Thai chili, also known as bird's eye chili, is a small, fiery pepper commonly used in Thai cuisine. It measures about 1 to 2 inches in length and can range from green to red as it ripens. Known for its intense heat, it adds a spicy kick to dishes like som tam (papaya salad) and tom yum soup. These chilies are rich in vitamins A and C, making them not only flavorful but also nutritious. They are often used fresh, dried, or in sauces, and their heat level can vary depending on the specific variety and growing conditions.