diff --git a/.env.sample b/.env.sample
index 8c83710..1476ca0 100644
--- a/.env.sample
+++ b/.env.sample
@@ -9,6 +9,7 @@
 # Examples:
 #   OpenAI models: gpt-4o, gpt-4o-mini, gpt-4-vision-preview
 #   OpenRouter models: openrouter/anthropic/claude-3.5-sonnet, openrouter/google/gemini-pro-vision
+#   Requesty models: requesty/openai/gpt-4o, requesty/anthropic/claude-sonnet-4-5
 #   OpenAI-Compatible models: openai/hunyuan-turbo-vision, openai/doubao-1-5-vision-pro-32k-250115
 MODEL_NAME=gpt-4o
 
@@ -24,6 +25,10 @@ MODEL_NAME=gpt-4o
 # OPENROUTER_API_KEY=your-openrouter-api-key-here
 # OPENROUTER_API_BASE=https://openrouter.ai/api/v1/  # [OPTIONAL]
 
+# Requesty API Key (for Requesty models) - get one at https://app.requesty.ai/api-keys
+# REQUESTY_API_KEY=your-requesty-api-key-here
+# REQUESTY_API_BASE=https://router.requesty.ai/v1  # [OPTIONAL]
+
 # =============================================================================
 # Generation Parameters (Optional)
 # =============================================================================
@@ -49,6 +54,10 @@ RETRY_TIMES=3
 # MODEL_NAME=openrouter/anthropic/claude-sonnet-4
 # OPENROUTER_API_KEY=sk-or-v1-...
 
+# For Requesty GPT-4o:
+# MODEL_NAME=requesty/openai/gpt-4o
+# REQUESTY_API_KEY=...
+
 # For Doubao 1.5 Vision Pro:
 # MODEL_NAME=openai/doubao-1-5-vision-pro-32k-250115
 # OPENAI_API_KEY=sk-...
diff --git a/README.md b/README.md
index d551d04..453d671 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ MarkPDFDown is designed to simplify the process of converting PDF documents into
 
 - **PDF to Markdown Conversion**: Transform any PDF document into well-formatted Markdown
 - **Image to Markdown Conversion**: Transform image into well-formatted Markdown
-- **Multi-Provider Support**: Supports OpenAI and OpenRouter through LiteLLM
+- **Multi-Provider Support**: Supports OpenAI, OpenRouter, and Requesty through LiteLLM
 - **Flexible CLI**: Both file-based and pipe-based usage modes
 - **Format Preservation**: Maintains headings, lists, tables, and other formatting elements
 - **Page Range Selection**: Convert specific page ranges from PDF documents
@@ -92,6 +92,8 @@ MODEL_NAME=gpt-4o
 OPENAI_API_KEY=your-openai-api-key
 # or for OpenRouter
 OPENROUTER_API_KEY=your-openrouter-api-key
+# or for Requesty
+REQUESTY_API_KEY=your-requesty-api-key
 
 # Optional Parameters
 TEMPERATURE=0.3
@@ -115,6 +117,13 @@ MODEL_NAME=openrouter/google/gemini-pro-vision
 MODEL_NAME=openrouter/meta-llama/llama-3.2-90b-vision
 ```
 
+#### Requesty Models
+Get your API key at https://app.requesty.ai/api-keys
+```bash
+MODEL_NAME=requesty/openai/gpt-4o
+MODEL_NAME=requesty/anthropic/claude-sonnet-4-5
+```
+
 ## Usage
 
 ### File Mode (Recommended)
@@ -172,6 +181,12 @@ docker run -i \
   -e MODEL_NAME=openrouter/anthropic/claude-3.5-sonnet \
   -e OPENROUTER_API_KEY=your-openrouter-key \
   markpdfdown < input.pdf > output.md
+
+# Using Requesty
+docker run -i \
+  -e MODEL_NAME=requesty/openai/gpt-4o \
+  -e REQUESTY_API_KEY=your-requesty-key \
+  markpdfdown < input.pdf > output.md
 ```
 
 ## Development Setup
diff --git a/src/markpdfdown/config.py b/src/markpdfdown/config.py
index 6381ed0..a8eeeae 100644
--- a/src/markpdfdown/config.py
+++ b/src/markpdfdown/config.py
@@ -17,7 +17,7 @@ class Config(BaseModel):
     # Model configuration
     model_name: str = Field(
         default="gpt-4o",
-        description="LLM model name (e.g., gpt-4o, openrouter/anthropic/claude-3.5-sonnet)",
+        description="LLM model name (e.g., gpt-4o, openrouter/anthropic/claude-3.5-sonnet, requesty/openai/gpt-4o)",
     )
 
     # Generation parameters