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Muse Spark 1.3 vs Phi-3.5-mini-instruct

Muse Spark 1.3 leads the LLM Stats Score 55.4 to -3.7. Phi-3.5-mini-instruct is 1.3x cheaper per token.

Meta · Microsoft · Updated for 2026

Which is better?

Muse Spark 1.3 leads the overall LLM Stats Score 55.4 to -3.7, ranking #5 overall.

On price, Phi-3.5-mini-instruct is roughly 1.3x 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 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 process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Phi-3.5-mini-instruct

  • cost matters — it's about 1.3x cheaper per token
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Muse Spark 1.3
Meta
Phi-3.5-mini-instruct
Microsoft
Core performance indexes
LLM Stats Score
55.4
#5
-3.7
#333
Reasoning
53.0
#6
-4.6
#330
Coding
41.6
#9
-6.8
#252
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.10 / M
$0.10 / M
Output price
$0.20 / M
$0.10 / M
Context window
1,048,576
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Muse Spark 1.3
Phi-3.5-mini-instruct
Long context
31.7#1
8.3#82
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Muse Spark 1.3 · 31 for Phi-3.5-mini-instruct

No common benchmarks found

Muse Spark 1.3 and Phi-3.5-mini-instructdon'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

Phi-3.5-mini-instruct costs less

For input processing, Muse Spark 1.3 ($0.10/1M tokens) costs the same as Phi-3.5-mini-instruct ($0.10/1M tokens).

For output processing, Muse Spark 1.3 ($0.20/1M tokens) is 2.0x more expensive than Phi-3.5-mini-instruct ($0.10/1M tokens).

In conclusion, Muse Spark 1.3 is more expensive than Phi-3.5-mini-instruct.*

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

Lowest available price from all providers
Thu Sep 03 2026 • llm-stats.com
Meta
Muse Spark 1.3
Input tokens$0.10
Output tokens$0.20
Best providerMeta
Microsoft
Phi-3.5-mini-instruct
Input tokens$0.10
Output tokens$0.10
Best providerAzure
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 Phi-3.5-mini-instruct's 128,000 tokens. Muse Spark 1.3 can generate longer responses up to 943,718 tokens, while Phi-3.5-mini-instruct is limited to 128,000 tokens.

Meta
Muse Spark 1.3
Input1,048,576 tokens
Output943,718 tokens
Microsoft
Phi-3.5-mini-instruct
Input128,000 tokens
Output128,000 tokens
Thu Sep 03 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Muse Spark 1.3 supports multimodal inputs, whereas Phi-3.5-mini-instruct does not.

Muse Spark 1.3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Muse Spark 1.3

Text
Images
Audio
Video

Phi-3.5-mini-instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Muse Spark 1.3 is licensed under a proprietary license, while Phi-3.5-mini-instruct uses MIT.

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

Muse Spark 1.3

Proprietary

Closed source

Phi-3.5-mini-instruct

MIT

Open weights

Release Timeline

When each model was launched

Muse Spark 1.3 was released on 2026-09-02, while Phi-3.5-mini-instruct was released on 2024-08-23.

Muse Spark 1.3 is 25 months newer than Phi-3.5-mini-instruct.

Muse Spark 1.3

Sep 2, 2026

0 days ago

2.0yr newer
Phi-3.5-mini-instruct

Aug 23, 2024

2.0 years 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 Spark 1.3 is available from Meta Model API. Phi-3.5-mini-instruct is available from Azure.

Muse Spark 1.3

meta logo
Meta
Input Price:Input: $0.10/1MOutput Price:Output: $0.20/1M

Phi-3.5-mini-instruct

azure logo
Azure
Input Price:Input: $0.10/1MOutput Price:Output: $0.10/1M
* 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 Muse Spark 1.3 and Phi-3.5-mini-instruct side-by-side, then vote on the output you prefer.

Muse Spark 1.3
✓ Preferred
Phi-3.5-mini-instruct
Open in Playground

FAQ

Common questions about Muse Spark 1.3 vs Phi-3.5-mini-instruct.

Which is better, Muse Spark 1.3 or Phi-3.5-mini-instruct?

Muse Spark 1.3 leads the LLM Stats Score 55.4 to -3.7. Muse Spark 1.3 is made by Meta and Phi-3.5-mini-instruct is made by Microsoft. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Muse Spark 1.3 compare to Phi-3.5-mini-instruct in benchmarks?

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%. Phi-3.5-mini-instruct scores GSM8k: 86.2%, ARC-C: 84.6%, RULER: 84.1%, PIQA: 81.0%, OpenBookQA: 79.2%.

Is Muse Spark 1.3 cheaper than Phi-3.5-mini-instruct?

Both models cost $0.10 per million input tokens.

What are the context window sizes for Muse Spark 1.3 and Phi-3.5-mini-instruct?

Muse Spark 1.3 supports 1.0M tokens and Phi-3.5-mini-instruct supports 128K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Muse Spark 1.3 and Phi-3.5-mini-instruct?

Key differences include LLM Stats Score (55.4 vs -3.7), context window (1.0M vs 128K), multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Muse Spark 1.3 and Phi-3.5-mini-instruct?

Muse Spark 1.3 is developed by Meta and Phi-3.5-mini-instruct is developed by Microsoft.

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