{"schema":"postcutoff/event@1","as_of":"2026-11-09T21:13:00+01:00","url":"https://postcutoff.com/e/2026-11-04-ricursive-ripple-65b-preview-open-weights/","md":"https://postcutoff.com/e/2026-11-04-ricursive-ripple-65b-preview-open-weights/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-11-04-ricursive-ripple-65b-preview-open-weights","date":"2026-11-04","date_precision":"day","short_title":"Ricursive (AlphaChip creators) releases Ripple-65B Preview, an Apache-2.0 dense 65B model trained from scratch for $32M","deck":null,"takeaway":"Its own benchmarks claim the US open-weights coding lead; the company admits difficulty reproducing agent benchmarks.","category":"open-source","category_label":"Open source","importance":3,"confidence":"medium","status":{"key":"partly","labels":["Partly confirmed"]},"sources":[{"n":1,"title":"Hugging Face: ricursiveAI/Ripple-65B-Preview","url":"https://huggingface.co/ricursiveAI/Ripple-65B-Preview","type":"code","group":"primary","domain":"huggingface.co"},{"n":2,"title":"VentureBeat: Ripple-65B Preview claims US open coding lead","url":"https://venturebeat.com/technology/ex-googlers-new-apache-2-0-model-ripple-65b-preview-claims-the-u-s-open-coding-lead-on-two-major-benchmarks","type":"press","group":"press","domain":"venturebeat.com"}],"official":1,"filed":"2026-11-05","updated":"2026-11-05","orgs":["Ricursive Intelligence"],"title":"Ricursive (AlphaChip creators) releases Ripple-65B Preview, an Apache-2.0 dense 65B model trained from scratch for $32M","summary":"On Nov 4, 2026 Ricursive Intelligence, the chip-design AI startup of AlphaChip co-creators Anna Goldie and Azalia Mirhoseini, released Ripple-65B Preview under Apache 2.0: a dense 65B model trained from scratch on 12T tokens for about $32M, described as a general-purpose variant of the model behind its chip-design platform. Its own benchmarks claim the US open-weights coding lead; the company admits difficulty reproducing agent benchmarks.","key_facts":["Dense, 80 layers, 12T training tokens; advertised 1M context (OpenRouter caps at 16,384 tokens)","Vendor numbers: Terminal-Bench 2.1 80.5, SWE-bench Pro v2.0 Hard 79.1, DeepSWE 1.1 44.3 (Muse Spark Open 60.0), HMMT Feb 2026 90.5","Model card gives different rival scores from the launch graphic (VentureBeat)","OpenRouter (GMI Cloud): $0.20 input / $0.60 output / $0.05 cached per 1M tokens; weights at huggingface.co/ricursiveAI/Ripple-65B-Preview"],"key_numbers":[],"tags":["open-weights","llm","coding","chip-design","apache-2.0"],"science":null,"body_md":"## What happened\n\nA rare US-made, permissively licensed open model trained from scratch by a startup, at a disclosed cost. Benchmarks are vendor-only so far; it is not on Artificial Analysis's open-weights list yet.","disputed":[],"related":[],"people":[{"id":"anna-goldie","name":"Anna Goldie","url":"https://postcutoff.com/person/anna-goldie/"},{"id":"azalia-mirhoseini","name":"Azalia Mirhoseini","url":"https://postcutoff.com/person/azalia-mirhoseini/"}],"posts":[],"videos":[],"models":[],"changes":[{"date":"2026-11-05","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-11-05","run":null,"sources_read":null,"updated":"2026-11-05","human_review":null,"version":{"date":"2026-11-05"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":188,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":127,"in_training_data":false},{"model_id":"gemini-4-argon","name":"Gemini 4 Argon","cutoff":"2026-03","days_after":218,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":157,"in_training_data":false}],"short_url":null}