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META · PROPRIETARY

Muse Spark 1.2

See how this model performed in tests and what it could cost for your tasks.
Thinking setting tested: xhigh.

Data reviewed · LiveBench question set: 25 June 2026 · View every source ↗ · Download the data ↓

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Agent Fit76.3General agent profile
Practical Value68.470% capability · 30% cost
Estimated monthly API cost$211,000 calls · 10K input + 2K output
Catalog context window1.05MAdvertised capacity

Results by type of task

Explain these tests ↗
ReasoningCodingAgentic codeMathematicsDataLanguageInstructions
Reasoning90.0 / 100
Coding77.5 / 100
Agentic coding57.6 / 100
Mathematics91.2 / 100
Data analysis76.5 / 100
Language78.6 / 100
Instruction following74.3 / 100

What the evidence says

Muse Spark 1.2 scores 78.0 on LiveBench, averaging its seven task categories equally. Its highest measured category is mathematics (91.2); its lowest is agentic coding (57.6). Categories differ in difficulty, so these are test results, not universal strengths or weaknesses.

Our General agent profile produces an Agent Fit score of 76.3 by emphasizing reasoning, instruction following, agentic coding, coding and data analysis. See the exact weights or adjust the profile in the interactive comparison.

How people rated its answers

Arena reports 1492 ± 8 from 6,118 votes for muse-spark-1.2 (xHigh). Combined with LiveBench, its Evidence Consensus score is 55.6 within our 10 versions and settings tested in both sources. This does not represent a market-wide rank.

API features to verify

The catalog lists tool-calling support and image input. These are declared features, not evaluations of tool accuracy or visual understanding.

This is a proprietary model accessed through a provider. Availability, rate limits, data handling and service tiers depend on the endpoint and account.

Muse Spark 1.2 API pricing

Input is what you send to the model; output is what it produces, including charged thinking tokens. Prices are per million tokens, the small pieces of text the model processes.

Input / 1M tokens$1.25
Output / 1M tokens$4.25

Direct/source price observed 2026-10-15; catalog offer rechecked 2026-10-15. Older observations remain dated until verified again.

At the baseline of 1,000 calls, 10,000 input tokens and 2,000 billed output tokens per call, the text API estimate is $21. Reasoning belongs in billed output. Caching, tools, retries, long-context premiums, service tiers, hosting and taxes are excluded.

Trace this model to the source

LiveBench row ID
muse-spark-1.2-xhigh
Question-set release
2026-06-25 · Source CSV ↗
Arena configuration
muse-spark-1.2 (xHigh) ↗
Reviewed snapshot
2026-10-15

Compare alternatives

For production decisions, test examples from your own work using the same tools and a clear definition of success. Neither a large context window nor a strong benchmark score guarantees reliability in your own agent.

AI Agent Store · Model comparisons · Data reviewed 2026-10-15Sources, limitations & corrections ↗