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Gemini 3.8 Flash vs Muse Spark 1.1

Gemini 3.8 Flash and Muse Spark 1.1 are closely matched at 51.2 and 49.7 on the LLM Stats Score. Gemini 3.8 Flash is 1.3x cheaper per token.

Google · Meta · Updated for 2026

Which is better?

Gemini 3.8 Flash and Muse Spark 1.1 are closely matched on the overall LLM Stats Score at 51.2 and 49.7.

In the 3 individual benchmarks reported for both models, Gemini 3.8 Flash wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, Gemini 3.8 Flash is roughly 1.3x 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 3.8 Flash

  • you value its reported benchmark strengths — it wins 2 of 3 exact shared results
  • cost matters — it's about 1.3x cheaper per token
  • you want the most recent training data — it shipped Sep 2026

Choose Muse Spark 1.1

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

At a glance

The differences that matter most.

Gemini 3.8 Flash
Google
Muse Spark 1.1
Meta
Core performance indexes
LLM Stats Score
51.2
#12
49.7
#17
Reasoning
47.5
#23
50.1
#13
Coding
39.3
#14
34.9
#31
Agents
36.1
#16
34.8
#20
Cost, coverage & limits
Benchmark wins
2 of 3
1 of 3
Input price
$0.75 / M
$1.25 / M
Output price
$3.75 / 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 3.8 Flash
Muse Spark 1.1
Vision
34.1#14
35.4#11
Tool use
26.9#25
31.7#9
Multimodal
35.3#11
34.2#13
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

13 reported for Gemini 3.8 Flash · 11 for Muse Spark 1.1

3 shared

Gemini 3.8 Flash outperforms in 2 benchmarks (DeepSWE 1.1, Terminal-Bench 2.1), while Muse Spark 1.1 is better at 1 benchmark (CharXiv-R).

Gemini 3.8 Flash shows notably better performance in the majority of benchmarks.

Tue Sep 08 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 3.8 Flash costs less

For input processing, Gemini 3.8 Flash ($0.75/1M tokens) is 1.7x cheaper than Muse Spark 1.1 ($1.25/1M tokens).

For output processing, Gemini 3.8 Flash ($3.75/1M tokens) is 1.1x cheaper than Muse Spark 1.1 ($4.25/1M tokens).

In conclusion, Muse Spark 1.1 is more expensive than Gemini 3.8 Flash.*

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

Lowest available price from all providers
Tue Sep 08 2026 • llm-stats.com
Google
Gemini 3.8 Flash
Input tokens$0.75
Output tokens$3.75
Best providerGoogle
Meta
Muse Spark 1.1
Input tokens$1.25
Output tokens$4.25
Best providerMeta
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,048,576 tokens. Muse Spark 1.1 can generate longer responses up to 131,072 tokens, while Gemini 3.8 Flash is limited to 65,536 tokens.

Google
Gemini 3.8 Flash
Input1,048,576 tokens
Output65,536 tokens
Meta
Muse Spark 1.1
Input1,048,576 tokens
Output131,072 tokens
Tue Sep 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3.8 Flash and Muse Spark 1.1 support multimodal inputs.

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

Gemini 3.8 Flash

Text
Images
Audio
Video

Muse Spark 1.1

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.

Gemini 3.8 Flash

Proprietary

Closed source

Muse Spark 1.1

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.8 Flash was released on 2026-09-02, while Muse Spark 1.1 was released on 2026-07-09.

Gemini 3.8 Flash is 2 months newer than Muse Spark 1.1.

Gemini 3.8 Flash

Sep 2, 2026

6 days ago

1mo newer
Muse Spark 1.1

Jul 9, 2026

2 months ago

Knowledge Cutoff

When training data ends

Gemini 3.8 Flash has a documented knowledge cutoff of 2026-03-31, while Muse Spark 1.1's cutoff date is not specified.

We can confirm Gemini 3.8 Flash's training data extends to 2026-03-31, but cannot make a direct comparison without Muse Spark 1.1's cutoff date.

Gemini 3.8 Flash

Mar 2026

Muse Spark 1.1

—

Provider Availability

Gemini 3.8 Flash is available from Google. Muse Spark 1.1 is available from Meta Model API.

Gemini 3.8 Flash

google logo
Google
Input Price:Input: $0.75/1MOutput Price:Output: $3.75/1M

Muse Spark 1.1

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?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Gemini 3.8 Flash and Muse Spark 1.1 side-by-side, then vote on the output you prefer.

Gemini 3.8 Flash
✓ Preferred
Muse Spark 1.1
Open in Playground

FAQ

Common questions about Gemini 3.8 Flash vs Muse Spark 1.1.

Which is better, Gemini 3.8 Flash or Muse Spark 1.1?

Gemini 3.8 Flash and Muse Spark 1.1 are closely matched on the LLM Stats Score at 51.2 and 49.7. Gemini 3.8 Flash is made by Google and Muse Spark 1.1 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 3.8 Flash compare to Muse Spark 1.1 in benchmarks?

Gemini 3.8 Flash scores Terminal-Bench 2.1: 89.4%, LVBench: 87.1%, CharXiv-R: 86.2%, LABBench2: 86.2%, DeepSWE 1.1: 73.7%. Muse Spark 1.1 scores CharXiv-R: 88.4%, MCP Atlas: 88.1%, OSWorld-Verified: 80.8%, Terminal-Bench 2.1: 80.0%, BabyVision: 76.3%.

Is Gemini 3.8 Flash cheaper than Muse Spark 1.1?

Gemini 3.8 Flash is 1.7x cheaper for input tokens. Gemini 3.8 Flash costs $0.75/M input and $3.75/M output via google. Muse Spark 1.1 costs $1.25/M input and $4.25/M output via meta.

What are the context window sizes for Gemini 3.8 Flash and Muse Spark 1.1?

Gemini 3.8 Flash supports 1.0M tokens and Muse Spark 1.1 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 3.8 Flash and Muse Spark 1.1?

Key differences include LLM Stats Score (51.2 vs 49.7), input pricing ($0.75 vs $1.25/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.8 Flash and Muse Spark 1.1?

Gemini 3.8 Flash is developed by Google and Muse Spark 1.1 is developed by Meta.

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