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Kimi K2 Thinking vs Nemotron 3 Ultra

At a glance

Kimi K2 with always-on extended reasoning for complex problem solving.

262K ctx$0.60/$2.50 per M

NVIDIA's open frontier reasoning model for orchestration, coding, and deep research.

512K ctx$0.60/$3.60 per M
Agent Demos
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AI Output
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Benchmarks
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Specs
262K
Context
100K
Max output
Nov 2025
Released
512K
Context
16K
Max output
Jun 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.60/M tokens
Output31%$2.50/M tokens
Cache read25%$0.15/M tokens
Live pricing, shown before you run
Input$0.60/M tokens
Output$3.60/M tokens
Cache read$0.20/M tokens
Chat with Kimi K2 ThinkingGo to model
Chat with Nemotron 3 UltraGo to model
Frequently Asked Questions: Kimi K2 Thinking vs Nemotron 3 Ultra▼

Which is better, Kimi K2 Thinking or Nemotron 3 Ultra?

▼

Both Kimi K2 Thinking and Nemotron 3 Ultra are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Kimi K2 Thinking or Nemotron 3 Ultra?

▼

Kimi K2 Thinking has a lower blended cost. Kimi K2 Thinking: $0.60 input / $2.50 output. Nemotron 3 Ultra: $0.60 input / $3.60 output.

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

▼

Nemotron 3 Ultra has a larger context window: Kimi K2 Thinking supports 262K tokens vs Nemotron 3 Ultra at 512K tokens.

What are the key differences between Kimi K2 Thinking and Nemotron 3 Ultra?

▼

Kimi K2 Thinking and Nemotron 3 Ultra have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Kimi K2 Thinking and Nemotron 3 Ultra for free on idapt.app to see which performs better for your specific needs.

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