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Nemotron 3 Ultra vs GPT-5.5 on atomic[.]chat, a desktop app that runs LLMs locally.

Rohan Paul Twitter · Rohan Paul (@rohanpaul_ai) · 2026-06-05

Rohan Paul benchmarks Nemotron 3 Ultra against GPT-5.5 on a local LLM desktop app, finding Nemotron delivers near-identical output quality on an HTML5 canvas physics-coding task at roughly one-tenth the cost ($0.051 vs $0.57).

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Extraction

Topics: llm-benchmarksmodel-comparisonnemotroncost-efficiencylocal-llm

Claims

  • Nemotron 3 Ultra produced nearly identical results to GPT-5.5 on a task requiring HTML5 canvas with real physics simulation.
  • Nemotron 3 Ultra cost $0.051 versus GPT-5.5's $0.57 for the same task, a roughly 10x price difference.
  • Both models consumed similar token counts (~11k), indicating the cost gap reflects pricing rather than efficiency differences in generation length.

Key quotes

Nemotron 3 Ultra gave almost similar result on a test to build HTML5 canvas with real physics, while being 10X cheaper.
Nemotron 3 Ultra: 11.3k tokens, $0.051 — GPT 5.5: 11.0k tokens, $0.57