Meta
·Released on Sep 2, 2026

Muse Spark 1.3 API Benchmarks, Pricing & Provider Data

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Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...

Category Performance

Observed-capability estimates with uncertainty reported separately from independent benchmark families.

Coverage
2 / 8
Methodology
V3.0
Category PerformanceObserved-capability estimates with uncertainty reported separately from independent benchmark families.Agents-Coding64Reasoning63.5Knowledge-Math-Multilingual-Multimodal-Instruction following-
#1Coding64Provisional1/4 Measured dimensions
80% interval: 48.079.9
code generation64
scicode · scicode
repository engineeringPrior only
debugging testingPrior only
tooling qualityPrior only
#2Reasoning63.5Provisional1/4 Measured dimensions
80% interval: 49.677.4
abstract logicPrior only
scientific causal63.5
gpqa · gpqa / hle · hle
multistep constraintsPrior only
evidence verificationPrior only
No data:AgentsKnowledgeMathMultilingualMultimodalInstruction following

Specifications

Input and output token limits for this model, plus how it ranks on long-context understanding.

INPUT
1.0Mtokens
1.3K pages of text
OUTPUT
943.7Ktokens
8K128K1M4M
1.0M

Features

Technical Details

Input
Output
Released
Sep 2026
Documentation
Tokenizer
Other
Architecture
text+image+file+audio+video->text
Moderated
Yes
Supported parameters
include_reasoningmax_tokensreasoningreasoning_effortrepetition_penaltyresponse_formatstructured_outputstemperaturetool_choicetoolstop_ktop_p

Rankings

Excels at

Detailed scores

Updated: Sep 4, 2026

Agents

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Planning & decompositionPrior only
Tool usePrior only
Environment & long-horizon executionPrior only
Recovery & completion reliabilityPrior only

Coding

V3.0

undefined metric} other undefined metrics}} · Provisional

Score6480% interval48.0–79.91/4 Measured dimensionsSciCode57.3%#6 / 209
Dimensions and evidence
Code generation64
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
scicode · scicode · z 1.74 · q 1.00
Repository engineeringPrior only
Debugging & testingPrior only
Tool-assisted development & qualityPrior only
SciCodeV3 evidence
LMSpeed rank#6
Score57.3%
UpdatedSep 4, 2026
Confidence4

Reasoning

V3.0

undefined metric} other undefined metrics}} · Provisional

Score63.580% interval49.6–77.41/4 Measured dimensionsGPQA93.8%#6 / 216HLE49.1%#7 / 213
Dimensions and evidence
Abstract logicPrior only
Scientific & causal reasoning63.5
undefined family} other undefined families}} · undefined metric} other undefined metrics}}
gpqa · gpqa · z 1.45 · q 1.00
hle · hle · z 1.12 · q 1.00
Multi-step constraintsPrior only
Evidence integration & verificationPrior only
GPQAV3 evidence
LMSpeed rank#6
Score93.8%
UpdatedSep 4, 2026
Confidence4
HLEV3 evidence
LMSpeed rank#7
Score49.1%
UpdatedSep 4, 2026
Confidence4

Knowledge

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Broad knowledgePrior only
Professional knowledgePrior only
FactualityPrior only
Retrieval & open-book usePrior only

Math

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Foundational mathPrior only
Competition mathPrior only
Advanced proofsPrior only
Applied & tool-assisted mathPrior only

Multilingual

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Cross-language understandingPrior only
Multilingual generationPrior only
Reasoning transferPrior only
Low-resource robustnessPrior only

Multimodal

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Perception & OCRPrior only
Document & spatial understandingPrior only
Visual reasoningPrior only
Video & grounded actionPrior only

Instruction following

V3.0

undefined metric} other undefined metrics}} · No data

No data80% interval30.8–69.20/4 Measured dimensions
Dimensions and evidence
Constraint followingPrior only
Structured outputPrior only
Novel-instruction generalizationPrior only
Multi-turn & long instructionsPrior only

Alternatives & Similar Models

Also known as

meta/muse-spark-1.3

Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.Artificial AnalysisStandard benchmark data may include BenchLM and other public sources.

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