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Muse Ember vs Muse Spark 1.3

Muse Ember and Muse Spark 1.3 are closely matched at 45.9 and 51.6 on the LLM Stats Score. Muse Ember is 10.0x cheaper per token.

Meta · Meta · Updated for 2026

Which is better?

Muse Ember and Muse Spark 1.3 are closely matched on the overall LLM Stats Score at 45.9 and 51.6.

On price, Muse Ember is roughly 10.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

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

Choose Muse Ember

  • cost matters — it's about 10.0x cheaper per token
  • you want the most recent training data — it shipped Nov 2026

Choose Muse Spark 1.3

  • you want predictable pricing at $1.25/M input and $4.25/M output

At a glance

The differences that matter most.

Muse Ember
Meta
Muse Spark 1.3
Meta
Core performance indexes
LLM Stats Score
45.9
#47
51.6
#18
Reasoning
48.1
#24
49.9
#16
Coding
27.3
#86
37.5
#24
Agents
31.6
#45
36.6
#22
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.10 / M
$1.25 / M
Output price
$0.50 / M
$4.25 / M
Context window
1,048,576
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Muse Ember
Muse Spark 1.3
Tool use
30.7#14
30.0#18
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

6 reported for Muse Ember · 11 for Muse Spark 1.3

No common benchmarks found

Muse Ember 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 Ember costs less

For input processing, Muse Ember ($0.10/1M tokens) is 12.5x cheaper than Muse Spark 1.3 ($1.25/1M tokens).

For output processing, Muse Ember ($0.50/1M tokens) is 8.5x cheaper than Muse Spark 1.3 ($4.25/1M tokens).

In conclusion, Muse Spark 1.3 is more expensive than Muse Ember.*

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

Lowest available price from all providers
Thu Nov 12 2026 • llm-stats.com
Meta
Muse Ember
Input tokens$0.10
Output tokens$0.50
Best providerMeta
Meta
Muse Spark 1.3
Input tokens$1.25
Output tokens$4.25
Best providerMeta
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,048,576 tokens. Muse Spark 1.3 can generate longer responses up to 943,718 tokens, while Muse Ember is limited to 524,288 tokens.

Meta
Muse Ember
Input1,048,576 tokens
Output524,288 tokens
Meta
Muse Spark 1.3
Input1,048,576 tokens
Output943,718 tokens
Thu Nov 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Muse Ember and Muse Spark 1.3 support multimodal inputs.

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

Muse Ember

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.

Muse Ember

Proprietary

Closed source

Muse Spark 1.3

Proprietary

Closed source

Release Timeline

When each model was launched

Muse Ember was released on 2026-11-09, while Muse Spark 1.3 was released on 2026-09-02.

Muse Ember is 2 months newer than Muse Spark 1.3.

Muse Ember

Nov 9, 2026

3 days ago

2mo newer
Muse Spark 1.3

Sep 2, 2026

2 months ago

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

Muse Ember is available from Meta Model API. Muse Spark 1.3 is available from Meta Model API.

Muse Ember

meta logo
Meta
Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

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?

Judge for yourself.

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

Muse Ember
✓ Preferred
Muse Spark 1.3
Open in Playground

FAQ

Common questions about Muse Ember vs Muse Spark 1.3.

Which is better, Muse Ember or Muse Spark 1.3?

Muse Ember and Muse Spark 1.3 are closely matched on the LLM Stats Score at 45.9 and 51.6. Muse Ember is made by Meta 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 Muse Ember compare to Muse Spark 1.3 in benchmarks?

Muse Ember scores PerceptionBench: 80.6%, OSWorld 2.1 (partial): 69.5%, Agents' Last Exam: 61.6%, Personal Superintelligence Index: 46.8%, Terminal-Bench 4.0: 40.9%. 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 Muse Ember cheaper than Muse Spark 1.3?

Muse Ember is 12.5x cheaper for input tokens. Muse Ember costs $0.10/M input and $0.50/M output via meta. Muse Spark 1.3 costs $1.25/M input and $4.25/M output via meta.

What are the context window sizes for Muse Ember and Muse Spark 1.3?

Muse Ember supports 1.0M 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 Muse Ember and Muse Spark 1.3?

Key differences include LLM Stats Score (45.9 vs 51.6), input pricing ($0.10 vs $1.25/M). See the full comparison above for benchmark-by-benchmark results.

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