{"id":765,"date":"2024-05-07T11:42:57","date_gmt":"2024-05-07T11:42:57","guid":{"rendered":"https:\/\/kb.shortpixel.com\/docs\/i-already-used-spio-for-image-optimization-what-setting-should-i-use-with-spai\/"},"modified":"2025-08-27T08:43:35","modified_gmt":"2025-08-27T08:43:35","password":"","slug":"i-already-used-spio-for-image-optimization-what-setting-should-i-use-with-spai","status":"publish","type":"docs","link":"https:\/\/kb.shortpixel.com\/knowledge-base\/article\/i-already-used-spio-for-image-optimization-what-setting-should-i-use-with-spai\/","title":{"rendered":"I already used SPIO for image optimization, what settings should I use with SPAI?"},"content":{"rendered":"\n<p>If you already optimized all the images of your website using <a href=\"https:\/\/wordpress.org\/plugins\/shortpixel-image-optimiser\/\" rel=\"noopener\">ShortPixel Image Optimizer<\/a> (SPIO) and now you consider starting to use <a href=\"https:\/\/wordpress.org\/plugins\/shortpixel-adaptive-images\/\" rel=\"noopener\">ShortPixel Adaptive Images<\/a> (SPAI) you may wonder: what would be the appropriate <a href=\"https:\/\/help.shortpixel.com\/article\/11-lossy-glossy-or-lossless-which-one-is-the-best-for-me\" target=\"_blank\" rel=\"noopener\">image optimization settings<\/a>?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>If you <strong>do not add new images to your website<\/strong>, then you can just use the <strong>Lossless<\/strong> compression type with SPAI (Settings > ShortPixel AI). This way the images will be served from <a href=\"https:\/\/help.shortpixel.com\/article\/62-where-does-the-cdn-has-pops\" target=\"_blank\" rel=\"noopener\">ShortPixel&#8217;s CDN<\/a> while having the same quality.<\/li>\n\n\n\n<li>If you <strong>constantly add new images to your website<\/strong>, then there are 3 possible approaches, depending on your situation:\n<ul class=\"wp-block-list\">\n<li>if you optimized the images with SPIO with the\u00a0<strong>Lossless<\/strong> compression type<em>,<\/em>\u00a0then you can use any method with SPAI: <strong>Lossy<\/strong>, <strong>Glossy<\/strong> or <strong>Lossless<\/strong>.<\/li>\n\n\n\n<li>If you already used <strong>Lossy or Glossy<\/strong> with SPIO and you plan on <strong>uninstalling SPIO<\/strong> after installing SPAI, then using anything other than Lossless with SPAI could make the old images look a bit blurry. And using Lossless means that the newly added images won&#8217;t be optimally optimized. The solution in this case is to <a href=\"https:\/\/help.shortpixel.com\/article\/14-can-i-restore-my-images-what-happens-with-the-originals\" target=\"_blank\" rel=\"noopener\">restore the images optimized already with SPIO<\/a> and then choose the appropriate image optimization setting on SPAI, e.g. <strong>Lossy or Glossy<\/strong>.<\/li>\n\n\n\n<li>If you already used <strong>Lossy or Glossy<\/strong> with SPIO and you plan on <strong>keeping SPIO installed<\/strong> together with SPAI, you should set SPAI to <strong>Lossless<\/strong> to prevent over-compression.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">WebP and AVIF<\/h2>\n\n\n\n<p>In addition to the optimization setting previously explained, if you plan on <strong>keeping SPIO installed<\/strong> together with SPAI, and if you want to serve your images as WebP or AVIF, you must disable it on SPIO and enable it on SPAI:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Go to Settings > ShortPixel > WebP\/AVIF &amp; CDN, and disable the options to deliver \/ serve images.<img decoding=\"async\" width=\"1884\" height=\"1047\" class=\"wp-image-2082\" style=\"width: px;\" src=\"https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif.png\" alt=\"\" srcset=\"https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif.png 1884w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif-300x167.png 300w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif-1024x569.png 1024w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif-768x427.png 768w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif-1536x854.png 1536w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/shortpixel-webp-avif-360x200.png 360w\" sizes=\"(max-width: 1884px) 100vw, 1884px\" \/><br><\/li>\n\n\n\n<li>Go to Settings > ShortPixel AI > Compression<em>\u00a0<\/em>and enable &#8220;<strong>Next-gen Images Support<\/strong>&#8220;.<br><img decoding=\"async\" width=\"1383\" height=\"695\" class=\"wp-image-2083\" style=\"width: px;\" src=\"https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/spai-next-gen-images-support.png\" alt=\"\" srcset=\"https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/spai-next-gen-images-support.png 1383w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/spai-next-gen-images-support-300x151.png 300w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/spai-next-gen-images-support-1024x515.png 1024w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/spai-next-gen-images-support-768x386.png 768w, https:\/\/kb.shortpixel.com\/wp-content\/uploads\/2024\/05\/spai-next-gen-images-support-360x181.png 360w\" sizes=\"(max-width: 1383px) 100vw, 1383px\" \/><br><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>If you already optimized all the images of your website using ShortPixel Image Optimizer (SPIO) and now you consider starting to use ShortPixel Adaptive Images (SPAI) you may wonder: what would be the appropriate image optimization settings? WebP and AVIF In addition to the optimization setting previously explained, if you plan on keeping SPIO installed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"doc_category":[35],"glossaries":[],"doc_tag":[],"class_list":["post-765","docs","type-docs","status-publish","hentry","doc_category-shortpixel-adaptive-images"],"blocksy_meta":[],"year_month":"2026-04","word_count":294,"total_views":"1207","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"admin","author_nicename":"admin_mdli53m5","author_url":"https:\/\/kb.shortpixel.com\/author\/admin_mdli53m5\/"},"doc_category_info":[{"term_name":"ShortPixel Adaptive Images","term_url":"https:\/\/kb.shortpixel.com\/knowledge-base\/category\/shortpixel-adaptive-images\/"}],"doc_tag_info":[],"knowledge_base_info":[],"knowledge_base_slug":[],"_links":{"self":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs\/765","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs"}],"about":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/types\/docs"}],"author":[{"embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/comments?post=765"}],"version-history":[{"count":1,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs\/765\/revisions"}],"predecessor-version":[{"id":2084,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/docs\/765\/revisions\/2084"}],"wp:attachment":[{"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/media?parent=765"}],"wp:term":[{"taxonomy":"doc_category","embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/doc_category?post=765"},{"taxonomy":"glossaries","embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/glossaries?post=765"},{"taxonomy":"doc_tag","embeddable":true,"href":"https:\/\/kb.shortpixel.com\/wp-json\/wp\/v2\/doc_tag?post=765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}