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Granite 3.3 8B Base vs Muse Spark 1.3

Muse Spark 1.3 leads the LLM Stats Score 55.4 to -0.3.

IBM · Meta · Updated for 2026

Which is better?

Muse Spark 1.3 leads the overall LLM Stats Score 55.4 to -0.3, ranking #5 overall.

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

Choose Granite 3.3 8B Base

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

Choose Muse Spark 1.3

  • overall performance matters — it scores 55.4 and ranks #5 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Granite 3.3 8B Base
IBM
Muse Spark 1.3
Meta
Core performance indexes
LLM Stats Score
-0.3
#315
55.4
#5
Reasoning
-0.4
#310
53.0
#6
Coding
11.2
#151
41.6
#9
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$0.10 / M
Output price
— / M
$0.20 / M
Context window
—
1,048,576

Individual benchmarks

20 reported for Granite 3.3 8B Base · 11 for Muse Spark 1.3

No common benchmarks found

Granite 3.3 8B Base 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

Context Window

Maximum input and output token capacity

Only Muse Spark 1.3 specifies input context (1,048,576 tokens). Only Muse Spark 1.3 specifies output context (943,718 tokens).

IBM
Granite 3.3 8B Base
Input- tokens
Output- tokens
Meta
Muse Spark 1.3
Input1,048,576 tokens
Output943,718 tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Granite 3.3 8B Base and Muse Spark 1.3 support multimodal inputs.

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

Granite 3.3 8B Base

Text
Images
Audio
Video

Muse Spark 1.3

Text
Images
Audio
Video

License

Usage and distribution terms

Granite 3.3 8B Base is licensed under Apache 2.0, while Muse Spark 1.3 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Granite 3.3 8B Base

Apache 2.0

Open weights

Muse Spark 1.3

Proprietary

Closed source

Release Timeline

When each model was launched

Granite 3.3 8B Base was released on 2025-04-16, while Muse Spark 1.3 was released on 2026-09-02.

Muse Spark 1.3 is 17 months newer than Granite 3.3 8B Base.

Granite 3.3 8B Base

Apr 16, 2025

1.4 years ago

Muse Spark 1.3

Sep 2, 2026

0 days ago

1.4yr newer

Knowledge Cutoff

When training data ends

Granite 3.3 8B Base has a documented knowledge cutoff of 2024-04-01, while Muse Spark 1.3's cutoff date is not specified.

We can confirm Granite 3.3 8B Base's training data extends to 2024-04-01, but cannot make a direct comparison without Muse Spark 1.3's cutoff date.

Granite 3.3 8B Base

Apr 2024

Muse Spark 1.3

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Granite 3.3 8B Base and Muse Spark 1.3 side-by-side, then vote on the output you prefer.

Granite 3.3 8B Base
✓ Preferred
Muse Spark 1.3
Open in Playground

FAQ

Common questions about Granite 3.3 8B Base vs Muse Spark 1.3.

Which is better, Granite 3.3 8B Base or Muse Spark 1.3?

Muse Spark 1.3 leads the LLM Stats Score 55.4 to -0.3. Granite 3.3 8B Base is made by IBM 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 Granite 3.3 8B Base compare to Muse Spark 1.3 in benchmarks?

Granite 3.3 8B Base scores HumanEval: 89.7%, AttaQ: 88.5%, HumanEval+: 86.1%, AIME 2024: 81.2%, HellaSwag: 80.1%. 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%.

What are the context window sizes for Granite 3.3 8B Base and Muse Spark 1.3?

Granite 3.3 8B Base supports an unknown number of 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 Granite 3.3 8B Base and Muse Spark 1.3?

Key differences include LLM Stats Score (-0.3 vs 55.4), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Granite 3.3 8B Base and Muse Spark 1.3?

Granite 3.3 8B Base is developed by IBM and Muse Spark 1.3 is developed by Meta.

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