/zen/v1/chat/completions`      | `@ai-sdk/openai-compatible` |
-| Grok Code Fast 1   | grok-code          | `https://opencode.ai/zen/v1/chat/completions`      | `@ai-sdk/openai-compatible` |
 | Big Pickle         | big-pickle         | `https://opencode.ai/zen/v1/chat/completions`      | `@ai-sdk/openai-compatible` |
 
 The [model id](/docs/config/#models) in your OpenCode config
@@ -112,7 +111,6 @@ We support a pay-as-you-go model. Below are the prices **per 1M tokens**.
 | Model                             | Input  | Output | Cached Read | Cached Write |
 | --------------------------------- | ------ | ------ | ----------- | ------------ |
 | Big Pickle                        | Free   | Free   | Free        | -            |
-| Grok Code Fast 1                  | Free   | Free   | Free        | -            |
 | GLM 4.7                           | $0.60  | $2.20  | $0.10       | -            |
 | GLM 4.6                           | $0.60  | $2.20  | $0.10       | -            |
 | Kimi K2                           | $0.40  | $2.50  | -           | -            |
@@ -147,7 +145,6 @@ Credit card fees are passed along at cost (4.4% + $0.30 per transaction); we don
 
 The free models:
 
-- Grok Code Fast 1 is currently free on OpenCode for a limited time. The xAI team is using this time to collect feedback and improve Grok Code.
 - Big Pickle is a stealth model that's free on OpenCode for a limited time. The team is using this time to collect feedback and improve the model.
 
 <a href={email}>Contact us</a> if you have any questions.
@@ -177,7 +174,6 @@ charging you more than $20 if your balance goes below $5.
 
 All our models are hosted in the US. Our providers follow a zero-retention policy and do not use your data for model training, with the following exceptions:
 
-- Grok Code Fast 1: During its free period, collected data may be used to improve Grok Code.
 - Big Pickle: During its free period, collected data may be used to improve the model.
 - OpenAI APIs: Requests are retained for 30 days in accordance with [OpenAI's Data Policies](https://platform.openai.com/docs/guides/your-data).
 - Anthropic APIs: Requests are retained for 30 days in accordance with [Anthropic's Data Policies](https://docs.anthropic.com/en/docs/claude-code/data-usage).