SVG Circle with inner blur.svg

<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100" fill="none">
  <g filter="url(#filter0_i_674_2878)">
    <circle cx="50" cy="50" r="50" fill="white"/>
  </g>
  <defs>
    <filter id="filter0_i_674_2878" x="0" y="0" width="100" height="104" filterUnits="userSpaceOnUse" color-interpolation-filters="sRGB">
      <feFlood flood-opacity="0" result="BackgroundImageFix"/>
      <feBlend mode="normal" in="SourceGraphic" in2="BackgroundImageFix" result="shape"/>
      <feColorMatrix in="SourceAlpha" type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 127 0" result="hardAlpha"/>
      <feOffset dy="4"/>
      <feGaussianBlur stdDeviation="8"/>
      <feComposite in2="hardAlpha" operator="arithmetic" k2="-1" k3="1"/>
      <feColorMatrix type="matrix" values="0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.25 0"/>
      <feBlend mode="normal" in2="shape" result="effect1_innerShadow_674_2878"/>
    </filter>
  </defs>
</svg>