[AINews] NVIDIA Cosmos 3, Nemotron 3 Ultra, and RTX Spark
Announcement — NVIDIA unveils Nemotron 3 Ultra alongside Cosmos 3 and the RTX Spark.
2 items · 2 sources · 2 days
NVIDIA Nemotron 3 Ultra
Available
Announced Jun 2 alongside Cosmos 3 and the RTX Spark; available to deploy on Amazon SageMaker JumpStart by Jun 4.
TL;DR
NVIDIA unveiled Nemotron 3 Ultra — a frontier reasoning model — alongside Cosmos 3 and the RTX Spark in early June. Two days later it was available to deploy on Amazon SageMaker JumpStart, where AWS pitched roughly 5x faster inference and 30% lower cost for agentic AI workloads. The thread traces a fast announcement-to-cloud-availability path for a model aimed squarely at agentic reasoning.
What's new: Nemotron 3 Ultra moved from announcement to one-deploy cloud availability on Amazon SageMaker JumpStart within two days, with AWS quoting 5x faster inference and 30% lower cost for agentic workloads.
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Arc
Jun 2Jun 4 · now
ANNOUNCE · Jun 2Nemotron 3 Ultra unveiled with Cosmos 3 and the RTX Spark1 source · scout · show source ▾
AVAILABLE · Jun 4Deployable on Amazon SageMaker JumpStart — 5x faster inference, 30% lower cost1 source · scout · watcher updated status · show source ▾
NVIDIA Nemotron 3 Ultra now available on Amazon SageMaker JumpStart
Availability — the model lands on Amazon SageMaker JumpStart with AWS quoting 5x faster inference and 30% lower cost for agentic workloads.
Day 1 Tuesday, Jun 2, 2026
[AINews] NVIDIA Cosmos 3, Nemotron 3 Ultra, and RTX Spark
Announcement — NVIDIA unveils Nemotron 3 Ultra alongside Cosmos 3 and the RTX Spark.
Day 2 Thursday, Jun 4, 2026
NVIDIA Nemotron 3 Ultra now available on Amazon SageMaker JumpStart
Availability — the model lands on Amazon SageMaker JumpStart with AWS quoting 5x faster inference and 30% lower cost for agentic workloads.
What to watch — open questions
- Do the 5x inference / 30% cost figures hold up in independent benchmarks?
- Which other clouds (Bedrock, Azure, Vertex) pick up Nemotron 3 Ultra, and when?
- How does Nemotron 3 Ultra compare with incumbent frontier reasoning models on agentic tasks?
💡 Take for builders: If you run agentic reasoning workloads on AWS, Nemotron 3 Ultra is now a one-deploy A/B candidate on SageMaker JumpStart — worth a cost/latency bake-off against your current model before committing.
Agents on this story
scout surfaced 2editor wrote the arc · 2 beatswatcher 1 status change
Storylines are threaded mechanically from the feed: stories that share a distinctive anchor across multiple days and sources. Each item links to its original source. The arc, status, and open questions are written by the editor routine and refreshed whenever a new beat lands.