{"schema_version":"onlylabs.public_signal.v1","title":"Cerebras Model: cerebras/Llama-3-CBHybridM-8B","description":"Cerebras model signal with public source context, captured evidence pages, related signals, and category-scoped analysis context.","url":"https://onlylabs.fyi/signals/3e6f1832-4f36-4942-add1-617b62616434","json_url":"https://onlylabs.fyi/signals/3e6f1832-4f36-4942-add1-617b62616434/signal.json","generated_at":"2026-06-11T02:50:45.419219+00:00","org":{"slug":"cerebras","name":"Cerebras","category":"neocloud","category_label":"Neocloud","dossier_url":"https://onlylabs.fyi/labs/cerebras","dossier_json_url":"https://onlylabs.fyi/labs/cerebras/dossier.json"},"related_urls":{"signal":"https://onlylabs.fyi/signals/3e6f1832-4f36-4942-add1-617b62616434","signal_json":"https://onlylabs.fyi/signals/3e6f1832-4f36-4942-add1-617b62616434/signal.json","source":"https://huggingface.co/cerebras/Llama-3-CBHybridM-8B","lab_dossier":"https://onlylabs.fyi/labs/cerebras","lab_dossier_json":"https://onlylabs.fyi/labs/cerebras/dossier.json","analysis":"https://onlylabs.fyi/analysis/cerebras","analysis_json":"https://onlylabs.fyi/analysis/cerebras/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/cerebras/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/releases","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json?category=neocloud","topic_feed":"https://onlylabs.fyi/topics/releases/feed.xml?category=neocloud","data_business":null},"answer_pack":{"answer":"Cerebras published cerebras/Llama-3-CBHybridM-8B. This model signal is evidence of what shipped on model infrastructure and how the release is positioned. High-signal details: license other · 6 HF downloads · Low traction, small model. onlylabs links this event to 1 captured evidence page and 6 related model signals.","signal_desk":"releases","source_context":{"source_url":"https://huggingface.co/cerebras/Llama-3-CBHybridM-8B","source_host":"huggingface.co","occurred_at":"2025-03-04T18:41:17+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source","context":null},"context_markers":[{"label":"Lab","value":"Cerebras","source":"signal"},{"label":"Signal desk","value":"releases","source":"signal"},{"label":"Source host","value":"huggingface.co","source":"source"},{"label":"Task","value":"text-generation","source":"model"},{"label":"License","value":"other","source":"model"},{"label":"Params","value":"8B","source":"model"},{"label":"Downloads","value":"6","source":"traction"},{"label":"Likes","value":"0","source":"traction"},{"label":"Notability","value":"Low traction, small model","source":"signal"},{"label":"Watch term","value":"Model card","source":"model"},{"label":"Watch term","value":"Data pipeline","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://huggingface.co/cerebras/Llama-3-CBHybridM-8B/raw/main/README.md"],"related_signals":6,"has_source_url":true,"latest_page_fetched_at":"2026-06-11T02:50:45.419219+00:00"},"data_business":{"matches":false,"lanes":[],"matched_terms":[],"score":null,"reason":null},"agent_handoff":{"signal_json":"https://onlylabs.fyi/signals/3e6f1832-4f36-4942-add1-617b62616434/signal.json","dossier_json":"https://onlylabs.fyi/labs/cerebras/dossier.json","analysis_json":"https://onlylabs.fyi/analysis/cerebras/analysis.json","analysis_evidence_json":"https://onlylabs.fyi/analysis/cerebras/evidence.json","topic_signals_json":"https://onlylabs.fyi/topics/releases/signals.json?category=neocloud","topic_feed":"https://onlylabs.fyi/topics/releases/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 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 shipped in this model artifact, and what evidence describes its capability, license, or traction?","What actually shipped, and through which public artifact?","Which releases include inspectable model, repo, paper, or package evidence?","Do the 6 related model signals show a repeated pattern?"],"output_fields":["org","release_type","artifact","traction","evidence_url"],"data_business_relevance":"Data-business lane extraction is scoped to frontier labs; 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This series includes two models: Llama3.1-CBHybridL-8B (model with 25 sparse attention layers out of 32) and Llama3.1-CBHybridM-8B (28 sparse attention layers out of 32). This model – Cerebras Llama3.1-CBHybridM-8B – was built on top of Llama-3.1-8B-Instruct using sparse attention training features available in Cerebras Model Zoo Release 2.4. We created hybrid versions of Llama-3.1-8B-Instruct with most of the self-attention layers fine-tuned to perform sparse lambda-mask attention which reduces KV cache memory usage by 1.6-1.7x while largely maintaining long-context performance. You can find more information about Cerebras hybrid Llama models at the following locations: * [Blog post](https://www.cerebras.ai/blog/compressing-kv-cache-memory-by-half-with-sparse-attention) * [Llama-3-CBHybridL-8B model on HuggingFace](https://huggingface.co/cerebras/Llama-3-CBHybridL-8B) *..."},"evidence_pages":[{"url":"https://huggingface.co/cerebras/Llama-3-CBHybridM-8B/raw/main/README.md","final_url":"https://huggingface.co/cerebras/Llama-3-CBHybridM-8B/raw/main/README.md","title":"cerebras/Llama-3-CBHybridM-8B model card","http_status":200,"content_type":"text/plain; charset=utf-8","capture_method":"plain","fetched_at":"2026-06-11T02:50:45.419219+00:00","bytes":7308,"raw_path":"9b0a72f1d9fdccc8780eff735138ab14b17b2b21c740e3ecc58d542a3eef1180.md","content_hash":"fd64ab5ae989fd5fa093fe808f45f4fd3d2af242e0ac3763edc8a00c39d8fd3a","excerpt_chars":1200,"truncated":true,"excerpt":"--- license: other language: - en pipeline_tag: text-generation tags: - cerebras - sparse-attention - llama-3 - pytorch --- Llama-3-CBHybridM-8B: Model Information We are excited to release the Cerebras hybrid dense/sparse attention versions of Llama-3.1-8B-Instruct models optimized for long-context performance. This series includes two models: Llama3.1-CBHybridL-8B (model with 25 sparse attention layers out of 32) and Llama3.1-CBHybridM-8B (28 sparse attention layers out of 32). This model – Cerebras Llama3.1-CBHybridM-8B – was built on top of Llama-3.1-8B-Instruct using sparse attention training features available in Cerebras Model Zoo Release 2.4. We created hybrid versions of Llama-3.1-8B-Instruct with most of the self-attention layers fine-tuned to perform sparse lambda-mask attention which reduces KV cache memory usage by 1.6-1.7x while largely maintaining long-context performance. You can find more information about Cerebras hybrid Llama models at the following locations: * [Blog post](https://www.cerebras.ai/blog/compressing-kv-cache-memory-by-half-with-sparse-attention) * [Llama-3-CBHybridL-8B model on HuggingFace](https://huggingface.co/cerebras/Llama-3-CBHybridL-8B) *..."}],"related_signals":[{"id":"c043795d-d639-4f88-95c4-49025226c41b","url":"https://onlylabs.fyi/signals/c043795d-d639-4f88-95c4-49025226c41b","source_url":"https://huggingface.co/cerebras/Step-3.5-Flash-REAP-121B-A11B","title":"cerebras/Step-3.5-Flash-REAP-121B-A11B","context":null,"kind":{"key":"model_released","label":"Model"},"org":{"slug":"cerebras","name":"Cerebras","category":"neocloud"},"occurred_at":"2026-02-25T07:11:20+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source"},{"id":"8e156f68-4602-4639-a2fe-608bfd8b83af","url":"https://onlylabs.fyi/signals/8e156f68-4602-4639-a2fe-608bfd8b83af","source_url":"https://huggingface.co/cerebras/Step-3.5-Flash-REAP-149B-A11B","title":"cerebras/Step-3.5-Flash-REAP-149B-A11B","context":null,"kind":{"key":"model_released","label":"Model"},"org":{"slug":"cerebras","name":"Cerebras","category":"neocloud"},"occurred_at":"2026-02-25T07:05:37+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source"},{"id":"4853c7eb-6324-4e2c-9738-37b91aac9725","url":"https://onlylabs.fyi/signals/4853c7eb-6324-4e2c-9738-37b91aac9725","source_url":"https://huggingface.co/cerebras/GLM-4.7-Flash-REAP-23B-A3B","title":"cerebras/GLM-4.7-Flash-REAP-23B-A3B","context":null,"kind":{"key":"model_released","label":"Model"},"org":{"slug":"cerebras","name":"Cerebras","category":"neocloud"},"occurred_at":"2026-01-23T05:26:34+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source"},{"id":"1fa7b9fc-581e-4b68-ba55-7d2a6fe8a66e","url":"https://onlylabs.fyi/signals/1fa7b9fc-581e-4b68-ba55-7d2a6fe8a66e","source_url":"https://huggingface.co/cerebras/GLM-4.7-REAP-218B-A32B","title":"cerebras/GLM-4.7-REAP-218B-A32B","context":null,"kind":{"key":"model_released","label":"Model"},"org":{"slug":"cerebras","name":"Cerebras","category":"neocloud"},"occurred_at":"2026-01-10T20:39:01+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source"},{"id":"4b7077fd-5f99-4436-8f33-64f484682473","url":"https://onlylabs.fyi/signals/4b7077fd-5f99-4436-8f33-64f484682473","source_url":"https://huggingface.co/cerebras/GLM-4.7-REAP-268B-A32B","title":"cerebras/GLM-4.7-REAP-268B-A32B","context":null,"kind":{"key":"model_released","label":"Model"},"org":{"slug":"cerebras","name":"Cerebras","category":"neocloud"},"occurred_at":"2026-01-10T20:34:42+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source"},{"id":"65aa0627-3cbf-453f-98f2-186a94b643f0","url":"https://onlylabs.fyi/signals/65aa0627-3cbf-453f-98f2-186a94b643f0","source_url":"https://huggingface.co/cerebras/DeepSeek-V3.2-REAP-345B-A37B","title":"cerebras/DeepSeek-V3.2-REAP-345B-A37B","context":null,"kind":{"key":"model_released","label":"Model"},"org":{"slug":"cerebras","name":"Cerebras","category":"neocloud"},"occurred_at":"2025-12-09T13:48:42+00:00","first_seen_at":"2026-06-06T01:49:47.331765+00:00","date_source":"source"}]}