{"schema_version":"onlylabs.public_signal.v1","title":"Amazon (Nova) Release: amazon-science/chronos-forecasting v2.3.0","description":"Amazon (Nova) release signal with public source context, captured evidence pages, related signals, and data-business radar classification.","url":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388","json_url":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388/signal.json","generated_at":"2026-06-27T00:39:56.908Z","evidence_latest_fetched_at":"2026-06-19T07:02:58.357774+00:00","signal_first_seen_at":"2026-06-19T07:01:15.929727+00:00","org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab","category_label":"Frontier lab","dossier_url":"https://onlylabs.fyi/labs/amazon","dossier_json_url":"https://onlylabs.fyi/labs/amazon/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388","signal_json":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388/signal.json","source":"https://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0","lab_dossier":"https://onlylabs.fyi/labs/amazon","lab_dossier_json":"https://onlylabs.fyi/labs/amazon/dossier.json","analysis":"https://onlylabs.fyi/analysis/amazon","analysis_json":"https://onlylabs.fyi/analysis/amazon/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/amazon/evidence.json","category":"https://onlylabs.fyi/frontier","category_json":"https://onlylabs.fyi/frontier.json","category_feed":"https://onlylabs.fyi/frontier/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","topic":"https://onlylabs.fyi/topics/releases","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json","topic_feed":"https://onlylabs.fyi/topics/releases/feed.xml","data_business":null},"answer_pack":{"answer":"Amazon (Nova) published amazon-science/chronos-forecasting v2.3.0 (amazon-science/chronos-forecasting). This release signal is evidence of what shipped, changed, or was packaged for users. High-signal details: Pretrained time series forecasting models from Amazon Science. · 2.3.0 Repository: amazon-science/chronos-forecasting Tag: v2.3.0 Published: 2026-06-18T11:30:31Z Prerelease: no Release notes: What's Changed 🚀 Highlights * New [cloud.... onlylabs links this event to 1 captured evidence page and 6 related release signals.","signal_desk":"releases","source_context":{"source_url":"https://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0","source_host":"github.com","occurred_at":"2026-06-18T11:30:31+00:00","first_seen_at":"2026-06-19T07:01:15.929727+00:00","date_source":"source","context":"amazon-science/chronos-forecasting"},"context_markers":[{"label":"Lab","value":"Amazon (Nova)","source":"signal"},{"label":"Signal desk","value":"releases","source":"signal"},{"label":"Source host","value":"github.com","source":"source"},{"label":"Repository","value":"amazon-science/chronos-forecasting","source":"source"},{"label":"Release","value":"2.3.0","source":"source"},{"label":"Context","value":"Pretrained time series forecasting models from Amazon Science.","source":"signal"},{"label":"Notability","value":"Routine minor release of forecasting library.","source":"signal"},{"label":"Watch term","value":"Model card","source":"model"},{"label":"Watch term","value":"Data pipeline","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://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-19T07:02:58.357774+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388/signal.json","dossier_json":"https://onlylabs.fyi/labs/amazon/dossier.json","analysis_json":"https://onlylabs.fyi/analysis/amazon/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/amazon/evidence.json","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json","topic_feed":"https://onlylabs.fyi/topics/releases/feed.xml","category_signals_json":"https://onlylabs.fyi/signals.json","data_radar_json":null,"opportunities_json":null},"analysis_playbook":{"objective":"Turn model cards, repository releases, and launch artifacts into a current view of what shipped and what changed.","evidence_focus":["model card","release note","version or tag","pipeline tag","license","downloads, likes, stars, and linked papers"],"extraction_questions":["What actually shipped, and through which public artifact?","Which releases include inspectable model, repo, paper, or package evidence?","Which launches create new eval, data, infra, or deployment needs?","Which shipped signals are missing captured page context?"],"signal_questions":["What changed in this release, and what downstream data or infrastructure need could it create?","What actually shipped, and through which public artifact?","Which releases include inspectable model, repo, paper, or package evidence?","Do the 6 related release signals show a repeated pattern?"],"output_fields":["org","release_type","artifact","traction","data_business_lane","evidence_url"],"data_business_relevance":"Release signals show the hard edge of lab execution and help connect data-business opportunities to concrete model, repo, and deployment changes.","required_sources":[{"label":"signal_json","url":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388/signal.json","required":true},{"label":"source","url":"https://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0","required":true},{"label":"dossier_json","url":"https://onlylabs.fyi/labs/amazon/dossier.json","required":true},{"label":"analysis_evidence_json","url":"https://onlylabs.fyi/analysis/amazon/evidence.json","required":true},{"label":"topic_signals_json","url":"https://onlylabs.fyi/topics/releases/signals.json","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 Amazon (Nova)'s release signal \"amazon-science/chronos-forecasting v2.3.0\" for frontier lab strategy."},"semantic_triples":[{"subject":"Amazon (Nova)","predicate":"released","object":"amazon-science/chronos-forecasting v2.3.0","text":"Amazon (Nova) released amazon-science/chronos-forecasting v2.3.0."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"is classified as","object":"release signal","text":"amazon-science/chronos-forecasting v2.3.0 is classified as release signal."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"belongs to","object":"releases desk","text":"amazon-science/chronos-forecasting v2.3.0 belongs to releases desk."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has context","object":"amazon-science/chronos-forecasting","text":"amazon-science/chronos-forecasting v2.3.0 has context amazon-science/chronos-forecasting."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has evidence coverage","object":"1 captured evidence page","text":"amazon-science/chronos-forecasting v2.3.0 has evidence coverage 1 captured evidence page."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has captured page count","object":"1","text":"amazon-science/chronos-forecasting v2.3.0 has captured page count 1."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has readable page count","object":"1","text":"amazon-science/chronos-forecasting v2.3.0 has readable page count 1."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has related signal count","object":"6","text":"amazon-science/chronos-forecasting v2.3.0 has related signal count 6."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has analysis playbook objective","object":"Turn model cards, repository releases, and launch artifacts into a current view of what shipped and what changed.","text":"amazon-science/chronos-forecasting v2.3.0 has analysis playbook objective Turn model cards, repository releases, and launch artifacts into a current view of what shipped and what changed.."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has source host","object":"github.com","text":"amazon-science/chronos-forecasting v2.3.0 has source host github.com."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has lab","object":"Amazon (Nova)","text":"amazon-science/chronos-forecasting v2.3.0 has lab Amazon (Nova)."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has signal desk","object":"releases","text":"amazon-science/chronos-forecasting v2.3.0 has signal desk releases."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has source host","object":"github.com","text":"amazon-science/chronos-forecasting v2.3.0 has source host github.com."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has repository","object":"amazon-science/chronos-forecasting","text":"amazon-science/chronos-forecasting v2.3.0 has repository amazon-science/chronos-forecasting."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has release","object":"2.3.0","text":"amazon-science/chronos-forecasting v2.3.0 has release 2.3.0."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has context","object":"Pretrained time series forecasting models from Amazon Science.","text":"amazon-science/chronos-forecasting v2.3.0 has context Pretrained time series forecasting models from Amazon Science.."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has notability","object":"Routine minor release of forecasting library.","text":"amazon-science/chronos-forecasting v2.3.0 has notability Routine minor release of forecasting library.."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has watch term","object":"Model card","text":"amazon-science/chronos-forecasting v2.3.0 has watch term Model card."}]},"intelligence":{"signal_desk":"releases","answer":"Amazon (Nova) published amazon-science/chronos-forecasting v2.3.0 (amazon-science/chronos-forecasting). This release signal is evidence of what shipped, changed, or was packaged for users. High-signal details: Pretrained time series forecasting models from Amazon Science. · 2.3.0 Repository: amazon-science/chronos-forecasting Tag: v2.3.0 Published: 2026-06-18T11:30:31Z Prerelease: no Release notes: What's Changed 🚀 Highlights * New [cloud.... onlylabs links this event to 1 captured evidence page and 6 related release signals.","semantic_triples":[{"subject":"Amazon (Nova)","predicate":"released","object":"amazon-science/chronos-forecasting v2.3.0","text":"Amazon (Nova) released amazon-science/chronos-forecasting v2.3.0."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"is classified as","object":"release signal","text":"amazon-science/chronos-forecasting v2.3.0 is classified as release signal."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"belongs to","object":"releases desk","text":"amazon-science/chronos-forecasting v2.3.0 belongs to releases desk."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has context","object":"amazon-science/chronos-forecasting","text":"amazon-science/chronos-forecasting v2.3.0 has context amazon-science/chronos-forecasting."},{"subject":"amazon-science/chronos-forecasting v2.3.0","predicate":"has evidence coverage","object":"1 captured evidence page","text":"amazon-science/chronos-forecasting v2.3.0 has evidence coverage 1 captured evidence page."}]},"signal":{"id":"022dbd0b-b185-4364-be11-63d0de763388","url":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388","json_url":"https://onlylabs.fyi/signals/022dbd0b-b185-4364-be11-63d0de763388/signal.json","source_url":"https://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0","title":"amazon-science/chronos-forecasting v2.3.0","summary":"Amazon (Nova) published release notes. onlylabs watches releases for what actually shipped.","context":"amazon-science/chronos-forecasting","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-06-18T11:30:31+00:00","first_seen_at":"2026-06-19T07:01:15.929727+00:00","date_source":"source","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://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0"]},"facets":{"repo":"amazon-science/chronos-forecasting"},"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":{"is_primary":true,"source_match":true,"url":"https://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0","final_url":"https://github.com/amazon-science/chronos-forecasting/releases/tag/v2.3.0","title":"amazon-science/chronos-forecasting v2.3.0","http_status":200,"content_type":"application/json","capture_method":"plain","fetched_at":"2026-06-19T07:02:58.357774+00:00","bytes":6842,"raw_path":"705ef6b750c2fb62082f89970989d12b3631a74ee1bd8da85c8addd095cd5e52.json","content_hash":"98b2bc8a1c6081110c54df555549ef2313c51ac56d01e45334377b56af5e053a","excerpt_chars":1200,"truncated":true,"excerpt":"2.3.0 Repository: amazon-science/chronos-forecasting Tag: v2.3.0 Published: 2026-06-18T11:30:31Z Prerelease: no Release notes: What's Changed 🚀 Highlights * New [cloud deployment guide](https://auto.gluon.ai/cloud/stable/tutorials/foundation-model-timeseries.html): run Chronos-2 on AWS in 3 lines of code * Fine-tuning with `Chronos2Pipeline.fit()` now supports larger-than-memory datasets * New efficient preprocessing module `chronos.chronos2.preprocess` resulting in up to 20x faster input preprocessing for Chronos-2 * Support for `transformers>=5` and `pandas>=3` ❗Deprecations & breaking changes * When providing inputs to `Chronos2Pipeline` as a `list[dict]`, all dictionaries must share the same schema (same number of `target` dimensions and same covariate keys). To forecast inputs with different schemas, loop over them and call the model once per schema. ```python ❌ Different covariate keys across items — no longer allowed pipeline.predict([ {\"target\": [...], \"past_covariates\": {\"price\": [...], \"promo\": [...]}}, {\"target\": [...], \"past_covariates\": {\"price\": [...]}}, ]) ❌ Mixed univariate and multivariate targets — no longer allowed pipeline.predict([ {\"target\": np.zeros(100)},..."},"evidence_pages":[],"related_signals":[{"id":"82db920f-fbf9-47f8-bca8-9da403ccca84","url":"https://onlylabs.fyi/signals/82db920f-fbf9-47f8-bca8-9da403ccca84","source_url":"https://github.com/amazon-science/StaminaBench/releases/tag/v0.1.0","title":"amazon-science/StaminaBench v0.1.0","context":"amazon-science/StaminaBench","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-06-19T12:48:41+00:00","first_seen_at":"2026-06-20T07:00:24.771019+00:00","date_source":"source"},{"id":"3a828c2a-3793-49a1-90b0-d95ae11ff399","url":"https://onlylabs.fyi/signals/3a828c2a-3793-49a1-90b0-d95ae11ff399","source_url":"https://github.com/amazon-science/foundcause/releases/tag/v1.0","title":"amazon-science/foundcause v1.0","context":"amazon-science/foundcause","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-06-17T01:35:34+00:00","first_seen_at":"2026-06-17T07:01:21.192218+00:00","date_source":"source"},{"id":"89b0c3de-b08f-4773-9645-a6dbf2737cc0","url":"https://onlylabs.fyi/signals/89b0c3de-b08f-4773-9645-a6dbf2737cc0","source_url":"https://github.com/amazon-science/uniqsketch/releases/tag/v1.3.0","title":"amazon-science/uniqsketch v1.3.0","context":"amazon-science/uniqsketch","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-06-11T19:35:57+00:00","first_seen_at":"2026-06-12T07:00:21.202629+00:00","date_source":"source"},{"id":"48b07581-1baa-451f-a141-2e3d7a984fcf","url":"https://onlylabs.fyi/signals/48b07581-1baa-451f-a141-2e3d7a984fcf","source_url":"https://github.com/amazon-science/concurry/releases/tag/v0.13.2","title":"amazon-science/concurry v0.13.2","context":"amazon-science/concurry","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-05-21T12:25:34+00:00","first_seen_at":"2026-06-05T20:58:37.464059+00:00","date_source":"source"},{"id":"8d82442b-99a9-48ca-a544-ce326351d487","url":"https://onlylabs.fyi/signals/8d82442b-99a9-48ca-a544-ce326351d487","source_url":"https://github.com/amazon-science/concurry/releases/tag/v0.13.1","title":"amazon-science/concurry v0.13.1","context":"amazon-science/concurry","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-05-21T11:48:18+00:00","first_seen_at":"2026-06-05T20:58:37.464059+00:00","date_source":"source"},{"id":"8470f354-8d69-4dbf-905a-d1a59df46142","url":"https://onlylabs.fyi/signals/8470f354-8d69-4dbf-905a-d1a59df46142","source_url":"https://github.com/amazon-science/azcausal/releases/tag/v0.2.5","title":"amazon-science/azcausal v0.2.5","context":"amazon-science/azcausal","kind":{"key":"release","label":"Release"},"org":{"slug":"amazon","name":"Amazon (Nova)","category":"frontier-lab"},"occurred_at":"2026-04-30T18:25:05+00:00","first_seen_at":"2026-06-06T01:49:32.065372+00:00","date_source":"source"}]}