Kimi K2 Instruct vs Phi 4 Reasoning
Kimi K2 Instruct leads the LLM Stats Score 21.9 to 12.0.
Moonshot AI · Microsoft · Updated for 2026
Which is better?
Kimi K2 Instruct leads the overall LLM Stats Score 21.9 to 12.0, ranking #181 overall.
In the 5 individual benchmarks reported for both models, Kimi K2 Instruct 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 Instruct
- overall performance matters — it scores 21.9 and ranks #181 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 3 of 5 exact shared results
- you want the most recent training data — it shipped Jul 2025
Choose Phi 4 Reasoning
- you are already invested in the Microsoft ecosystem
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
38 reported for Kimi K2 Instruct · 11 for Phi 4 Reasoning
Kimi K2 Instruct outperforms in 3 benchmarks (GPQA, IFEval, MMLU-Pro), while Phi 4 Reasoning is better at 2 benchmarks (AIME 2024, AIME 2025).
Kimi K2 Instruct 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 Instruct has 986.0B more parameters than Phi 4 Reasoning, making it 7042.9% larger.
Context Window
Maximum input and output token capacity
Only Kimi K2 Instruct specifies input context (200,000 tokens). Only Kimi K2 Instruct specifies output context (200,000 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 Instruct was released on 2025-07-11, while Phi 4 Reasoning was released on 2025-04-30.
Kimi K2 Instruct is 2 months newer than Phi 4 Reasoning.
Jul 11, 2025
1.2 years ago
2mo newerApr 30, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
Phi 4 Reasoning has a documented knowledge cutoff of 2025-03-01, while Kimi K2 Instruct's cutoff date is not specified.
We can confirm Phi 4 Reasoning's training data extends to 2025-03-01, but cannot make a direct comparison without Kimi K2 Instruct's cutoff date.
—
Mar 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Kimi K2 Instruct and Phi 4 Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi K2 Instruct vs Phi 4 Reasoning.