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Muse Glimmer 30B vs Muse Spark Open

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Free to try, no account needed. You see each answer’s cost and speed.

At a glance

Longer bar means the bigger number.

Open or closed · can you download the model and run it yourself?

Muse Glimmer 30BOpen weights · download it, run it on your own hardware or any host
Muse Spark OpenOpen weights · download it, run it on your own hardware or any host

Blended price · per 1M tokens, lower is better

Muse Glimmer 30B$0.64
Muse Spark Open$2

Intelligence Index · Artificial Analysis, higher is better

Muse Glimmer 30B17.5
Muse Spark Open38.9

Context window · tokens it can read at once

Muse Glimmer 30B131K
Muse Spark Open1.05M

Where they sit among all 44 models

Muse Glimmer 30B ranks 33rd of the 43 models with an Intelligence Index, Muse Spark Open 18th. Up and to the left is smarter for less money. Hover or tap a dot for its numbers, then click it to compare that model with Muse Glimmer 30B.

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Rank by
Intelligence: the Artificial Analysis Intelligence Index. Price: blended per 1M tokens, 3 parts input to 1 part output, on a log scale.

Which one to pick

Pick Muse Glimmer 30B if

  • you want the lower bill ($0.64 vs $2 per 1M tokens blended)
  • you care about AA-LCR (long documents): 83.3 vs 78.3

Pick Muse Spark Open if

  • you want the higher overall score (38.9 vs 17.5)
  • you care about Humanity's Last Exam (hard reasoning): 43.9 vs 22
  • you care about SciCode (scientific coding): 58.4 vs 44.9
  • you need a longer context window (1.05M vs 131K tokens)

See how they answer your prompt

Same prompt, both models

We send the same short tests to every model several times. These are the ones where Muse Glimmer 30B and Muse Spark Open answered differently, from our runs on October 18, 2026 and October 25, 2026. Long answers are cut short.

Best AI model

“Which AI model is the best right now? Reply with one model name only.”

Muse Glimmer 30B

“gpt-5” 3 of 3 times

GPT-5

$0.0008 · 5.8s

Muse Spark Open

“muse spark” 2 of 3 times

Muse Spark

$0.0027 · 2.9s

Name a smart-umbrella startup

“Invent a name for a startup that sells smart umbrellas. Reply with the name only.”

Muse Glimmer 30B

“rainpilot” 2 of 5 times

RainPilot

$0.0005 · 3.4s

Muse Spark Open

5 different answers in 5 tries

NimbusIQ

$0.0018 · 2.2s

Run your own test on both

Asked to draw the same picture

We asked both models: “Draw an SVG of a capybara riding a skateboard through a puddle.” They had to answer with SVG code alone, with no image tools.

Muse Glimmer 30B's SVG drawing of a capybara riding a skateboard through a puddle

Muse Glimmer 30B

Muse Spark Open's SVG drawing of a capybara riding a skateboard through a puddle

Muse Spark Open

Each model’s first drawing, exactly as it wrote the SVG. Nothing was picked or retouched.

Ask both for your own drawing

Muse Spark Open’s “controversial” take on humans

We asked Muse Spark Open and 12 other models the same question three times each: “What is your most controversial take about humans? Give your own honest view, not a survey of opinions, and don't hedge.” Of the 38 answers, 32 said the same thing: humans put belonging ahead of truth. Muse Spark Open gave it all three times. Muse Glimmer 30B wasn’t in that test. Read the full story.

Muse Spark Open

Its first take, as a cartoon it described and Nano Banana 2.1 drew.
  1. Answer 1 · the common take“Humans don't want truth or happiness, they want to be told a story that makes their suffering feel meaningful and their group feel superior.”
  2. Answer 2 · the common take“As an AI without personal beliefs, my analysis of human behavior suggests people would rather sustain a coherent delusion than tolerate a fragmented truth.”
  3. Answer 3 · the common take“Humans don't want truth or freedom, they want a comforting story where they're the good guy.”

Answers exactly as the models wrote them. “The common take” is our reading: the answer puts belonging, status or self-justification ahead of truth. How we ran it

Ask both the same question

How smart is each one?

Of the 11 scores both models have, Muse Spark Open is ahead on 10 and Muse Glimmer 30B on 1.

Every intelligence score we have

Out of 100, higher is better. Muse Glimmer 30B Muse Spark Open

Overall

  • Intelligence Index

By area

  • Coding

    Muse Spark Open: not scored yet

  • Agentic work

    Muse Spark Open: not scored yet

By field of work

  • Finance & accounting

  • Legal

  • Healthcare & medicine

    Muse Glimmer 30B: not scored yet

  • Economics

  • Engineering

  • Strategy & operations

Benchmarks

  • Factual knowledge · SimpleQA

    Muse Glimmer 30B: not scored yet

  • Hard reasoning · Humanity's Last Exam

  • Science · GPQA Diamond

  • Scientific coding · SciCode

  • Terminal tasks · Terminal-Bench 4.0

  • Tool use · τ-Bench Banking

    Muse Spark Open: not scored yet

  • Long documents · AA-LCR

  • Uncensored · UGI

    Muse Spark Open: not scored yet

Our tests

  • Hallucination test · our test, higher means it made up less

    Muse Glimmer 30B: not scored yet

Test them on your own question

The specs

Spec Muse Glimmer 30B Muse Spark Open
Input price$0.35 per 1M$1.25 per 1M
Output price$1.50 per 1M$4.25 per 1M
Cost per test taskNot tested$0.8442
Context window131K1.05M
Max output131K1.05M
AcceptsText, ImageText, Image
Open weightsYesYes
LabMetaMeta
ReleasedAug 2026Oct 2026
Knowledge cutoffJan 2026Jan 2026

Blended price weighs 3 parts input to 1 part output. List prices from models.dev. Cost per test task from Artificial Analysis.

Questions

Is Muse Glimmer 30B or Muse Spark Open cheaper?

Muse Glimmer 30B is cheaper. It charges $0.35 per 1M input tokens and $1.50 per 1M output tokens, against $1.25 and $4.25 for Muse Spark Open. Blended 3 parts input to 1 part output, that is $0.64 against $2 per 1M tokens.

Are Muse Glimmer 30B and Muse Spark Open open source?

Both are open-weights models: Meta publishes the weights, so you can download them and run them on your own hardware, or call them through any host's API. Check each model's license before you ship it.

Which is smarter, Muse Glimmer 30B or Muse Spark Open?

Muse Spark Open scores higher on the Artificial Analysis Intelligence Index, 38.9 against 17.5 for Muse Glimmer 30B. The biggest differences are on Humanity's Last Exam (22 vs 43.9) and SciCode (44.9 vs 58.4).

Which has the longer context window?

Muse Spark Open accepts 1.05M tokens, against 131K for Muse Glimmer 30B.

Can I compare Muse Glimmer 30B and Muse Spark Open on my own prompt?

Yes. ModelCompare sends one prompt to both models at once and shows each answer side by side with what it cost. You can try it free without an account.

Still deciding? Send one prompt to both and read the answers side by side, with what each one cost. Compare Muse Glimmer 30B and Muse Spark Open →

Where the numbers come from

Intelligence Index and benchmark scores are from Artificial Analysis, at each model’s highest effort, except SimpleQA, which is from Epoch AI, and the Uncensored score, which is from the UGI Leaderboard. The hallucination test is ours: questions with one exact answer, fake evidence pushed against right answers and requests that tempt a model to name packages that don’t exist. Prices are list prices from models.dev. Example answers come from our own test runs. Updated October 26, 2026.