Model comparison

Claude Instant vs Muse Spark 1.3

Muse Spark 1.3 has enough public results to be ranked (#27); Claude Instant does not yet, so treat this comparison as directional.

Last verified . 2 shared benchmarks.

Claude Instant Anthropic

28.8

Unranked Sparse

Muse Spark 1.3 Meta

54.4

Rank #27 Confirmed

Summary

  • They share 2 benchmarks with published results for both. Claude Instant scores higher in 0 categories and Muse Spark 1.3 in 1 category; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where Muse Spark 1.3 leads 52.9 to 18.8.
  • The biggest single-benchmark swing is DTBench: 45.8% for Claude Instant and 96.5% for Muse Spark 1.3.

Side by side

Claude Instant and Muse Spark 1.3 specifications
Claude InstantMuse Spark 1.3
ProviderAnthropicMeta
Noometry Index28.854.4
Released2023-08-092026-09-02
WeightsProprietaryProprietary
Context window—1.05M
Max output—131K
Input $ / M tokens—$1.25
Output $ / M tokens—$4.25
Results tracked734

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Category by category

Coding Not comparable

Claude Instant: —, Muse Spark 1.3: 56.1 (#18)

Coding benchmarks
BenchmarkClaude InstantMuse Spark 1.3
CursorBench—41.6%
LMArena WebDev—1655
SciCode—59.7%
LMArena Coding—1516
HumanEval+50.6%—

Agentic & Tool Use Not comparable

Claude Instant: —, Muse Spark 1.3: 38.6 (#28)

Agentic & Tool Use benchmarks
BenchmarkClaude InstantMuse Spark 1.3
APEX-Agents—57.8%
GDP.pdf—27.6%

Reasoning Muse Spark 1.3 leads

Claude Instant: 18.8, Muse Spark 1.3: 52.9 (#27)

Reasoning benchmarks
BenchmarkClaude InstantMuse Spark 1.3
DTBench45.8%96.5%
Epoch Capabilities Index120.2156.89
NYT Connections (extended)—85.1%
CritPt—24.9%
Chess Puzzles—38%
LMArena Hard Prompts—1503
Mystery Game Puzzles—25%
LMCA—53.9%
Bench to the Future 3—0.14

Math Not comparable

Claude Instant: —, Muse Spark 1.3: 72.4 (#16)

Math benchmarks
BenchmarkClaude InstantMuse Spark 1.3
FrontierMath (Tiers 1-3)—74.4%
FrontierMath Tier 4—46.3%
OTIS Mock AIME 2024-2025—99.2%
LMArena Math—1497
GSM8K86.7%—

Knowledge Not comparable

Claude Instant: —, Muse Spark 1.3: 42.0 (#92)

Knowledge benchmarks
BenchmarkClaude InstantMuse Spark 1.3
LMArena Expert—1516
ARC (AI2) Challenge86.3%—
MMLU73.4%—
TriviaQA78.9%—

Multimodal Not comparable

Claude Instant: —, Muse Spark 1.3: 43.0 (#21)

Multimodal benchmarks
BenchmarkClaude InstantMuse Spark 1.3
LMArena Vision—1310
LMArena Document—1471

Multilingual Not comparable

Claude Instant: —, Muse Spark 1.3: 57.8 (#6)

Multilingual benchmarks
BenchmarkClaude InstantMuse Spark 1.3
LMArena Non-English—1485
LMArena Chinese—1527
LMArena French—1534
LMArena Korean—1513
LMArena Russian—1491
LMArena Spanish—1485

Instruction Following Not comparable

Claude Instant: —, Muse Spark 1.3: 77.8 (#14)

Instruction Following benchmarks
BenchmarkClaude InstantMuse Spark 1.3
LMArena Instruction Following—1481

Long Context Not comparable

Claude Instant: —, Muse Spark 1.3: 45.7 (#29)

Long Context benchmarks
BenchmarkClaude InstantMuse Spark 1.3
LMArena Longer Query—1491

Writing & Preference Not comparable

Claude Instant: —, Muse Spark 1.3: 73.7 (#10)

Writing & Preference benchmarks
BenchmarkClaude InstantMuse Spark 1.3
LMArena Text—1490
LMArena Creative Writing—1450
EQ-Bench Creative Writing—1906
LMArena Multi-Turn—1486

Frequently asked questions

Is Claude Instant better than Muse Spark 1.3?

Muse Spark 1.3 has enough public results to be ranked (#27); Claude Instant does not yet, so treat this comparison as directional.

How many benchmarks do Claude Instant and Muse Spark 1.3 share?

2 benchmarks have published results for both models. Claude Instant has 7 scored results on Noometry and Muse Spark 1.3 has 34.

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