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Gemini 3.1 Flash-Lite vs Muse Spark Open

Muse Spark Open leads the LLM Stats Score 45.3 to 30.5. Gemini 3.1 Flash-Lite is 3.6x cheaper per token.

Google · Meta · Updated for 2026

Which is better?

Muse Spark Open leads the overall LLM Stats Score 45.3 to 30.5, ranking #42 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, Gemini 3.1 Flash-Lite is roughly 3.6x 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 Gemini 3.1 Flash-Lite

  • cost matters — it's about 3.6x cheaper per token

Choose Muse Spark Open

  • overall performance matters — it scores 45.3 and ranks #42 on LLM Stats
  • your work emphasizes reasoning and agents — 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
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Gemini 3.1 Flash-Lite
Google
Muse Spark Open
Meta
Core performance indexes
LLM Stats Score
30.5
#138
45.3
#42
Reasoning
30.9
#132
45.7
#35
Agents
10.4
#137
30.8
#43
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$0.25 / M
$1.25 / M
Output price
$1.50 / M
$4.25 / M
Context window
1,000,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 3.1 Flash-Lite
Muse Spark Open
Math
22.0#152
33.3#58
Vision
17.6#101
31.3#33
Multimodal
22.5#72
33.1#20
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

11 reported for Gemini 3.1 Flash-Lite · 17 for Muse Spark Open

1 shared

Gemini 3.1 Flash-Lite outperforms in 0 benchmarks, while Muse Spark Open is better at 1 benchmark (GPQA).

Muse Spark Open significantly outperforms across most benchmarks.

Thu Oct 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 3.1 Flash-Lite costs less

For input processing, Gemini 3.1 Flash-Lite ($0.25/1M tokens) is 5.0x cheaper than Muse Spark Open ($1.25/1M tokens).

For output processing, Gemini 3.1 Flash-Lite ($1.50/1M tokens) is 2.8x cheaper than Muse Spark Open ($4.25/1M tokens).

In conclusion, Muse Spark Open is more expensive than Gemini 3.1 Flash-Lite.*

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

Lowest available price from all providers
Thu Oct 22 2026 • llm-stats.com
Google
Gemini 3.1 Flash-Lite
Input tokens$0.25
Output tokens$1.50
Best providerDeepinfra
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

Muse Spark Open accepts 1,048,576 input tokens compared to Gemini 3.1 Flash-Lite's 1,000,000 tokens. Muse Spark Open can generate longer responses up to 1,048,576 tokens, while Gemini 3.1 Flash-Lite is limited to 1,000,000 tokens.

Google
Gemini 3.1 Flash-Lite
Input1,000,000 tokens
Output1,000,000 tokens
Meta
Muse Spark Open
Input1,048,576 tokens
Output1,048,576 tokens
Thu Oct 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3.1 Flash-Lite and Muse Spark Open support multimodal inputs.

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

Gemini 3.1 Flash-Lite

Text
Images
Audio
Video

Muse Spark Open

Text
Images
Audio
Video

License

Usage and distribution terms

Gemini 3.1 Flash-Lite 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 3.1 Flash-Lite

Proprietary

Closed source

Muse Spark Open

Muse Model License

Open weights

Release Timeline

When each model was launched

Gemini 3.1 Flash-Lite was released on 2026-03-03, while Muse Spark Open was released on 2026-10-15.

Muse Spark Open is 8 months newer than Gemini 3.1 Flash-Lite.

Gemini 3.1 Flash-Lite

Mar 3, 2026

7 months ago

Muse Spark Open

Oct 15, 2026

5 days ago

7mo newer

Knowledge Cutoff

When training data ends

Gemini 3.1 Flash-Lite has a documented knowledge cutoff of 2025-01-31, while Muse Spark Open's cutoff date is not specified.

We can confirm Gemini 3.1 Flash-Lite's training data extends to 2025-01-31, but cannot make a direct comparison without Muse Spark Open's cutoff date.

Gemini 3.1 Flash-Lite

Jan 2025

Muse Spark Open

—

Provider Availability

Gemini 3.1 Flash-Lite is available from DeepInfra, Google. Muse Spark Open is available from Together.

Gemini 3.1 Flash-Lite

deepinfra logo
Deepinfra
Input Price:Input: $0.25/1MOutput Price:Output: $1.50/1M
google logo
Google
Input Price:Input: $0.25/1MOutput Price:Output: $1.50/1M

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 3.1 Flash-Lite and Muse Spark Open side-by-side, then vote on the output you prefer.

Gemini 3.1 Flash-Lite
✓ Preferred
Muse Spark Open
Open in Playground

FAQ

Common questions about Gemini 3.1 Flash-Lite vs Muse Spark Open.

Which is better, Gemini 3.1 Flash-Lite or Muse Spark Open?

Muse Spark Open leads the LLM Stats Score 45.3 to 30.5. Gemini 3.1 Flash-Lite 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 3.1 Flash-Lite compare to Muse Spark Open in benchmarks?

Gemini 3.1 Flash-Lite scores MMMLU: 88.9%, GPQA: 86.9%, VideoMMMU: 84.8%, MMMU-Pro: 76.8%, CharXiv-R: 73.2%. 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 3.1 Flash-Lite cheaper than Muse Spark Open?

Gemini 3.1 Flash-Lite is 5.0x cheaper for input tokens. Gemini 3.1 Flash-Lite costs $0.25/M input and $1.50/M output via deepinfra. Muse Spark Open costs $1.25/M input and $4.25/M output via together.

What are the context window sizes for Gemini 3.1 Flash-Lite and Muse Spark Open?

Gemini 3.1 Flash-Lite 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 3.1 Flash-Lite and Muse Spark Open?

Key differences include LLM Stats Score (30.5 vs 45.3), context window (1.0M vs 1.0M), input pricing ($0.25 vs $1.25/M), licensing (Proprietary vs Muse Model License). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Flash-Lite and Muse Spark Open?

Gemini 3.1 Flash-Lite is developed by Google and Muse Spark Open is developed by Meta.

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