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Muse Spark 1.3

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CAPABILITY & COST

What else is worth comparing?

Muse Spark 1.374.0% mean scoreFrontierMath tiers 1–3 · v2 · 2026-09-18
$2.3131M input + 250k output tokens
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This modelSelected alternativesOther dots: models with both score and price
LOWER COST · NO LOWER POINT SCORE

GPT-6 Luna

$0.225per workload78.9% mean score

+4.9 pp · $2.088 less
Evaluated / snapshot 2026-09-22

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HIGHER POINT SCORE · COST WITHIN +15%

GPT-5.6 Luna

$0.50per workload82.1% mean score

+8.1 pp · $1.813 less
Evaluated / snapshot 2026-07-09

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Compare this selection

Same test and configuration; differences in point scores are not proof of a meaningful advantage. Nearby score does not mean equivalent capability.

INDEPENDENT EVALUATIONS

Results in context

Where does it sit?

Five nearest ECI estimates · current snapshot, not release-time scores.

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Overlapping intervals do not establish a clear winner. ECI combines source-selected benchmarks; points are not percentages. Snapshot 2026-10-24.

Test by test

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FrontierMath tiers 1–3 · v2 · max · 2026-09-18 · 22 included results

Each row is a different test, not a common difficulty scale. “Max” does not mean equal compute across providers.

What changes your bill?

Illustrative token baskets, not measured tasks.

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Short exchange1K input + 250 output tokens$0.0023
Long answer4K input + 4K output tokens$0.022
Document analysis100K input + 2K output tokens$0.1335
Repeated workload1M input + 250K output tokens$2.3125

List prices, captured 2026-10-25. Excludes caching, batch discounts, tools and retries. Token baskets are not estimates of a specific task’s token use.

Within the same developer

Five lowest listed workload costs, plus this model.

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Fixed basket: 1M input + 250k output. Logarithmic positions; labels show actual USD. Lower cost does not imply equivalent capability.

PUBLISHED LIMITS

Room to read
Room to respond

Context and maximum output are separate limits, not a quality score. They are not added together.

Context window1Mtokens
Maximum output943.7Ktokens

Published specifications

Context window1Mtokens
API input price$1.25USD / million tokens
API output price$4.25USD / million tokens
Maximum output943.7Kmaximum tokens per response
Output modalitiestextpublished output types
Supported parameters12API parameters listed

Model information

Provider
meta
Input modalities
text, image, video, file
Output modalities
text
Maximum output
943,718 tokens
Supported parameters
include_reasoning, max_tokens, reasoning, reasoning_effort, repetition_penalty, response_format, structured_outputs, temperature, tool_choice, tools, top_k, top_p
Added to catalogue
2026-09-02
Knowledge cutoff
Not available
Catalogue snapshot
2026-10-25

Prices are per million tokens. The workload estimate uses 1,000 input and 250 output tokens. Context describes request capacity, not model quality.

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