chore: update migration guide

Author: smakosh

apps/ui/src/content/migrations/openrouter.md

@@ -20,23 +20,6 @@ Change your base URL and API key:
 + const apiKey = process.env.LLM_GATEWAY_API_KEY;
 ```
 
-## Why Teams Switch to LLM Gateway
-
-| Feature                  | OpenRouter                   | LLM Gateway               |
-| ------------------------ | ---------------------------- | ------------------------- |
-| Gateway fee (Pro)        | 5%                           | **2.5%** (50% lower)      |
-| OpenAI-compatible API    | Yes                          | Yes                       |
-| Model coverage           | 300+ models                  | 180+ models               |
-| Analytics dashboard      | Via third-party integrations | **Built-in, per-request** |
-| Required headers         | HTTP-Referer, X-Title        | **Just Authorization**    |
-| Self-hosting option      | No                           | **Yes (AGPLv3)**          |
-| Anthropic-compatible API | No                           | **Yes (/v1/messages)**    |
-| Native AI SDK provider   | Yes                          | Yes                       |
-
-The biggest differences: lower fees, built-in analytics, simpler API (no extra headers), and the option to self-host.
-
-For a detailed breakdown, see [LLM Gateway vs OpenRouter](/compare/open-router).
-
 ## Migration Steps
 
 ### 1. Get Your LLM Gateway API Key
@@ -50,7 +33,7 @@ Sign up at [llmgateway.io/signup](/signup) and create an API key from your dashb
 # OPENROUTER_API_KEY=sk-or-...
 
 # Add LLM Gateway credentials
-export LLM_GATEWAY_API_KEY=llmgtwy_your_key_here
+LLM_GATEWAY_API_KEY=llmgtwy_your_key_here
 ```
 
 ### 3. Update Your Code
@@ -63,13 +46,11 @@ const response = await fetch("https://openrouter.ai/api/v1/chat/completions", {
   method: "POST",
   headers: {
     Authorization: `Bearer ${process.env.OPENROUTER_API_KEY}`,
-    "Content-Type": "application/json",
-    "HTTP-Referer": "https://your-site.com",
-    "X-Title": "Your App Name",
+    "Content-Type": "application/json"
   },
   body: JSON.stringify({
-    model: "anthropic/claude-3-5-sonnet",
-    messages: [{ role: "user", content: "Hello!" }],
+    model: "openai/gpt-5.2",
+    messages: [{ role: "user", content: "Hello!" }]
   }),
 });
 
@@ -78,11 +59,11 @@ const response = await fetch("https://api.llmgateway.io/v1/chat/completions", {
   method: "POST",
   headers: {
     Authorization: `Bearer ${process.env.LLM_GATEWAY_API_KEY}`,
-    "Content-Type": "application/json",
+    "Content-Type": "application/json"
   },
   body: JSON.stringify({
-    model: "anthropic/claude-3-5-sonnet-20241022",
-    messages: [{ role: "user", content: "Hello!" }],
+    model: "gpt-5.2",
+    messages: [{ role: "user", content: "Hello!" }]
   }),
 });
 ```
@@ -95,17 +76,13 @@ import OpenAI from "openai";
 // Before (OpenRouter)
 const client = new OpenAI({
   baseURL: "https://openrouter.ai/api/v1",
-  apiKey: process.env.OPENROUTER_API_KEY,
-  defaultHeaders: {
-    "HTTP-Referer": "https://your-site.com",
-    "X-Title": "Your App Name",
-  },
+  apiKey: process.env.OPENROUTER_API_KEY
 });
 
 // After (LLM Gateway)
 const client = new OpenAI({
   baseURL: "https://api.llmgateway.io/v1",
-  apiKey: process.env.LLM_GATEWAY_API_KEY,
+  apiKey: process.env.LLM_GATEWAY_API_KEY
 });
 
 // Usage remains the same
@@ -153,8 +130,7 @@ Most model names are compatible, but here are some common mappings:
 
 | OpenRouter Model                 | LLM Gateway Model                                                 |
 | -------------------------------- | ----------------------------------------------------------------- |
-| gpt-5.2                          | gpt-5.2 or openai/gpt-5.2                                         |
-| claude-opus-4-5-20251101         | claude-opus-4-5-20251101 or anthropic/claude-opus-4-5-20251101    |
+| openai/gpt-5.2                   | gpt-5.2 or openai/gpt-5.2                                         |
 | gemini/gemini-3-flash-preview    | gemini-3-flash-preview or google-ai-studio/gemini-3-flash-preview |
 | bedrock/claude-opus-4-5-20251101 | claude-opus-4-5-20251101 or aws-bedrock/claude-opus-4-5-20251101  |
 
@@ -176,15 +152,6 @@ for await (const chunk of stream) {
 }
 ```
 
-## What You Get After Switching
-
-- **50% lower gateway fees** on Pro plan (2.5% vs OpenRouter's 5%)
-- **Per-request analytics** — See exactly what each API call costs
-- **Simpler integration** — No HTTP-Referer or X-Title headers required
-- **Response caching** — Automatic caching reduces costs for repeated requests
-- **Self-hosting option** — Run on your own infrastructure if you need full control
-- **Anthropic API support** — Use `/v1/messages` for Anthropic-native integrations
-
 ## Full Comparison
 
 Want to see a detailed breakdown of all features? Check out our [LLM Gateway vs OpenRouter comparison page](/compare/open-router).