Grok-1.5V vs Phi-4-multimodal-instruct
Grok-1.5V and Phi-4-multimodal-instruct are closely matched at -1.2 and 2.3 on the LLM Stats Score.
xAI · Microsoft · Updated for 2026
Which is better?
Grok-1.5V and Phi-4-multimodal-instruct are closely matched on the overall LLM Stats Score at -1.2 and 2.3.
In the 6 individual benchmarks reported for both models, Phi-4-multimodal-instruct wins 4; 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 Grok-1.5V
- you are already invested in the xAI ecosystem
Choose Phi-4-multimodal-instruct
- you value its reported benchmark strengths — it wins 4 of 6 exact shared results
- you want the most recent training data — it shipped Feb 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
7 reported for Grok-1.5V · 15 for Phi-4-multimodal-instruct
Grok-1.5V outperforms in 2 benchmarks (AI2D, TextVQA), while Phi-4-multimodal-instruct is better at 4 benchmarks (ChartQA, DocVQA, MathVista, MMMU).
Phi-4-multimodal-instruct shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Phi-4-multimodal-instruct specifies input context (128,000 tokens). Only Phi-4-multimodal-instruct specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Grok-1.5V and Phi-4-multimodal-instruct support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-1.5V
Phi-4-multimodal-instruct
License
Usage and distribution terms
Grok-1.5V is licensed under a proprietary license, while Phi-4-multimodal-instruct 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-1.5V was released on 2024-04-12, while Phi-4-multimodal-instruct was released on 2025-02-01.
Phi-4-multimodal-instruct is 10 months newer than Grok-1.5V.
Apr 12, 2024
2.5 years ago
Feb 1, 2025
1.7 years ago
9mo newerKnowledge Cutoff
When training data ends
Phi-4-multimodal-instruct has a documented knowledge cutoff of 2024-06-01, while Grok-1.5V's cutoff date is not specified.
We can confirm Phi-4-multimodal-instruct's training data extends to 2024-06-01, but cannot make a direct comparison without Grok-1.5V's cutoff date.
—
Jun 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-1.5V and Phi-4-multimodal-instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-1.5V vs Phi-4-multimodal-instruct.