Claude Opus 4 vs Phi 4 Mini Reasoning
Claude Opus 4 leads the LLM Stats Score 27.7 to 7.2.
Anthropic · Microsoft · Updated for 2026
Which is better?
Claude Opus 4 leads the overall LLM Stats Score 27.7 to 7.2, ranking #142 overall.
In the 1 individual benchmarks reported for both models, Claude Opus 4 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 Opus 4
- overall performance matters — it scores 27.7 and ranks #142 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 May 2025
Choose Phi 4 Mini Reasoning
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
9 reported for Claude Opus 4 · 3 for Phi 4 Mini Reasoning
Claude Opus 4 outperforms in 1 benchmarks (GPQA), while Phi 4 Mini Reasoning is better at 0 benchmarks.
Claude Opus 4 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 Opus 4 specifies input context (200,000 tokens). Only Claude Opus 4 specifies output context (32,000 tokens).
Input capabilities
Documented input modalities across available providers
Claude Opus 4 supports multimodal inputs, whereas Phi 4 Mini Reasoning does not.
Claude Opus 4 can handle both text and other forms of data like images, making it suitable for multimodal applications.
Claude Opus 4
Phi 4 Mini Reasoning
License
Usage and distribution terms
Claude Opus 4 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 Opus 4 was released on 2025-05-22, while Phi 4 Mini Reasoning was released on 2025-04-30.
Claude Opus 4 is 1 month newer than Phi 4 Mini Reasoning.
May 22, 2025
1.3 years ago
3w newerApr 30, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
Phi 4 Mini Reasoning has a documented knowledge cutoff of 2025-02-01, while Claude Opus 4'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 Opus 4's cutoff date.
—
Feb 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Opus 4 and Phi 4 Mini Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Opus 4 vs Phi 4 Mini Reasoning.