Claude 3.5 Sonnet vs Phi 4 Mini Reasoning
Claude 3.5 Sonnet and Phi 4 Mini Reasoning are closely matched at 19.3 and 7.4 on the LLM Stats Score.
Anthropic · Microsoft · Updated for 2026
Which is better?
Claude 3.5 Sonnet and Phi 4 Mini Reasoning are closely matched on the overall LLM Stats Score at 19.3 and 7.4.
In the 1 individual benchmarks reported for both models, Claude 3.5 Sonnet 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 Claude 3.5 Sonnet
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
Choose Phi 4 Mini 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.
Individual benchmarks
19 reported for Claude 3.5 Sonnet · 3 for Phi 4 Mini Reasoning
Claude 3.5 Sonnet outperforms in 1 benchmarks (GPQA), while Phi 4 Mini Reasoning is better at 0 benchmarks.
Claude 3.5 Sonnet 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 Claude 3.5 Sonnet specifies input context (200,000 tokens). Only Claude 3.5 Sonnet specifies output context (200,000 tokens).
Input capabilities
Documented input modalities across available providers
Claude 3.5 Sonnet supports multimodal inputs, whereas Phi 4 Mini Reasoning does not.
Claude 3.5 Sonnet can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude 3.5 Sonnet
Phi 4 Mini Reasoning
License
Usage and distribution terms
Claude 3.5 Sonnet is licensed under a proprietary license, while Phi 4 Mini 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
Claude 3.5 Sonnet was released on 2024-10-22, while Phi 4 Mini Reasoning was released on 2025-04-30.
Phi 4 Mini Reasoning is 6 months newer than Claude 3.5 Sonnet.
Oct 22, 2024
1.9 years ago
Apr 30, 2025
1.3 years ago
6mo newerKnowledge Cutoff
When training data ends
Phi 4 Mini Reasoning has a documented knowledge cutoff of 2025-02-01, while Claude 3.5 Sonnet's cutoff date is not specified.
We can confirm Phi 4 Mini Reasoning's training data extends to 2025-02-01, but cannot make a direct comparison without Claude 3.5 Sonnet's cutoff date.
—
Feb 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude 3.5 Sonnet and Phi 4 Mini Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude 3.5 Sonnet vs Phi 4 Mini Reasoning.