Model Comparison

Grok-4.1 Thinking vs Muse Spark 1.1Which is better in 2026?

Comparing Grok-4.1 Thinking and Muse Spark 1.1 across benchmarks, pricing, and capabilities.

Verdict: Grok-4.1 Thinking vs Muse Spark 1.1 — which is better?

Grok-4.1 Thinking (by xAI) and Muse Spark 1.1 (by Meta) 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.

On price, Muse Spark 1.1 is roughly 3.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Spark 1.1 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Grok-4.1 Thinking if…

  • you want predictable pricing at $3.00/M input and $15.00/M output

Choose Muse Spark 1.1 if…

  • cost matters — it's about 3.0x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Jul 2026

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Grok-4.1 Thinking and Muse Spark 1.1don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Muse Spark 1.1 costs less

For input processing, Grok-4.1 Thinking ($3.00/1M tokens) is 2.4x more expensive than Muse Spark 1.1 ($1.25/1M tokens).

For output processing, Grok-4.1 Thinking ($15.00/1M tokens) is 3.5x more expensive than Muse Spark 1.1 ($4.25/1M tokens).

In conclusion, Grok-4.1 Thinking is more expensive than Muse Spark 1.1.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sun Jul 26 2026 • llm-stats.com
xAI
Grok-4.1 Thinking
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Meta
Muse Spark 1.1
Input tokens$1.25
Output tokens$4.25
Best providerMeta
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Muse Spark 1.1 accepts 1,048,576 input tokens compared to Grok-4.1 Thinking's 256,000 tokens. Muse Spark 1.1 can generate longer responses up to 131,072 tokens, while Grok-4.1 Thinking is limited to 8,000 tokens.

xAI
Grok-4.1 Thinking
Input256,000 tokens
Output8,000 tokens
Meta
Muse Spark 1.1
Input1,048,576 tokens
Output131,072 tokens
Sun Jul 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Grok-4.1 Thinking and Muse Spark 1.1 support multimodal inputs.

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

Grok-4.1 Thinking

Text
Images
Audio
Video

Muse Spark 1.1

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.

Grok-4.1 Thinking

Proprietary

Closed source

Muse Spark 1.1

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-4.1 Thinking was released on 2025-11-17, while Muse Spark 1.1 was released on 2026-07-09.

Muse Spark 1.1 is 8 months newer than Grok-4.1 Thinking.

Grok-4.1 Thinking

Nov 17, 2025

8 months ago

Muse Spark 1.1

Jul 9, 2026

2 weeks ago

7mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

Grok-4.1 Thinking is available from xAI. Muse Spark 1.1 is available from Meta Model API.

Grok-4.1 Thinking

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

Muse Spark 1.1

meta logo
Meta
Input Price:Input: $1.25/1MOutput Price:Output: $4.25/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

xAI

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

Meta
Larger context window (1,048,576 tokens)
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok-4.1 Thinking and Muse Spark 1.1 side-by-side, then vote on the output you prefer.

Grok-4.1 Thinking
✓ Preferred
Muse Spark 1.1
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok-4.1 Thinking
Meta
Muse Spark 1.1

FAQ

Common questions about Grok-4.1 Thinking vs Muse Spark 1.1.

Which is better, Grok-4.1 Thinking or Muse Spark 1.1?

Grok-4.1 Thinking (xAI) and Muse Spark 1.1 (Meta) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Grok-4.1 Thinking compare to Muse Spark 1.1 in benchmarks?

Grok-4.1 Thinking scores Creative Writing v3: 86.1%, WMDP: 84.0%, EQ-Bench: 79.3%, ProtocolQA: 79.0%, LMArena Text Leaderboard: 74.2%. 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%.

Is Grok-4.1 Thinking cheaper than Muse Spark 1.1?

Muse Spark 1.1 is 2.4x cheaper for input tokens. Grok-4.1 Thinking costs $3.00/M input and $15.00/M output via xai. Muse Spark 1.1 costs $1.25/M input and $4.25/M output via meta.

What are the context window sizes for Grok-4.1 Thinking and Muse Spark 1.1?

Grok-4.1 Thinking supports 256K tokens and Muse Spark 1.1 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-4.1 Thinking and Muse Spark 1.1?

Key differences include context window (256K vs 1.0M), input pricing ($3.00 vs $1.25/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-4.1 Thinking and Muse Spark 1.1?

Grok-4.1 Thinking is developed by xAI and Muse Spark 1.1 is developed by Meta.

Related comparisons