Model Comparison

Muse Spark 1.1 vs Phi 4 Reasoning PlusWhich is better in 2026?

Comparing Muse Spark 1.1 and Phi 4 Reasoning Plus across benchmarks, pricing, and capabilities.

Verdict: Muse Spark 1.1 vs Phi 4 Reasoning Plus — which is better?

Muse Spark 1.1 (by Meta) and Phi 4 Reasoning Plus (by Microsoft) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Choose Muse Spark 1.1 if…

  • you want the most recent training data — it shipped Jul 2026

Choose Phi 4 Reasoning Plus if…

  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Muse Spark 1.1 and Phi 4 Reasoning Plusdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Muse Spark 1.1 specifies input context (1,048,576 tokens). Only Muse Spark 1.1 specifies output context (131,072 tokens).

Meta
Muse Spark 1.1
Input1,048,576 tokens
Output131,072 tokens
Microsoft
Phi 4 Reasoning Plus
Input- tokens
Output- tokens
Sat Jul 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Muse Spark 1.1 supports multimodal inputs, whereas Phi 4 Reasoning Plus does not.

Muse Spark 1.1 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Muse Spark 1.1

Text
Images
Audio
Video

Phi 4 Reasoning Plus

Text
Images
Audio
Video

License

Usage and distribution terms

Muse Spark 1.1 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.

Muse Spark 1.1

Proprietary

Closed source

Phi 4 Reasoning Plus

MIT

Open weights

Release Timeline

When each model was launched

Muse Spark 1.1 was released on 2026-07-09, while Phi 4 Reasoning Plus was released on 2025-04-30.

Muse Spark 1.1 is 15 months newer than Phi 4 Reasoning Plus.

Muse Spark 1.1

Jul 9, 2026

1 weeks ago

1.2yr newer
Phi 4 Reasoning Plus

Apr 30, 2025

1.2 years ago

Knowledge Cutoff

When training data ends

Phi 4 Reasoning Plus has a documented knowledge cutoff of 2025-03-01, while Muse Spark 1.1's cutoff date is not specified.

We can confirm Phi 4 Reasoning Plus's training data extends to 2025-03-01, but cannot make a direct comparison without Muse Spark 1.1's cutoff date.

Muse Spark 1.1

—

Phi 4 Reasoning Plus

Mar 2025

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Meta
Larger context window (1,048,576 tokens)
Supports multimodal inputs
Microsoft
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Muse Spark 1.1 and Phi 4 Reasoning Plus side-by-side, then vote on the output you prefer.

Muse Spark 1.1
✓ Preferred
Phi 4 Reasoning Plus
Open in Playground
AI Model Comparison Table
Feature
Meta
Muse Spark 1.1
Microsoft
Phi 4 Reasoning Plus

FAQ

Common questions about Muse Spark 1.1 vs Phi 4 Reasoning Plus.

Which is better, Muse Spark 1.1 or Phi 4 Reasoning Plus?

Muse Spark 1.1 (Meta) and Phi 4 Reasoning Plus (Microsoft) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Muse Spark 1.1 compare to Phi 4 Reasoning Plus in benchmarks?

Muse Spark 1.1 scores CharXiv-R: 88.4%, MCP Atlas: 88.1%, OSWorld-Verified: 80.8%, Terminal-Bench 2.1: 80.0%, BabyVision: 76.3%. Phi 4 Reasoning Plus scores FlenQA: 97.9%, HumanEval+: 92.3%, IFEval: 84.9%, OmniMath: 81.9%, AIME 2024: 81.3%.

What are the context window sizes for Muse Spark 1.1 and Phi 4 Reasoning Plus?

Muse Spark 1.1 supports 1.0M tokens and Phi 4 Reasoning Plus supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Muse Spark 1.1 and Phi 4 Reasoning Plus?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Muse Spark 1.1 and Phi 4 Reasoning Plus?

Muse Spark 1.1 is developed by Meta and Phi 4 Reasoning Plus is developed by Microsoft.

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