NVIDIA AI Releases Nemotron 3 Embed: An Open Embedding Collection Whose 8B Checkpoint Ranks #1 on RTEB
#1 on RTEB. NVIDIA's Nemotron-3-Embed-8B just dethroned the field—and it's open-source.

Why it matters
NVIDIA is competing directly in the embedding model space with a top-ranked open release, signaling a strategic push beyond inference hardware into the foundation model stack. The 1B variant via distillation shows NVIDIA is optimizing for efficiency and edge deployment.
The key facts
6 to knowNemotron-3-Embed-8B ranks #1 on RTEB at 78.46 average NDCG@10
Three open checkpoints released: 8B, 1B (BF16), and 1B (NVFP4)
1B model derived from ModelOpt NAS pruning + COS+MSE distillation
NVFP4 format retains 99%+ BF16 accuracy at up to 2x Blackwell throughput
All models support 32,768-token context windows under OpenMDW-1.1
Release date: July 15-16, 2026
Go to the source
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Publisher excerpt: NVIDIA released Nemotron 3 Embed on July 15 and 16, 2026. The collection has three open checkpoints: Nemotron-3-Embed-8B-BF16, Nemotron-3-Embed-1B-BF16, and Nemotron-3-Embed-1B-NVFP4. The 8B ranks #1 on RTEB at 78.46 average NDCG@10. The 1B came from ModelOpt NAS pruning plus COS+MSE distillation…