{"schema_version":"onlylabs.public_signal.v1","title":"DigitalOcean (GradientAI) Writing: Advanced Prompt Caching at Scale","description":"DigitalOcean (GradientAI) writing signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351","json_url":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351/signal.json","generated_at":"2026-06-07T21:14:50.566595+00:00","org":{"slug":"digitalocean","name":"DigitalOcean (GradientAI)","category":"neocloud","category_label":"Neocloud","dossier_url":"https://onlylabs.fyi/labs/digitalocean","dossier_json_url":"https://onlylabs.fyi/labs/digitalocean/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351","signal_json":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351/signal.json","source":"https://www.digitalocean.com/blog/advanced-prompt-caching","lab_dossier":"https://onlylabs.fyi/labs/digitalocean","lab_dossier_json":"https://onlylabs.fyi/labs/digitalocean/dossier.json","analysis":"https://onlylabs.fyi/analysis/digitalocean","analysis_json":"https://onlylabs.fyi/analysis/digitalocean/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/digitalocean/evidence.json","category":"https://onlylabs.fyi/neoclouds","category_json":"https://onlylabs.fyi/neoclouds.json","category_feed":"https://onlylabs.fyi/neoclouds/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json?category=neocloud","topic":"https://onlylabs.fyi/topics/talking","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json?category=neocloud","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml?category=neocloud","data_business":null},"answer_pack":{"answer":"DigitalOcean (GradientAI) published Advanced Prompt Caching at Scale. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Substantive blog post on efficient inference · Advanced Prompt Caching at Scale | DigitalOcean © 2026 DigitalOcean, LLC. Sitemap . Dark mode is coming soon. Engineering Advanced Prompt Caching at Scale By Andrew.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","signal_desk":"talking","source_context":{"source_url":"https://www.digitalocean.com/blog/advanced-prompt-caching","source_host":"digitalocean.com","occurred_at":"2026-04-07T19:11:40.933+00:00","first_seen_at":"2026-06-05T22:32:16.504595+00:00","date_source":"rss.item_date","context":null},"context_markers":[{"label":"Lab","value":"DigitalOcean (GradientAI)","source":"signal"},{"label":"Signal desk","value":"talking","source":"signal"},{"label":"Source host","value":"digitalocean.com","source":"source"},{"label":"Notability","value":"Substantive blog post on efficient inference","source":"signal"},{"label":"Watch term","value":"Eval methodology","source":"evidence"},{"label":"Watch term","value":"Infrastructure","source":"evidence"},{"label":"Watch term","value":"Safety and alignment","source":"evidence"}],"evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://www.digitalocean.com/blog/advanced-prompt-caching"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-07T21:14:50.566595+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351/signal.json","dossier_json":"https://onlylabs.fyi/labs/digitalocean/dossier.json","analysis_json":"https://onlylabs.fyi/analysis/digitalocean/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/digitalocean/evidence.json","topic_signals_json":"https://onlylabs.fyi/topics/talking/signals.json?category=neocloud","topic_feed":"https://onlylabs.fyi/topics/talking/feed.xml?category=neocloud","category_signals_json":"https://onlylabs.fyi/signals.json?category=neocloud","data_radar_json":null,"opportunities_json":null},"analysis_playbook":{"objective":"Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.","evidence_focus":["post title","source URL","captured page text","HN traction","linked model or paper references","publication date"],"extraction_questions":["Which themes are labs choosing to explain publicly?","Which posts are attracting outside discussion?","Which writing reframes a recent release, model, hiring wave, or policy stance?","Which posts mention data, evals, infrastructure, safety, or deployment workflows?"],"signal_questions":["What public theme, launch framing, or research direction does this writing signal expose?","Which themes are labs choosing to explain publicly?","Which posts are attracting outside discussion?","Do the 6 related writing signals show a repeated pattern?"],"output_fields":["org","theme","public_framing","traction","evidence_url"],"data_business_relevance":"Data-business lane extraction is scoped to frontier labs; for this category, keep conclusions tied to category-specific strategy, source evidence, and follow-up questions.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351/signal.json","required":true},{"label":"source","url":"https://www.digitalocean.com/blog/advanced-prompt-caching","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/digitalocean/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/digitalocean/evidence.json","required":true},{"label":"topic_signals_json","url":"https://onlylabs.fyi/topics/talking/signals.json?category=neocloud","required":false},{"label":"data_radar_json","url":null,"required":false}],"expected_output":["one-paragraph source-grounded interpretation","category-specific implication","confidence and missing evidence","recommended next source to inspect"],"prompt_seed":"Using only the linked onlylabs JSON, captured source context, and cited evidence, analyze DigitalOcean (GradientAI)'s writing signal \"Advanced Prompt Caching at Scale\" for neocloud strategy."},"semantic_triples":[{"subject":"DigitalOcean (GradientAI)","predicate":"published","object":"Advanced Prompt Caching at Scale","text":"DigitalOcean (GradientAI) published Advanced Prompt Caching at Scale."},{"subject":"Advanced Prompt Caching at Scale","predicate":"is classified as","object":"writing signal","text":"Advanced Prompt Caching at Scale is classified as writing signal."},{"subject":"Advanced Prompt Caching at Scale","predicate":"belongs to","object":"talking desk","text":"Advanced Prompt Caching at Scale belongs to talking desk."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Advanced Prompt Caching at Scale has evidence coverage 1 captured evidence page."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has captured page count","object":"1","text":"Advanced Prompt Caching at Scale has captured page count 1."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has readable page count","object":"1","text":"Advanced Prompt Caching at Scale has readable page count 1."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has related signal count","object":"6","text":"Advanced Prompt Caching at Scale has related signal count 6."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has analysis playbook objective","object":"Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.","text":"Advanced Prompt Caching at Scale has analysis playbook objective Turn public writing and discussion into a readable map of research themes, product framing, policy posture, launch narratives, and market attention.."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has source host","object":"digitalocean.com","text":"Advanced Prompt Caching at Scale has source host digitalocean.com."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has lab","object":"DigitalOcean (GradientAI)","text":"Advanced Prompt Caching at Scale has lab DigitalOcean (GradientAI)."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has signal desk","object":"talking","text":"Advanced Prompt Caching at Scale has signal desk talking."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has source host","object":"digitalocean.com","text":"Advanced Prompt Caching at Scale has source host digitalocean.com."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has notability","object":"Substantive blog post on efficient inference","text":"Advanced Prompt Caching at Scale has notability Substantive blog post on efficient inference."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has watch term","object":"Eval methodology","text":"Advanced Prompt Caching at Scale has watch term Eval methodology."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has watch term","object":"Infrastructure","text":"Advanced Prompt Caching at Scale has watch term Infrastructure."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has watch term","object":"Safety and alignment","text":"Advanced Prompt Caching at Scale has watch term Safety and alignment."}]},"intelligence":{"signal_desk":"talking","answer":"DigitalOcean (GradientAI) published Advanced Prompt Caching at Scale. This talking signal gives public context for research themes, product direction, policy, or launch framing. High-signal details: Substantive blog post on efficient inference · Advanced Prompt Caching at Scale | DigitalOcean © 2026 DigitalOcean, LLC. Sitemap . Dark mode is coming soon. Engineering Advanced Prompt Caching at Scale By Andrew.... onlylabs links this event to 1 captured evidence page and 6 related writing signals.","semantic_triples":[{"subject":"DigitalOcean (GradientAI)","predicate":"published","object":"Advanced Prompt Caching at Scale","text":"DigitalOcean (GradientAI) published Advanced Prompt Caching at Scale."},{"subject":"Advanced Prompt Caching at Scale","predicate":"is classified as","object":"writing signal","text":"Advanced Prompt Caching at Scale is classified as writing signal."},{"subject":"Advanced Prompt Caching at Scale","predicate":"belongs to","object":"talking desk","text":"Advanced Prompt Caching at Scale belongs to talking desk."},{"subject":"Advanced Prompt Caching at Scale","predicate":"has evidence coverage","object":"1 captured evidence page","text":"Advanced Prompt Caching at Scale has evidence coverage 1 captured evidence page."}]},"signal":{"id":"c9fc431b-270c-4412-bdc7-96ce8cd70351","url":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351","json_url":"https://onlylabs.fyi/signals/c9fc431b-270c-4412-bdc7-96ce8cd70351/signal.json","source_url":"https://www.digitalocean.com/blog/advanced-prompt-caching","title":"Advanced Prompt Caching at Scale","summary":"DigitalOcean (GradientAI) published a writing signal. onlylabs watches public writing for research themes, product direction, and model-launch context.","context":null,"kind":{"key":"post_published","label":"Writing"},"org":{"slug":"digitalocean","name":"DigitalOcean (GradientAI)","category":"neocloud"},"occurred_at":"2026-04-07T19:11:40.933+00:00","first_seen_at":"2026-06-05T22:32:16.504595+00:00","date_source":"rss.item_date","evidence_coverage":{"target_pages":1,"captured_pages":1,"readable_pages":1,"capture_methods":["plain"],"missing_page_urls":[],"failed_page_urls":[],"blocked_page_urls":[],"page_urls":["https://www.digitalocean.com/blog/advanced-prompt-caching"]},"facets":{},"traction":{"github_stars":null,"hn_points":null,"hn_comments":null,"hn_story_id":null,"hf_downloads":null,"hf_likes":null},"data_radar":null},"primary_evidence_page":{"url":"https://www.digitalocean.com/blog/advanced-prompt-caching","final_url":"https://www.digitalocean.com/blog/advanced-prompt-caching","title":"Advanced Prompt Caching at Scale","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-07T21:14:50.566595+00:00","bytes":266961,"raw_path":"2f20909eed499d2f08b5e62588b81631d77106026c4904333cb8f482da85e182.html","content_hash":"408232c6b2a9a73c179553074f2ba545faee21afac5a480fcb240425cea775b3","excerpt_chars":1200,"truncated":true,"excerpt":"Advanced Prompt Caching at Scale | DigitalOcean © 2026 DigitalOcean, LLC. Sitemap . Dark mode is coming soon. Engineering Advanced Prompt Caching at Scale By Andrew Dugan Senior AI Technical Content Creator II Updated: April 7, 2026 6 min read <- Back to blog home Introduction Prompt caching is the process of reusing already computed KV states across inference requests in order to save money and reduce latency. Within a single replica, modern inference engines like vLLM , SGLang , and TensorRT-LLM handle it automatically. Incoming prompts are matched against cached prefixes and recomputed only where necessary, without requiring user configurations The problem nobody talks about is what happens when you scale to many replicas. Under round-robin load balancing, a request with an identical prefix has only a 1/N chance of hitting the replica where that prefix is already cached. The cache hit rate that made prompt caching so attractive at one replica degrades almost linearly as your fleet grows, unless you architect around it deliberately. Done right, prompt caching at scale offers 50–90% discounts on cached input tokens and can reduce time-to-first-token (TTFT) latency by up to 80% ...."},"evidence_pages":[{"url":"https://www.digitalocean.com/blog/advanced-prompt-caching","final_url":"https://www.digitalocean.com/blog/advanced-prompt-caching","title":"Advanced Prompt Caching at Scale","http_status":200,"content_type":"text/html; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-07T21:14:50.566595+00:00","bytes":266961,"raw_path":"2f20909eed499d2f08b5e62588b81631d77106026c4904333cb8f482da85e182.html","content_hash":"408232c6b2a9a73c179553074f2ba545faee21afac5a480fcb240425cea775b3","excerpt_chars":1200,"truncated":true,"excerpt":"Advanced Prompt Caching at Scale | DigitalOcean © 2026 DigitalOcean, LLC. Sitemap . Dark mode is coming soon. Engineering Advanced Prompt Caching at Scale By Andrew Dugan Senior AI Technical Content Creator II Updated: April 7, 2026 6 min read <- Back to blog home Introduction Prompt caching is the process of reusing already computed KV states across inference requests in order to save money and reduce latency. Within a single replica, modern inference engines like vLLM , SGLang , and TensorRT-LLM handle it automatically. Incoming prompts are matched against cached prefixes and recomputed only where necessary, without requiring user configurations The problem nobody talks about is what happens when you scale to many replicas. Under round-robin load balancing, a request with an identical prefix has only a 1/N chance of hitting the replica where that prefix is already cached. The cache hit rate that made prompt caching so attractive at one replica degrades almost linearly as your fleet grows, unless you architect around it deliberately. 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