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Comparison · 2 models · Updated Oct 4, 2026

Gemini 3.5 Flash vs Muse Spark 1.1

Too close to call on our weighted score (Muse Spark 1.1 70, Gemini 3.5 Flash 69). The right pick depends on what you value most.

  1. Google

    Gemini 3.5 Flash

    Released May 19, 2026

    69/100
    • ECI154.5
    • Price$1.50 / $9.00
    • Context1.05M
    Full specs Remove Gemini 3.5 Flash

  2. Meta

    Muse Spark 1.1

    Released Jul 9, 2026

    70/100
    • ECI154.3
    • Price$1.25 / $4.25
    • Context1.05M
    Full specs Remove Muse Spark 1.1

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01 — Verdict

Too close to call

It is close. Our weighted score puts them within 1 points (Muse Spark 1.1 70/100, Gemini 3.5 Flash 69/100), so choose by what matters most for your work: Gemini 3.5 Flash for raw capability and Muse Spark 1.1 on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

  • CapabilityGemini 3.5 FlashCapabilities Index (ECI): Gemini 3.5 Flash 154.5 · Muse Spark 1.1 154.3
  • Lowest priceMuse Spark 1.1Muse Spark 1.1 $2.00 · Gemini 3.5 Flash $3.38 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameGemini 3.5 Flash 1,048,576 · Muse Spark 1.1 1,048,576 tokens
  • Widest inputsGemini 3.5 FlashGemini 3.5 Flash: Text, Images, PDFs, Audio, Video · Muse Spark 1.1: Text, Images, PDFs, Video
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGemini 3.5 FlashMuse Spark 1.1
CapabilityCapabilities Index (ECI)50%8484
Price25%2536
Inputs & features15%10090
Context window10%6161
Overall100%69/10070/100
02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Gemini 3.5 Flash vs Muse Spark 1.1 specifications side by side
SpecificationGemini 3.5 FlashGoogleMuse Spark 1.1Meta
Capability
Capabilities Index (ECI)154.5 (best)154.3
ECI rank#33 of 148 (best)#35 of 148
GPQA DiamondGraduate-level science questions92.8%—
FrontierMath Tiers 1–3Research-level mathematics62.8%—
OTIS Mock AIME 2024–2025Competition mathematics95.6%—
SWE-bench VerifiedFixing real GitHub issues79.3%—
SimpleQA VerifiedShort factual questions66.2% (best)57.8%
Price per million tokens
Input$1.50$1.25 (best)
Output$9.00$4.25 (best)
Cached input$0.15$0.15
Blended (3:1)$3.38$2.00 (best)
Long-context rateSame rateSame rate
Price sourceOfficial Google APIOfficial Meta API
Limits
Context window1,048,576 tokens1,048,576 tokens
Max output65,536 tokens131,072 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsYesYes
AudioYesNo
VideoYesYes
ReasoningYesminimal · low · medium · highYesminimal · low · medium · high · xhigh
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model IDgemini-3.5-flashmuse-spark-1.1
API providers32 (best)13
ReleasedMay 19, 2026Jul 9, 2026
Knowledge cutoffJan 2025—
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Gemini 3.5 Flash$33.00
  • Muse Spark 1.1$21.00
04 — Questions

Which should you choose?

Which is better: Gemini 3.5 Flash or Muse Spark 1.1?

It is close. Our weighted score puts them within 1 points (Muse Spark 1.1 70/100, Gemini 3.5 Flash 69/100), so choose by what matters most for your work: Gemini 3.5 Flash for raw capability and Muse Spark 1.1 on price. The score weighs capability 50%, price 25%, inputs & features 15%, context window 10%.

Which is cheaper, Gemini 3.5 Flash or Muse Spark 1.1?

Muse Spark 1.1 is cheaper at $1.25 input / $4.25 output per million tokens (official Meta API price). Gemini 3.5 Flash costs $1.50 input / $9.00 output per million tokens (official Google API price). At a typical mix of three input tokens to one output token, that is $2.00 per million tokens for Muse Spark 1.1 versus $3.38 for Gemini 3.5 Flash (1.7× as much).

Which scores higher on benchmarks?

Gemini 3.5 Flash scores higher on the Capabilities Index (ECI): Gemini 3.5 Flash 154.5 (#33 of 148) and Muse Spark 1.1 154.3 (#35 of 148). The confidence ranges of the top two overlap (152.5–156.6 vs 152.2–157.1), so treat the gap as small. On individual benchmarks: SimpleQA Verified — Gemini 3.5 Flash 66.2%, Muse Spark 1.1 57.8%.

Which is better for coding?

There are no published SWE-bench Verified results for Muse Spark 1.1 yet, so there is no like-for-like coding score. On overall capability, Gemini 3.5 Flash leads, which tends to carry over to coding, but test on your own codebase. Both support tool calling for agent workflows.

Which has the bigger context window?

Gemini 3.5 Flash and Muse Spark 1.1 share the same 1,048,576-token context window. Maximum output per response: Gemini 3.5 Flash up to 65,536, Muse Spark 1.1 up to 131,072 tokens.

Which can read images, PDFs, audio or video?

Gemini 3.5 Flash accepts text, images, PDFs, audio and video; Muse Spark 1.1 accepts text, images, PDFs and video. Gemini 3.5 Flash handles the widest range of inputs.

Are any of these open source?

No. Gemini 3.5 Flash and Muse Spark 1.1 are proprietary and only available through APIs and apps.

Which is newer?

Muse Spark 1.1 is the newest, released Jul 9, 2026. Gemini 3.5 Flash came out May 19, 2026. Knowledge cutoff: Gemini 3.5 Flash Jan 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.

05 — Keep comparing

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