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Phi 4 vs Kimi K3

At a glance

Microsoft's compact research model with strong STEM reasoning.

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

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
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper97%
Capability
CapabilityECI64.6
Reasoning & Knowledge
Graduate Science56.1%Expert-Level—Factual Recall—
Math
Math Problems64.9%Competition Math13.8%
Agentic
Terminal Tasks—Novel Reasoning—
Reasoning
CodingInsufficient data
Sources:Epoch AI·Provider·OpenRouter· as of 2026-10-02
Capability
Capability—
Reasoning & Knowledge
Graduate Science67%93.5%Expert-Level43.5%Factual Recall50.6%
Math
Math Problems—Competition Math607%97.2%
Agentic
Terminal Tasks88.3%Novel Reasoning60.4%
Specs
16K
Context
15K
Max output
Jan 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
Input77%$0.07/M tokens
Output99%$0.14/M tokens
Live pricing, shown before you run
Input$0.30/M tokens
Output$11.94/M tokens
Cache read$0.21/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: $0.30 input / $11.94 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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