Model Comparison

Muse Spark 1.1 vs o1-proWhich is better in 2026?

Comparing Muse Spark 1.1 and o1-pro across benchmarks, pricing, and capabilities.

Verdict: Muse Spark 1.1 vs o1-pro — which is better?

Muse Spark 1.1 (by Meta) and o1-pro (by OpenAI) 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 o1-pro if…

  • you are already invested in the OpenAI ecosystem

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Muse Spark 1.1 and o1-prodon'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
OpenAI
o1-pro
Input- tokens
Output- tokens
Sun Jul 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Muse Spark 1.1 and o1-pro support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Muse Spark 1.1

Text
Images
Audio
Video

o1-pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Muse Spark 1.1

Proprietary

Closed source

o1-pro

Proprietary

Closed source

Release Timeline

When each model was launched

Muse Spark 1.1 was released on 2026-07-09, while o1-pro was released on 2024-12-17.

Muse Spark 1.1 is 19 months newer than o1-pro.

Muse Spark 1.1

Jul 9, 2026

1 weeks ago

1.6yr newer
o1-pro

Dec 17, 2024

1.6 years ago

Knowledge Cutoff

When training data ends

o1-pro has a documented knowledge cutoff of 2023-09-30, while Muse Spark 1.1's cutoff date is not specified.

We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without Muse Spark 1.1's cutoff date.

Muse Spark 1.1

—

o1-pro

Sep 2023

Outputs Comparison

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Key Takeaways

Meta
Larger context window (1,048,576 tokens)
OpenAI

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Muse Spark 1.1 and o1-pro side-by-side, then vote on the output you prefer.

Muse Spark 1.1
✓ Preferred
o1-pro
Open in Playground
AI Model Comparison Table
Feature
Meta
Muse Spark 1.1
OpenAI
o1-pro

FAQ

Common questions about Muse Spark 1.1 vs o1-pro.

Which is better, Muse Spark 1.1 or o1-pro?

Muse Spark 1.1 (Meta) and o1-pro (OpenAI) 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 o1-pro 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%. o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%.

What are the context window sizes for Muse Spark 1.1 and o1-pro?

Muse Spark 1.1 supports 1.0M tokens and o1-pro supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes Muse Spark 1.1 and o1-pro?

Muse Spark 1.1 is developed by Meta and o1-pro is developed by OpenAI.

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