Skip to main content
idapt
HomeCodeAI ModelsPricing
Sign inStart free
  • Home
  • Pricing
  • AI Models
  • Image models
  • Voice models
  • Video models
  • Rankings
  • New models
  • Model status
  • Multi-Model Chat
  • Voice Mode
  • Voice HUD
  • Web Search
  • Image Generation
  • Video Generation
  • Audio Generation
  • Transcription
  • Drive
  • Credentials
  • Sharing
  • Workspaces
  • Tasks
  • Memory
  • Agents
  • Subagents
  • Automations
  • Skills
  • idapt Code
  • Code Execution
  • Computers
  • Computer Use
  • Computer Assist · Soon
  • Containers · Soon
  • Cloud Computers
  • Local AI
  • AI Gateway
  • API & SDK
  • CLI
  • MCP
  • Tunnels
  • All features →
  • LLM cost calculator
  • Token counter
  • Context window checker
  • Can I run it
  • Model picker quiz
  • Savings finder
  • Video cost estimator
  • Text to speech cost
  • Transcription cost
  • API endpoint tester
  • All free tools →
  • Blog
  • Use cases
  • Comparisons
  • Best of
  • Skills
  • Learn
  • Changelog
  • Help center
  • FAQ
  • Privacy
  • Compare all models
  • Support
  • idapt Code
  • Developers
  • Quickstarts
  • API reference
  • API pricing
  • CLI
  • MCP
  • Downloads
  • Desktop
  • Badges and embeds
© idapt[email protected]TermsPrivacy PolicyLegal noticeReport content
X (Twitter)

Kimi K2 (0905) vs Nemotron 3 Ultra

At a glance

September 2025 checkpoint of Kimi K2 with improved capabilities.

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
All agent demos

No shared agent demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
No benchmarks available

This model hasn't been benchmarked yet.

No benchmarks available

This model hasn't been benchmarked yet.

Specs
262K
Context
100K
Max output
Sep 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
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 (0905)Go to model
Chat with Nemotron 3 UltraGo to model
Frequently Asked Questions: Kimi K2 (0905) vs Nemotron 3 Ultra▼

Which is better, Kimi K2 (0905) or Nemotron 3 Ultra?

▼

Both Kimi K2 (0905) 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 (0905) or Nemotron 3 Ultra?

▼

Kimi K2 (0905) has a lower blended cost. Kimi K2 (0905): $0.60 input / $2.50 output. Nemotron 3 Ultra: $0.60 input / $3.60 output.

Which has a larger context window, Kimi K2 (0905) or Nemotron 3 Ultra?

▼

Nemotron 3 Ultra has a larger context window: Kimi K2 (0905) supports 262K tokens vs Nemotron 3 Ultra at 512K tokens.

What are the key differences between Kimi K2 (0905) and Nemotron 3 Ultra?

▼

Key differences: only Nemotron 3 Ultra offers extended reasoning mode. Compare full specs on this page.

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 (0905) and Nemotron 3 Ultra for free on idapt.app to see which performs better for your specific needs.

Open in App