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Nemotron 3 Ultra 550B A55B

Same open weights, served by 2 providers. Weights: nvidia/nemotron-3-ultra-550b-a55b.

nvidiaOpen weights1M contextReleased 2026-06-04nvidia/nemotron-3-ultra-550b-a55b

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Same weights don't always mean identical outputs: quantization, context limits and serving stacks can change quality, especially for tool calling. Prices are USD per 1M tokens; hyperscaler prices are for the reference region shown.