Kimi-k1.5 vs Phi 4 Reasoning
Kimi-k1.5 and Phi 4 Reasoning are closely matched at 17.2 and 12.0 on the LLM Stats Score.
Moonshot AI · Microsoft · Updated for 2026
Which is better?
Kimi-k1.5 and Phi 4 Reasoning are closely matched on the overall LLM Stats Score at 17.2 and 12.0.
In the 2 individual benchmarks reported for both models, Kimi-k1.5 wins 2; 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-k1.5
- you value its reported benchmark strengths — it wins 2 of 2 exact shared results
Choose Phi 4 Reasoning
- you want the most recent training data — it shipped Apr 2025
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for Kimi-k1.5 · 11 for Phi 4 Reasoning
Kimi-k1.5 outperforms in 2 benchmarks (AIME 2024, IFEval), while Phi 4 Reasoning is better at 0 benchmarks.
Kimi-k1.5 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Input capabilities
Documented input modalities across available providers
Kimi-k1.5 supports multimodal inputs, whereas Phi 4 Reasoning does not.
Kimi-k1.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Kimi-k1.5
Phi 4 Reasoning
License
Usage and distribution terms
Kimi-k1.5 is licensed under a proprietary license, while Phi 4 Reasoning uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
Kimi-k1.5 was released on 2025-01-20, while Phi 4 Reasoning was released on 2025-04-30.
Phi 4 Reasoning is 3 months newer than Kimi-k1.5.
Jan 20, 2025
1.7 years ago
Apr 30, 2025
1.4 years ago
3mo newerKnowledge Cutoff
When training data ends
Phi 4 Reasoning has a documented knowledge cutoff of 2025-03-01, while Kimi-k1.5'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-k1.5's cutoff date.
—
Mar 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Kimi-k1.5 and Phi 4 Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Kimi-k1.5 vs Phi 4 Reasoning.