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Kimi K2 Thinking vs Nemotron 3 Ultra

Nemotron 3 Ultra is cheaper on output tokens. Choose Kimi K2 Thinking or Nemotron 3 Ultra based on the trade-off between cost, context, and the benchmarks that matter for your use case.

SpecKimi K2 ThinkingNemotron 3 Ultra
ProviderMoonshotAINVIDIA
Input / 1M tokens$0.60$0.60
Output / 1M tokens$2.50$2.40
Context window262K262K
Parameters1T550B
Open weightsYesYes
ReleasedNov 2025Jun 2026
LiveBench score62.350.7
Aider Polyglot score59.1—
LMArena (Chatbot Arena) Elo score—1445
GPQA Diamond score—85.3
Epoch Capabilities Index score—146

FAQ

Is Kimi K2 Thinking or Nemotron 3 Ultra cheaper?

Nemotron 3 Ultra is cheaper on output tokens ($2.40 vs $2.50 per 1M).

Which has the larger context window, Kimi K2 Thinking or Nemotron 3 Ultra?

Both models offer a similar context window.

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.