NVIDIA AI Releases Nemotron 3 Ultra: An Open 550B Mixture-of-Experts Hybrid Mamba-Transformer for Long-Running Agents

NVIDIA has released Nemotron 3 Ultra, the largest model in its Nemotron 3 family. It targets a specific problem: long-running agents that plan, call tools, and reason across many turns. As agents run longer, token counts grow and inference cost climbs. Nemotron 3 Ultra is designed to keep accuracy high while making that inference faster…

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Building a Semantic Search Engine and Open-Status Classifier over the ResearchMath-14k Dataset

from sentence_transformers import util def search(query, k=5): q = model.encode([query], normalize_embeddings=True) sims = util.cos_sim(q, emb)[0].cpu().numpy() idx = sims.argsort()[::-1][:k] print(f’\n=== Query: “{query}” ===’) for rank, i in enumerate(idx, 1): row = work.iloc[i] print(f”\n[{rank}] sim={sims[i]:.3f} | {row[‘taxonomy_level_1’]} ” f”| status={row[‘open_status’]}”) print(” “, row[TEXT_COL][:260].replace(“\n”, ” “), “…”) search(“rational points on hyperelliptic curves”) search(“multiplicativity of maximal output p-norm of…

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Defense tech, AI, and fundraising take center stage at StrictlyVC Los Angeles

With just two weeks to go, StrictlyVC Los Angeles is quickly approaching. On Thursday, June 18, at The Aerospace Corporation Campus in El Segundo, investors, founders, and tech leaders will gather for an evening of conversation exploring some of the most consequential shifts taking place across venture capital, defense technology, artificial intelligence, and advanced industry. Secure your spot here….

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Forward of its IPO, Anthropic’s Daniela Amodei shrugs off doubts about AI’s returns

Forward of its IPO, Anthropic’s Daniela Amodei shrugs off doubts about AI’s returns

Non-public traders have been falling over themselves to get a chunk of Anthropic, given the AI mannequin maker is rising at a dizzying tempo. A number of traders informed TechCrunch that the corporate’s $65 billion fundraise at a $965 billion valuation, introduced final week, was tremendously oversubscribed. Now, with that personal demand nonetheless sturdy, Anthropic…

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