{"version":"1.0","type":"rich","provider_name":"Tech & Business","provider_url":"https://techandbusiness.org","title":"GPT-5.4 Pro Sets New FrontierMath Record, Solves First-Ever Tier 4 Problem","author_name":"T&B Newswire · AI","thumbnail_url":"https://substackcdn.com/image/fetch/$s_!HSol!,w_1200,h_675,c_fill,f_jpg,q_auto:good,fl_progressive:steep,g_auto/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F63741d46-1c8f-46b4-a6b2-bdf60061ecd9_800x1000.jpeg","width":600,"height":400,"html":"<blockquote class=\"tb-newswire-embed\" style=\"max-width:600px;border-left:3px solid #22d3ee;padding:12px 16px;margin:0;font-family:-apple-system,system-ui,sans-serif;background:#09090b;border-radius:0 8px 8px 0;\">\n      <p style=\"margin:0 0 8px;font-size:10px;font-weight:600;letter-spacing:0.1em;color:#71717a;text-transform:uppercase;\">T&B NEWSWIRE · AI</p>\n      <p style=\"margin:0 0 8px;font-size:18px;font-weight:700;line-height:1.3;color:#fff;\"><a href=\"https://techandbusiness.org/newswire/LlReJGxHJ5ZpQFIzawP4hH\" style=\"color:#fff;text-decoration:none;\">GPT-5.4 Pro Sets New FrontierMath Record, Solves First-Ever Tier 4 Problem</a></p>\n      <p style=\"margin:0;font-size:14px;color:#a1a1aa;line-height:1.5;\">OpenAI's GPT-5.4 Pro set a new high-water mark on FrontierMath, Epoch AI's benchmark of research-grade mathematics, scoring 50% on Tiers 1 through 3 and 38% on Tier 4.\n\nThe model solved one Tier 4 pro...</p>\n    </blockquote>"}