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Phi 4 vs Kimi K3

At a glance
MicrosoftPhi 4

Microsoft's compact research model with strong STEM reasoning.

6516K ctx$0.07/$0.14 per M#61/92
MoonshotAIKimi K3

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

1.0M ctx$3.00/$15.00 per M
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
MicrosoftPhi 4
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI64.6
Reasoning & Knowledge
Graduate Science56.1%Expert-Level—
Math
Math Problems64.9%Competition Math13.8%
Agentic
Terminal Tasks—
MoonshotAIKimi K3
Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Capability
Capability—
Reasoning & Knowledge
Graduate Science93.5%Expert-Level43.5%
Math
Math Problems—Competition Math—
Agentic
Terminal Tasks88.3%
Specs
MicrosoftPhi 4
16K
Context
16K
Max output
Jan 2025
Released
MoonshotAIKimi K3
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
MicrosoftPhi 4
Vision
Audio
Reasoning
MoonshotAIKimi K3
Vision
Audio
Reasoning
Pricing
MicrosoftPhi 4
Live pricing, shown before you run
Input$0.07/M tokens
Output$0.14/M tokens
MoonshotAIKimi K3
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
Chat with Phi 4Go to model
Chat with Kimi K3Go to model
Frequently Asked Questions: Phi 4 vs Kimi K3▼

Which is better, Phi 4 or Kimi K3?

▼

Both Phi 4 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, Phi 4 or Kimi K3?

▼

Phi 4 has a lower blended cost. Phi 4: $0.07 input / $0.14 output. Kimi K3: $3.00 input / $15.00 output.

Which has a larger context window, Phi 4 or Kimi K3?

▼

Kimi K3 has a larger context window: Phi 4 supports 16K tokens vs Kimi K3 at 1M tokens.

Do both Phi 4 and Kimi K3 support vision?

▼

Kimi K3 supports vision/image input, but Phi 4 does not.

What are the key differences between Phi 4 and Kimi K3?

▼

Key differences: Phi 4 is significantly cheaper; only Kimi K3 supports vision input; only Kimi K3 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 Phi 4 and Kimi K3 for free on idapt.app to see which performs better for your specific needs.

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