Kimi K2 Base vs Phi 4
Kimi K2 Base leads the LLM Stats Score 13.6 to 5.5.
Moonshot AI · Microsoft · Updated for 2026
Which is better?
Kimi K2 Base leads the overall LLM Stats Score 13.6 to 5.5, ranking #242 overall.
In the 5 individual benchmarks reported for both models, Phi 4 wins 3; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Kimi K2 Base
- overall performance matters — it scores 13.6 and ranks #242 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you want the most recent training data — it shipped Jul 2025
Choose Phi 4
- you value its reported benchmark strengths — it wins 3 of 5 exact shared results
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
13 reported for Kimi K2 Base · 13 for Phi 4
Kimi K2 Base outperforms in 2 benchmarks (MMLU, SimpleQA), while Phi 4 is better at 3 benchmarks (GPQA, MATH, MMLU-Pro).
Phi 4 has a slight edge in benchmark performance.
Human preference
Blind head-to-head votes and playground preference scores
Model Size
Parameter count comparison
Kimi K2 Base has 985.3B more parameters than Phi 4, making it 6702.7% larger.
Context Window
Maximum input and output token capacity
Only Phi 4 specifies input context (16,384 tokens). Only Phi 4 specifies output context (16,384 tokens).
License
Usage and distribution terms
Both models are licensed under MIT.
Both models share the same licensing terms, providing consistent usage rights.
MIT
Open weights
MIT
Open weights
Release Timeline
When each model was launched
Kimi K2 Base was released on 2025-07-11, while Phi 4 was released on 2024-12-12.
Kimi K2 Base is 7 months newer than Phi 4.
Jul 11, 2025
1.2 years ago
7mo newerDec 12, 2024
1.7 years ago
Knowledge Cutoff
When training data ends
Phi 4 has a documented knowledge cutoff of 2024-06-01, while Kimi K2 Base's cutoff date is not specified.
We can confirm Phi 4's training data extends to 2024-06-01, but cannot make a direct comparison without Kimi K2 Base's cutoff date.
—
Jun 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Kimi K2 Base and Phi 4 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K2 Base vs Phi 4.