diff --git a/patches/@mariozechner__pi-ai.patch b/patches/@mariozechner__pi-ai.patch
new file mode 100644
index 000000000..2f69654bb
--- /dev/null
+++ b/patches/@mariozechner__pi-ai.patch
@@ -0,0 +1,40 @@
+diff --git a/dist/providers/openai-completions.js b/dist/providers/openai-completions.js
+index a430c2240a37bcc7d05fb8e551c18964e7636c59..869eb60f0724c31b08aba2e2ee37da63d82696b2 100644
+--- a/dist/providers/openai-completions.js
++++ b/dist/providers/openai-completions.js
+@@ -231,20 +231,26 @@ function buildParams(model, context, options) {
+         stream: true,
+         stream_options: { include_usage: true },
+     };
+-    // Cerebras/xAI/Mistral dont like the "store" field
+-    if (!model.baseUrl.includes("cerebras.ai") &&
+-        !model.baseUrl.includes("api.x.ai") &&
+-        !model.baseUrl.includes("mistral.ai") &&
+-        !model.baseUrl.includes("chutes.ai")) {
++    // Only send OpenAI-specific params (like "store") to actual OpenAI models.
++    // For custom models via proxies like LiteLLM, check providerType.
++    // Fall back to baseUrl detection for known providers.
++    const isOpenAIModel = model.providerType === "openai" ||
++        (!model.providerType &&
++            !model.baseUrl.includes("cerebras.ai") &&
++            !model.baseUrl.includes("api.x.ai") &&
++            !model.baseUrl.includes("mistral.ai") &&
++            !model.baseUrl.includes("chutes.ai") &&
++            (model.baseUrl.includes("api.openai.com") || model.provider === "openai"));
++    if (isOpenAIModel) {
+         params.store = false;
+     }
+     if (options?.maxTokens) {
+-        // Mistral/Chutes uses max_tokens instead of max_completion_tokens
+-        if (model.baseUrl.includes("mistral.ai") || model.baseUrl.includes("chutes.ai")) {
+-            params.max_tokens = options?.maxTokens;
++        // Only OpenAI uses max_completion_tokens. Others (Mistral/Chutes/Anthropic via proxy) use max_tokens
++        if (isOpenAIModel) {
++            params.max_completion_tokens = options?.maxTokens;
+         }
+         else {
+-            params.max_completion_tokens = options?.maxTokens;
++            params.max_tokens = options?.maxTokens;
+         }
+     }
+     if (options?.temperature !== undefined) {
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 3518716ae..9182f4149 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -2,3 +2,6 @@ onlyBuiltDependencies:
   - '@whiskeysockets/baileys'
   - esbuild
   - sharp
+
+patchedDependencies:
+  '@mariozechner/pi-ai': patches/@mariozechner__pi-ai.patch