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Grok-4.1 Thinking vs Muse Spark 1.3

Muse Spark 1.3 leads the LLM Stats Score 54.3 to 16.0. Muse Spark 1.3 is 3.0x cheaper per token.

xAI · Meta · Updated for 2026

Which is better?

Muse Spark 1.3 leads the overall LLM Stats Score 54.3 to 16.0, ranking #6 overall.

On price, Muse Spark 1.3 is roughly 3.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Spark 1.3 also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Grok-4.1 Thinking

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

Choose Muse Spark 1.3

  • overall performance matters — it scores 54.3 and ranks #6 on LLM Stats
  • 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 Sep 2026

At a glance

The differences that matter most.

Grok-4.1 Thinking
xAI
Muse Spark 1.3
Meta
Core performance indexes
LLM Stats Score
16.0
#225
54.3
#6
Cost, coverage & limits
Benchmark wins
—
—
Input price
$3.00 / M
$1.25 / M
Output price
$15.00 / M
$4.25 / M
Context window
256,000
1,048,576

Individual benchmarks

11 reported for Grok-4.1 Thinking · 11 for Muse Spark 1.3

No common benchmarks found

Grok-4.1 Thinking and Muse Spark 1.3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Muse Spark 1.3 costs less

For input processing, Grok-4.1 Thinking ($3.00/1M tokens) is 2.4x more expensive than Muse Spark 1.3 ($1.25/1M tokens).

For output processing, Grok-4.1 Thinking ($15.00/1M tokens) is 3.5x more expensive than Muse Spark 1.3 ($4.25/1M tokens).

In conclusion, Grok-4.1 Thinking is more expensive than Muse Spark 1.3.*

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

Lowest available price from all providers
Mon Sep 21 2026 • llm-stats.com
xAI
Grok-4.1 Thinking
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Meta
Muse Spark 1.3
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 1.3 accepts 1,048,576 input tokens compared to Grok-4.1 Thinking's 256,000 tokens. Muse Spark 1.3 can generate longer responses up to 943,718 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 1.3
Input1,048,576 tokens
Output943,718 tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Grok-4.1 Thinking and Muse Spark 1.3 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 1.3

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 1.3

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-4.1 Thinking was released on 2025-11-17, while Muse Spark 1.3 was released on 2026-09-02.

Muse Spark 1.3 is 10 months newer than Grok-4.1 Thinking.

Grok-4.1 Thinking

Nov 17, 2025

10 months ago

Muse Spark 1.3

Sep 2, 2026

2 weeks ago

9mo 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 1.3 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 1.3

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→

Judge for yourself.

Run your own prompts against Grok-4.1 Thinking and Muse Spark 1.3 side-by-side, then vote on the output you prefer.

Grok-4.1 Thinking
✓ Preferred
Muse Spark 1.3
Open in Playground

FAQ

Common questions about Grok-4.1 Thinking vs Muse Spark 1.3.

Which is better, Grok-4.1 Thinking or Muse Spark 1.3?

Muse Spark 1.3 leads the LLM Stats Score 54.3 to 16.0. Grok-4.1 Thinking is made by xAI and Muse Spark 1.3 is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Grok-4.1 Thinking compare to Muse Spark 1.3 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 1.3 scores MRCR v2 (8-needle): 98.5%, MRCR v2 (8-needle, 512K-1M): 98.1%, DeepSearchQA: 89.4%, Terminal-Bench 2.1: 88.8%, DeepSWE 1.1: 75.4%.

Is Grok-4.1 Thinking cheaper than Muse Spark 1.3?

Muse Spark 1.3 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 1.3 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 1.3?

Grok-4.1 Thinking supports 256K tokens and Muse Spark 1.3 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 1.3?

Key differences include LLM Stats Score (16.0 vs 54.3), 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 1.3?

Grok-4.1 Thinking is developed by xAI and Muse Spark 1.3 is developed by Meta.

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