Grok-2 vs Phi 4 Reasoning
Grok-2 and Phi 4 Reasoning are closely matched at 11.4 and 12.0 on the LLM Stats Score.
xAI · Microsoft · Updated for 2026
Which is better?
Grok-2 and Phi 4 Reasoning are closely matched on the overall LLM Stats Score at 11.4 and 12.0.
The models split the 2 individual benchmarks reported for both models evenly.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-2
- you want predictable pricing at $2.00/M input and $10.00/M output
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
8 reported for Grok-2 · 11 for Phi 4 Reasoning
Grok-2 outperforms in 1 benchmarks (MMLU-Pro), while Phi 4 Reasoning is better at 1 benchmark (GPQA).
Both models are evenly matched across the benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Grok-2 specifies input context (128,000 tokens). Only Grok-2 specifies output context (8,000 tokens).
Input capabilities
Documented input modalities across available providers
Grok-2 supports multimodal inputs, whereas Phi 4 Reasoning does not.
Grok-2 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-2
Phi 4 Reasoning
License
Usage and distribution terms
Grok-2 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
Grok-2 was released on 2024-08-13, while Phi 4 Reasoning was released on 2025-04-30.
Phi 4 Reasoning is 9 months newer than Grok-2.
Aug 13, 2024
2.1 years ago
Apr 30, 2025
1.4 years ago
8mo newerKnowledge Cutoff
When training data ends
Phi 4 Reasoning has a documented knowledge cutoff of 2025-03-01, while Grok-2'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 Grok-2's cutoff date.
—
Mar 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-2 and Phi 4 Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-2 vs Phi 4 Reasoning.