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Gemini 4 Argon vs Muse Spark Open

Gemini 4 Argon leads the LLM Stats Score 55.0 to 44.9. Muse Spark Open is 2.0x cheaper per token.

Google · Meta · Updated for 2026

Which is better?

Gemini 4 Argon leads the overall LLM Stats Score 55.0 to 44.9, ranking #4 overall.

In the 1 individual benchmarks reported for both models, Gemini 4 Argon wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Muse Spark Open is roughly 2.0x 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 Gemini 4 Argon

  • overall performance matters — it scores 55.0 and ranks #4 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

Choose Muse Spark Open

  • cost matters — it's about 2.0x cheaper per token
  • you want the most recent training data — it shipped Oct 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 4 Argon
Google
Muse Spark Open
Meta
Core performance indexes
LLM Stats Score
55.0
#4
44.9
#43
Reasoning
53.0
#6
45.2
#39
Coding
42.4
#7
33.0
#42
Agents
41.1
#4
30.6
#43
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$2.00 / M
$1.25 / M
Output price
$10.00 / M
$4.25 / M
Context window
1,048,576
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 4 Argon
Muse Spark Open
Vision
37.1#8
31.2#34
Tool use
31.8#4
23.3#44
Multimodal
37.2#7
33.1#20
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

19 reported for Gemini 4 Argon · 17 for Muse Spark Open

1 shared

Gemini 4 Argon outperforms in 1 benchmarks (DeepSWE 1.1), while Muse Spark Open is better at 0 benchmarks.

Gemini 4 Argon 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

Muse Spark Open costs less

For input processing, Gemini 4 Argon ($2.00/1M tokens) is 1.6x more expensive than Muse Spark Open ($1.25/1M tokens).

For output processing, Gemini 4 Argon ($10.00/1M tokens) is 2.4x more expensive than Muse Spark Open ($4.25/1M tokens).

In conclusion, Gemini 4 Argon is more expensive than Muse Spark Open.*

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

Lowest available price from all providers
Mon Oct 19 2026 • llm-stats.com
Google
Gemini 4 Argon
Input tokens$2.00
Output tokens$10.00
Best providerGoogle
Meta
Muse Spark Open
Input tokens$1.25
Output tokens$4.25
Best providerTogether
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. Both models can generate responses up to 1,048,576 tokens.

Google
Gemini 4 Argon
Input1,048,576 tokens
Output1,048,576 tokens
Meta
Muse Spark Open
Input1,048,576 tokens
Output1,048,576 tokens
Mon Oct 19 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Argon and Muse Spark Open support multimodal inputs.

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

Gemini 4 Argon

Text
Images
Audio
Video

Muse Spark Open

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 4 Argon is licensed under a proprietary license, while Muse Spark Open uses Muse Model License.

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

Gemini 4 Argon

Proprietary

Closed source

Muse Spark Open

Muse Model License

Open weights

Release Timeline

When each model was launched

Gemini 4 Argon was released on 2026-09-30, while Muse Spark Open was released on 2026-10-15.

Muse Spark Open is 1 month newer than Gemini 4 Argon.

Gemini 4 Argon

Sep 30, 2026

2 weeks ago

Muse Spark Open

Oct 15, 2026

2 days ago

2w 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

Gemini 4 Argon is available from Google. Muse Spark Open is available from Together.

Gemini 4 Argon

google logo
Google
Input Price:Input: $2.00/1MOutput Price:Output: $10.00/1M

Muse Spark Open

together logo
Together
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 Gemini 4 Argon and Muse Spark Open side-by-side, then vote on the output you prefer.

Gemini 4 Argon
✓ Preferred
Muse Spark Open
Open in Playground

FAQ

Common questions about Gemini 4 Argon vs Muse Spark Open.

Which is better, Gemini 4 Argon or Muse Spark Open?

Gemini 4 Argon leads the LLM Stats Score 55.0 to 44.9. Gemini 4 Argon is made by Google and Muse Spark Open is made by Meta. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 4 Argon compare to Muse Spark Open in benchmarks?

Gemini 4 Argon scores Graphwalks BFS <128k: 99.7%, Vibe Code Bench: 91.9%, LVBench: 91.7%, LABBench2: 88.8%, Graphwalks BFS >128k: 84.2%. Muse Spark Open scores MCP Atlas: 89.2%, GPQA: 89.0%, OSWorld-Verified: 80.4%, BabyVision: 80.2%, Terminal-Bench 2.1: 76.4%.

Is Gemini 4 Argon cheaper than Muse Spark Open?

Muse Spark Open is 1.6x cheaper for input tokens. Gemini 4 Argon costs $2.00/M input and $10.00/M output via google. Muse Spark Open costs $1.25/M input and $4.25/M output via together.

What are the context window sizes for Gemini 4 Argon and Muse Spark Open?

Gemini 4 Argon supports 1.0M tokens and Muse Spark Open 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 Gemini 4 Argon and Muse Spark Open?

Key differences include LLM Stats Score (55.0 vs 44.9), input pricing ($2.00 vs $1.25/M), licensing (Proprietary vs Muse Model License). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Argon and Muse Spark Open?

Gemini 4 Argon is developed by Google and Muse Spark Open is developed by Meta.

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