GPT-4 vs Phi 4 Reasoning Plus
Phi 4 Reasoning Plus leads the LLM Stats Score 15.0 to 3.0.
OpenAI · Microsoft · Updated for 2026
Which is better?
Phi 4 Reasoning Plus leads the overall LLM Stats Score 15.0 to 3.0, ranking #237 overall.
In the 1 individual benchmarks reported for both models, Phi 4 Reasoning Plus wins 1; 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 GPT-4
- you want predictable pricing at $30.00/M input and $60.00/M output
Choose Phi 4 Reasoning Plus
- overall performance matters — it scores 15.0 and ranks #237 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- 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
12 reported for GPT-4 · 11 for Phi 4 Reasoning Plus
GPT-4 outperforms in 0 benchmarks, while Phi 4 Reasoning Plus is better at 1 benchmark (GPQA).
Phi 4 Reasoning Plus significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only GPT-4 specifies input context (32,768 tokens). Only GPT-4 specifies output context (32,768 tokens).
Input capabilities
Documented input modalities across available providers
GPT-4 supports multimodal inputs, whereas Phi 4 Reasoning Plus does not.
GPT-4 can handle both text and other forms of data like images, making it suitable for multimodal applications.
GPT-4
Phi 4 Reasoning Plus
License
Usage and distribution terms
GPT-4 is licensed under a proprietary license, while Phi 4 Reasoning Plus 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
GPT-4 was released on 2023-06-13, while Phi 4 Reasoning Plus was released on 2025-04-30.
Phi 4 Reasoning Plus is 23 months newer than GPT-4.
Jun 13, 2023
3.3 years ago
Apr 30, 2025
1.4 years ago
1.9yr newerKnowledge Cutoff
When training data ends
GPT-4 has a knowledge cutoff of 2022-12-31, while Phi 4 Reasoning Plus has a cutoff of 2025-03-01.
Phi 4 Reasoning Plus has more recent training data (up to 2025-03-01), making it potentially better informed about events through that date compared to GPT-4 (2022-12-31).
Dec 2022
Mar 2025
2.3 yr newerOutputs Comparison
Judge for yourself.
Run your own prompts against GPT-4 and Phi 4 Reasoning Plus side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4 vs Phi 4 Reasoning Plus.