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Muse Spark Open vs Qwen3.5-397B-A17B

Muse Spark Open leads the LLM Stats Score 44.9 to 38.5. Qwen3.5-397B-A17B is 1.8x cheaper per token.

Meta · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Muse Spark Open leads the overall LLM Stats Score 44.9 to 38.5, ranking #43 overall.

In the 1 individual benchmarks reported for both models, Muse Spark Open wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Qwen3.5-397B-A17B is roughly 1.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Muse Spark Open 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 Open

  • overall performance matters — it scores 44.9 and ranks #43 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Oct 2026

Choose Qwen3.5-397B-A17B

  • cost matters — it's about 1.8x cheaper per token

At a glance

The differences that matter most.

Core performance indexes
44.9
#43
38.5
#80
45.2
#39
38.4
#79
33.0
#42
23.0
#94
30.6
#43
20.0
#82
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$1.25 / M
$0.45 / M
Output price
$4.25 / M
$3.00 / M
Context window
1,048,576
262,144

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Muse Spark Open
Qwen3.5-397B-A17B
31.6#69
36.6#39
31.2#34
18.1#96
23.3#44
16.7#93
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

17 reported for Muse Spark Open · 38 for Qwen3.5-397B-A17B

1 shared

Muse Spark Open outperforms in 1 benchmarks (GPQA), while Qwen3.5-397B-A17B is better at 0 benchmarks.

Muse Spark Open significantly outperforms across most benchmarks.

Mon Oct 19 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Qwen3.5-397B-A17B costs less

For input processing, Muse Spark Open ($1.25/1M tokens) is 2.8x more expensive than Qwen3.5-397B-A17B ($0.45/1M tokens).

For output processing, Muse Spark Open ($4.25/1M tokens) is 1.4x more expensive than Qwen3.5-397B-A17B ($3.00/1M tokens).

In conclusion, Muse Spark Open is more expensive than Qwen3.5-397B-A17B.*

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

Lowest available price from all providers
Mon Oct 19 2026 • llm-stats.com
Meta
Muse Spark Open
Input tokens$1.25
Output tokens$4.25
Best providerTogether
Alibaba Cloud / Qwen Team
Qwen3.5-397B-A17B
Input tokens$0.45
Output tokens$3.00
Best providerDeepinfra
Notice missing or incorrect data?

Model Size

Parameter count comparison

419.0B diff

Muse Spark Open has 419.0B more parameters than Qwen3.5-397B-A17B, making it 105.5% larger.

Meta
Muse Spark Open
816.0Bparameters
Alibaba Cloud / Qwen Team
Qwen3.5-397B-A17B
397.0Bparameters
816.0B
Muse Spark Open
397.0B
Qwen3.5-397B-A17B

Context Window

Maximum input and output token capacity

Muse Spark Open accepts 1,048,576 input tokens compared to Qwen3.5-397B-A17B's 262,144 tokens. Muse Spark Open can generate longer responses up to 1,048,576 tokens, while Qwen3.5-397B-A17B is limited to 262,144 tokens.

Meta
Muse Spark Open
Input1,048,576 tokens
Output1,048,576 tokens
Alibaba Cloud / Qwen Team
Qwen3.5-397B-A17B
Input262,144 tokens
Output262,144 tokens
Mon Oct 19 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Muse Spark Open and Qwen3.5-397B-A17B support multimodal inputs.

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

Muse Spark Open

Text
Images
Audio
Video

Qwen3.5-397B-A17B

Text
Images
Audio
Video

License

Usage and distribution terms

Muse Spark Open is licensed under Muse Model License, while Qwen3.5-397B-A17B uses Apache 2.0.

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

Muse Spark Open

Muse Model License

Open weights

Qwen3.5-397B-A17B

Apache 2.0

Open weights

Release Timeline

When each model was launched

Muse Spark Open was released on 2026-10-15, while Qwen3.5-397B-A17B was released on 2026-02-16.

Muse Spark Open is 8 months newer than Qwen3.5-397B-A17B.

Muse Spark Open

Oct 15, 2026

4 days ago

8mo newer
Qwen3.5-397B-A17B

Feb 16, 2026

8 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 Spark Open is available from Together. Qwen3.5-397B-A17B is available from DeepInfra, Novita.

Muse Spark Open

together logo
Together
Input Price:Input: $1.25/1MOutput Price:Output: $4.25/1M

Qwen3.5-397B-A17B

deepinfra logo
Deepinfra
Input Price:Input: $0.45/1MOutput Price:Output: $3.00/1M
novita logo
Novita
Input Price:Input: $0.60/1MOutput Price:Output: $3.60/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Muse Spark Open and Qwen3.5-397B-A17B side-by-side, then vote on the output you prefer.

Muse Spark Open
✓ Preferred
Qwen3.5-397B-A17B
Open in Playground

FAQ

Common questions about Muse Spark Open vs Qwen3.5-397B-A17B.

Which is better, Muse Spark Open or Qwen3.5-397B-A17B?

Muse Spark Open leads the LLM Stats Score 44.9 to 38.5. Muse Spark Open is made by Meta and Qwen3.5-397B-A17B is made by Alibaba Cloud / Qwen Team. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Muse Spark Open compare to Qwen3.5-397B-A17B in benchmarks?

Muse Spark Open scores MCP Atlas: 89.2%, GPQA: 89.0%, OSWorld-Verified: 80.4%, BabyVision: 80.2%, Terminal-Bench 2.1: 76.4%. Qwen3.5-397B-A17B scores MMLU-Redux: 94.9%, HMMT 2025: 94.8%, C-Eval: 93.0%, HMMT25: 92.7%, IFEval: 92.6%.

Is Muse Spark Open cheaper than Qwen3.5-397B-A17B?

Qwen3.5-397B-A17B is 2.8x cheaper for input tokens. Muse Spark Open costs $1.25/M input and $4.25/M output via together. Qwen3.5-397B-A17B costs $0.45/M input and $3.00/M output via deepinfra.

What are the context window sizes for Muse Spark Open and Qwen3.5-397B-A17B?

Muse Spark Open supports 1.0M tokens and Qwen3.5-397B-A17B supports 262K 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 Open and Qwen3.5-397B-A17B?

Key differences include LLM Stats Score (44.9 vs 38.5), context window (1.0M vs 262K), input pricing ($1.25 vs $0.45/M), licensing (Muse Model License vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Muse Spark Open and Qwen3.5-397B-A17B?

Muse Spark Open is developed by Meta and Qwen3.5-397B-A17B is developed by Alibaba Cloud / Qwen Team.