{"id":7742,"date":"2025-10-27T09:12:51","date_gmt":"2025-10-27T09:12:51","guid":{"rendered":"https:\/\/www.adlift.com\/in\/?post_type=blog_post&#038;p=7742"},"modified":"2025-10-27T09:14:51","modified_gmt":"2025-10-27T09:14:51","slug":"understanding-the-evolution-of-llms-from-simple-chatbots-to-intelligent-assistants","status":"publish","type":"blog_post","link":"https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/","title":{"rendered":"Understanding the Evolution of LLMs From Simple Chatbots to Intelligent Assistants"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_66_1 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#Genesis_in_the_Evolution_of_Large_Language_Models_Early_Foundations_of_Language_Processing title=\"Genesis in the Evolution of Large Language Models: Early Foundations of Language Processing\">Genesis in the Evolution of Large Language Models: Early Foundations of Language Processing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#Statistical_Era_in_the_History_of_Large_Language_Models_From_Rules_to_Data-driven_Models title=\"Statistical Era in the History of Large Language Models: From Rules to Data-driven Models\">Statistical Era in the History of Large Language Models: From Rules to Data-driven Models<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#Neural_Network_Revolution_in_LLM_History_Deep_Learning_and_Word_Embeddings title=\"Neural Network Revolution in LLM History: Deep Learning and Word Embeddings\">Neural Network Revolution in LLM History: Deep Learning and Word Embeddings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#The_Transformer_Era_A_Paradigm_Shift_in_LLM_Evolution title=\"The Transformer Era: A Paradigm Shift in LLM Evolution\">The Transformer Era: A Paradigm Shift in LLM Evolution<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#Age_of_Large_Language_Models_GPT-2_to_GPT-4 title=\"Age of Large Language Models: GPT-2 to GPT-4\">Age of Large Language Models: GPT-2 to GPT-4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#Multimodal_Models_and_the_Future_of_LLMs title=\"Multimodal Models and the Future of LLMs\">Multimodal Models and the Future of LLMs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#GPT-5_Approaching_Artificial_General_Intelligence_in_the_Evolution_of_LLMs title=\"GPT-5: Approaching Artificial General Intelligence in the Evolution of LLMs\">GPT-5: Approaching Artificial General Intelligence in the Evolution of LLMs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#GPT-5s_Performance_Benchmarks title=\"GPT-5&#8217;s Performance Benchmarks\">GPT-5&#8217;s Performance Benchmarks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/#Reflecting_on_the_Journey_and_Looking_Ahead_in_LLM_Evolution title=\"Reflecting on the Journey and Looking Ahead in LLM Evolution\">Reflecting on the Journey and Looking Ahead in LLM Evolution<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-weight: 400\">From Siri to ChatGPT, the evolution of LLMs has transformed simple chatbots into sophisticated assistants. Large Language Models (LLMs) now power search, coding help, analytics, customer care, and research. They sit inside workplace tools, shape marketing and product decisions, and speed up how teams learn and ship.<\/span><\/p>\n<p><span style=\"font-weight: 400\">As of October 2025, <\/span><a href=https:\/\/www.adlift.com\/in\/blog\/what-is-chat-gpt-exploring-ai-chatbots\/><span style=\"font-weight: 400\">ChatGPT <\/span><\/a><span style=\"font-weight: 400\">has <\/span><a href=https:\/\/techcrunch.com\/2025\/10\/06\/sam-altman-says-chatgpt-has-hit-800m-weekly-active-users\/ rel=\"nofollow\"><span style=\"font-weight: 400\">800<\/span><\/a><span style=\"font-weight: 400\"> million weekly users, up from <\/span><a href=https:\/\/www.wired.com\/story\/openais-gpt-5-is-here rel=\"nofollow\"><span style=\"font-weight: 400\">700<\/span><\/a><span style=\"font-weight: 400\"> million at the GPT-5 launch on August 7. OpenAI&#8217;s platform has also reached <\/span><a href=https:\/\/techcrunch.com\/2025\/10\/06\/sam-altman-says-chatgpt-has-hit-800m-weekly-active-users\/ rel=\"nofollow\"><span style=\"font-weight: 400\">4<\/span><\/a><span style=\"font-weight: 400\"> million developers and now handles about <\/span><a href=https:\/\/techcrunch.com\/2025\/10\/06\/sam-altman-says-chatgpt-has-hit-800m-weekly-active-users\/ rel=\"nofollow\"><span style=\"font-weight: 400\">6<\/span><\/a><span style=\"font-weight: 400\"> billion tokens per minute through its API, underscoring how quickly builders are operationalizing LLMs.<\/span><\/p>\n<p><span style=\"font-weight: 400\">At the organization level, <\/span><a href=https:\/\/www.hostinger.com\/tutorials\/llm-statistics rel=\"nofollow\"><span style=\"font-weight: 400\">67%<\/span><\/a><span style=\"font-weight: 400\"> of companies report adopting LLMs in operations, and the LLM market is forecast to reach <\/span><a href=https:\/\/www.hostinger.com\/tutorials\/llm-statistics rel=\"nofollow\"><span style=\"font-weight: 400\">$82.1<\/span><\/a><span style=\"font-weight: 400\"> billion by 2033.\u00a0 Given this momentum, leaders need a clear map of how capabilities mature and why they matter across real workflows. Let&#8217;s understand the evolution of LLMs, tracing their journey from early rule-based systems to today&#8217;s advanced AI assistants.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Genesis_in_the_Evolution_of_Large_Language_Models_Early_Foundations_of_Language_Processing\"><\/span>Genesis in the Evolution of Large Language Models: Early Foundations of Language Processing<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">The modern story begins in the 1950s and 1960s with symbolic AI. Researchers wrote explicit rules that matched patterns and returned templated responses. In 1966, Joseph Weizenbaum introduced ELIZA, a chatbot that simulated a Rogerian psychotherapist using keyword triggers and reassembly rules. ELIZA felt conversational, yet it did not understand the meaning.<\/span><\/p>\n<p><span style=\"font-weight: 400\">It revealed what was possible with clever rules and what was missing without learning from data.<\/span> <span style=\"font-weight: 400\">This period is significant in the evolution of large language models because it established a baseline for credible dialogue and highlighted the brittleness of hand-crafted logic. Early systems worked in narrow domains and struggled to scale to open topics. For anyone tracking LLM history, ELIZA remains a useful reference point.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Statistical_Era_in_the_History_of_Large_Language_Models_From_Rules_to_Data-driven_Models\"><\/span>Statistical Era in the History of Large Language Models: From Rules to Data-driven Models<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">By the 1990s, the field shifted from rules to statistics. N-gram language models estimated the probability of a word given its neighbors, powering early speech recognition and text prediction. Hidden Markov Models (HMMs) modeled sequences through hidden states and played a central role in tagging and speech.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Instead of adding rules by hand, these methods learned from corpora (large machine-readable collections of real-world text and speech), making them more adaptable across tasks and domains.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This phase is an anchor in the history of large language models because it put evidence, datasets, and measurable accuracy at the center of NLP. If you think about the evolution of LLMs, the statistical era replaced hand-coded knowledge with learned probabilities. It set up the next leap in LLM evolution, where representation quality would become the core advantage.<\/span><\/p>\n<p><b>Also Read- <\/b><a href=https:\/\/www.adlift.com\/in\/blog\/how-to-use-perplexity-ai\/><b>How to Use the Perplexity AI Tool to Level Up Your Work<\/b><\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Neural_Network_Revolution_in_LLM_History_Deep_Learning_and_Word_Embeddings\"><\/span>Neural Network Revolution in LLM History: Deep Learning and Word Embeddings<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">Neural networks brought dense, learned representations into NLP. In 2013, Google researchers introduced Word2Vec, which represents words as points in a continuous vector space, encoding their semantic relationships as numbers.<\/span><\/p>\n<p><span style=\"font-weight: 400\">A year later, Sequence-to-sequence models learned to encode an input sequence and decode an output sequence, which transformed tasks like translation and summarization.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400\">These advances gave models stronger semantic understanding and better context retention. For readers following the history of LLMs, this is the moment when meaning shifted from sparse counts to vector embeddings, and end-to-end learning took center stage.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Transformer_Era_A_Paradigm_Shift_in_LLM_Evolution\"><\/span>The Transformer Era: A Paradigm Shift in LLM Evolution<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">The Transformer architecture arrived in 2017 with the paper &#8220;<\/span><a href=https:\/\/proceedings.neurips.cc\/paper_files\/paper\/2017\/file\/3f5ee243547dee91fbd053c1c4a845aa-Paper.pdf rel=\"nofollow\"><span style=\"font-weight: 400\">Attention is All You Need<\/span><\/a><span style=\"font-weight: 400\">.&#8221; Self-attention allowed models to consider every token in a sequence at once, which made training faster and scaled context windows far beyond recurrent networks.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Transformers drove two landmark 2018 releases. BERT introduced masked language modeling and bidirectional context for understanding tasks. GPT-1 demonstrated the power of generative pretraining using a transformer decoder with minimal task-specific changes.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Together, they set the recipe that still guides most teams today. In terms of the evolution of LLMs, this inflection point unlocked industrial scale. If you track LLM evolution, this is where long-range reasoning and parallel training became normal.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Age_of_Large_Language_Models_GPT-2_to_GPT-4\"><\/span>Age of Large Language Models: GPT-2 to GPT-4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">Then came scale. In 2019, GPT-2 surprised observers with its long-form fluency and revealed the power of simple next-token prediction trained on large corpora. GPT-3 in 2020 pushed to 175 billion parameters and delivered few-shot and zero-shot performance across many tasks without task-specific fine-tuning. Then, GPT-4 added stronger reasoning and multimodal inputs that combined text with images.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This stretch cemented everyday assistant use cases. Teams began to rely on LLMs for drafting, analysis, summarization, coding help, and knowledge retrieval. In the evolution of LLMs, these models delivered the first credible general assistants by making high-quality generation and a flexible task transfer routine. For readers who study the history of LLMs, this era marks the moment when research prototypes crossed into daily work worldwide.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Multimodal_Models_and_the_Future_of_LLMs\"><\/span>Multimodal Models and the Future of LLMs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">Multimodality changes the shape of everyday work. Models that read text, parse charts, look at product photos, and listen to audio create new kinds of assistance. In 2025, Meta announced Llama 4 with multimodal capabilities, including text, images, video, and audio, and released it as open-source software.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Whereas, in 2024, OpenAI introduced GPT-4o, a real-time voice and vision model that pushed live conversational use cases. In 2025, OpenAI operated a GPT-4.5 research preview and then deprecated it in favor of GPT-4.1 and GPT-5, which clarified the path forward.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Expect the next two years to bring longer context, better retrieval, stronger citation habits, and safer agentic behavior capable of running tighter controls. In the evolution of LLMs, the future looks less like a single model and more like an ecosystem of models, tools, and retrieval, a familiar arc in LLM history where a core invention matures into a platform. From a pure LLM evolution perspective, you will see more consistent reasoning and clearer audit trails.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"GPT-5_Approaching_Artificial_General_Intelligence_in_the_Evolution_of_LLMs\"><\/span>GPT-5: Approaching Artificial General Intelligence in the Evolution of LLMs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">OpenAI released GPT-5 on August 7, 2025, describing it as a major step on the path to Artificial General Intelligence (AGI), while clarifying that the system is not fully autonomous. The launch posts and system card emphasize stronger reasoning, lower hallucination rates than earlier models, and improved tool orchestration and coding.<\/span><\/p>\n<p><span style=\"font-weight: 400\">From a capabilities standpoint, GPT-5 upgrades long-context work, complex planning, retrieval-grounded responses, and multimodal inputs across text, images, and audio. Microsoft announced the same day that GPT-5 was rolling out inside Microsoft 365 Copilot, which helped accelerate adoption in enterprise settings.<\/span><\/p>\n<p><span style=\"font-weight: 400\">In the evolution of LLMs, GPT-5 broadens its capability in complex reasoning and coding, marking the point when multi-step tool use becomes genuinely dependable. For those cataloging LLM history and the broader history of LLMs, this is the clearest example so far of LLM research benchmarks and hands-on productivity.<\/span><\/p>\n<p><span style=\"font-weight: 400\">OpenAI&#8217;s public pages and coverage describe industry use cases that range from complex analysis to applied science. The through-line is the same one you have seen across this guide. Each wave made it easier to ask for outcomes in plain language, then trust the system to execute.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"GPT-5s_Performance_Benchmarks\"><\/span>GPT-5&#8217;s Performance Benchmarks<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">The <\/span><a href=https:\/\/www.usaii.org\/ai-insights\/open-ai-gpt-5-revolutionizing-ai-chatbots-and-beyond rel=\"nofollow\"><span style=\"font-weight: 400\">United States Artificial Intelligence Institute (USAII)<\/span><\/a><span style=\"font-weight: 400\"> compiled GPT-5 benchmark results from OpenAI and other evaluations. These numbers explain why many teams see GPT-5 as the high-water mark in the evolution of LLMs to date. They also show how LLM evolution now tracks practical business impact.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Benchmark<\/b><\/td>\n<td><b>Score \/ Setting<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Competition Math, AIME 2025<\/span><\/td>\n<td><span style=\"font-weight: 400\">94.6% without tools, 100% with Python-enabled reasoning.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Expert-level Math, FrontierMath (Tiers 1\u20133)<\/span><\/td>\n<td><span style=\"font-weight: 400\">32.1% with tools.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Harvard-MIT Math Tournament (HMMT)<\/span><\/td>\n<td><span style=\"font-weight: 400\">96.7% with tools, 93.3% without.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">PhD-level Science, GPQA Diamond<\/span><\/td>\n<td><span style=\"font-weight: 400\">88.4% without tools.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Multi-disciplinary Reasoning, Humanity&#8217;s Last Exam<\/span><\/td>\n<td><span style=\"font-weight: 400\">42.0% with tools.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Real-world Coding, SWE-bench Verified<\/span><\/td>\n<td><span style=\"font-weight: 400\">74.9%.<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400\">Multi-language Code Editing, Aider Polyglot<\/span><\/td>\n<td><span style=\"font-weight: 400\">88%.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><b>Source:<\/b> <a href=https:\/\/www.usaii.org\/ai-insights\/open-ai-gpt-5-revolutionizing-ai-chatbots-and-beyond rel=\"nofollow\"><span style=\"font-weight: 400\">USAII summary of GPT-5 results<\/span><\/a><span style=\"font-weight: 400\">.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reflecting_on_the_Journey_and_Looking_Ahead_in_LLM_Evolution\"><\/span>Reflecting on the Journey and Looking Ahead in LLM Evolution<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400\">From the history of LLMs rooted in rules and ELIZA, through the statistical wave, to deep learning, Transformers, and GPT-4\/5, the path shows a steady climb in context, scale, and capability. Today&#8217;s assistants plan, reason with tools, and fuse modalities.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Looking ahead, themes like trustworthy grounding, safety, and domain specialization will define progress and how teams put models to work. Marketers are already adapting. As a leading <\/span><a href=https:\/\/www.adlift.com\/ai-seo-services\/><b>AI SEO agency<\/b><\/a><span style=\"font-weight: 400\">, AdLift has built its in-house tool, <\/span><a href=https:\/\/tesseract.adlift.com\/ rel=\"nofollow\"><b>Tesseract AI<\/b><\/a><span style=\"font-weight: 400\">, which shows where brands appear in AI answers, identifies which pages are cited, and guides content adjustments for broader inclusion across major platforms.<\/span><\/p>\n<p><span style=\"font-weight: 400\">That level of insight is becoming essential as assistants become a primary discovery surface. As the evolution of LLMs accelerates, expect faster iteration, richer multimodality, and stronger outcome-based evaluation. Monitor LLM evolution, build cite-worthy content, and treat the history of LLMs as a benchmark-driven playbook.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Also Read &#8211;<\/span><a href=https:\/\/www.adlift.com\/in\/blog\/llm-txt-explained\/><span style=\"font-weight: 400\"> llm.txt File for SEO: Generator, Example, and Setup Guide<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>From Siri to ChatGPT, the evolution of LLMs has transformed simple chatbots into sophisticated assistants. Large Language Models (LLMs) now power search, coding help, analytics, customer care, and research. They sit inside workplace tools, shape marketing and product decisions, and speed up how teams learn and ship. As of October 2025, ChatGPT has 800 million &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/www.adlift.com\/in\/blog\/evolution-of-llms\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Understanding the Evolution of LLMs From Simple Chatbots to Intelligent Assistants&#8221;<\/span><\/a><\/p>\n","protected":false},"author":110,"featured_media":7743,"parent":0,"menu_order":0,"template":"","format":"standard","meta":[],"post-tag":[],"blog-category":[153],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Evolution of LLMs From Chatbots to Intelligent Assistants<\/title>\n<meta name=\"description\" content=\"Learn the evolution of LLMs from rules to transformers to GPT-5 and how multimodality and adoption reshape assistants across search, coding, analytics, and CX.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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