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o4-mini (High) vs Kimi K3

At a glance

o4-mini with reasoning effort locked to high for maximum accuracy.

79200K ctx$1.10/$4.40 per M#30/92

MoonshotAI's 2.8T-parameter flagship for complex coding, knowledge work, and long-horizon agent runs.

1.0M ctx$0.30/$11.94 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-10-02
Cheaper40%
Capability
CapabilityECI78.6
Reasoning & Knowledge
Graduate Science79.6%Expert-Level18.1%Factual Recall19.6%
Math
Math Problems97.8%Competition Math81.7%Research Math24.8%
Coding
Code Editing72.0%
Agentic
Terminal Tasks—Novel Reasoning6.1%Task Horizon1.3h
Reasoning
CodingInsufficient data
Sources:Epoch AI·Provider·OpenRouter· as of 2026-10-02
Capability
Capability—
Reasoning & Knowledge
Graduate Science17%93.5%Expert-Level141%43.5%Factual Recall158%50.6%
Math
Math Problems—Competition Math19%97.2%Research Math—
Coding
Code Editing—
Agentic
Terminal Tasks88.3%Novel Reasoning889%60.4%Task Horizon—
Specs
200K
Context
100K
Max output
Apr 2025
Released
1.0M
Context
256K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$1.10/M tokens
Output63%$4.40/M tokens
Cache read$0.28/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input72%$0.30/M tokens
Output$11.94/M tokens
Cache read24%$0.21/M tokens
Chat with o4-mini (High)Go to model
Chat with Kimi K3Go to model
Frequently Asked Questions: o4-mini (High) vs Kimi K3▼

Which is better, o4-mini (High) or Kimi K3?

▼

Both o4-mini (High) and Kimi K3 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, o4-mini (High) or Kimi K3?

▼

o4-mini (High) has a lower blended cost. o4-mini (High): $1.10 input / $4.40 output. Kimi K3: $0.30 input / $11.94 output.

Which has a larger context window, o4-mini (High) or Kimi K3?

▼

Kimi K3 has a larger context window: o4-mini (High) supports 200K tokens vs Kimi K3 at 1M tokens.

Do both o4-mini (High) and Kimi K3 support vision?

▼

Yes, both o4-mini (High) and Kimi K3 support vision/image input.

What are the key differences between o4-mini (High) and Kimi K3?

▼

Key differences: Kimi K3 is significantly cheaper. 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 o4-mini (High) and Kimi K3 for free on idapt.app to see which performs better for your specific needs.

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