Claude Sonnet 5 vs Muse Spark 1.3: price, benchmarks and speed

Side by side

	Claude Sonnet 5	Muse Spark 1.3
Lab	Anthropic	Meta
Listed	Jun 30, 2026	Sep 2, 2026
Input per 1M tokens	$3.00	$1.88
Output per 1M tokens	$15.00	$6.38
Cached input per 1M	$0.30	$0.23
Blended (3:1) per 1M	$6.00	$3.00
Context window	1M	1M
Max output	128K	944K
Knowledge cutoff	-	-
Intelligence index	38.4	36.6
Coding index	71.5	75.8
Reasoning	Yes	Yes
Reads images	Yes	Yes
Tool use	Yes	Yes
Structured output	Yes	Yes
Measured output speed	70 tokens/s	-

Every benchmark both are scored on

Each model's best score per benchmark, with its source. Scores from different sources or settings are not always comparable; each links to where it was published.

Benchmark	Claude Sonnet 5	Muse Spark 1.3	Leader
AIME	80%Epoch AI	99.2%Epoch AI	Muse Spark 1.3
APEX-Agents	54.5%Epoch AI	58.6%Epoch AI	Muse Spark 1.3
Artificial Analysis Agentic Index	43.6Artificial Analysis and OpenRouter	55.5Artificial Analysis and OpenRouter	Muse Spark 1.3
Artificial Analysis Coding Index	71.5Artificial Analysis and OpenRouter	75.8Artificial Analysis and OpenRouter	Muse Spark 1.3
Artificial Analysis Intelligence Index	38.4Artificial Analysis and OpenRouter	36.6Artificial Analysis and OpenRouter	Claude Sonnet 5
Chess Puzzles	45%Epoch AI	37%Epoch AI	Claude Sonnet 5
Design Arena: 3D	1258 EloDesign Arena	1394 EloDesign Arena	Muse Spark 1.3
Design Arena: Android Native (agentic)	1221 EloDesign Arena	1288 EloDesign Arena	Muse Spark 1.3
Design Arena: ASCII Art	1204 EloDesign Arena	1288 EloDesign Arena	Muse Spark 1.3
Design Arena: Code	1274 EloDesign Arena	1350 EloDesign Arena	Muse Spark 1.3
Design Arena: Data Viz	1252 EloDesign Arena	1342 EloDesign Arena	Muse Spark 1.3
Design Arena: Full-stack (agentic)	1249 EloDesign Arena	1312 EloDesign Arena	Muse Spark 1.3
Design Arena: Game Dev	1275 EloDesign Arena	1344 EloDesign Arena	Muse Spark 1.3
Design Arena: Godot Game Dev (agentic)	1225 EloDesign Arena	1241 EloDesign Arena	Muse Spark 1.3
Design Arena: Mobile Apps (agentic)	1208 EloDesign Arena	1221 EloDesign Arena	Muse Spark 1.3
Design Arena: PPTX Slides (agentic)	1169 EloDesign Arena	1201 EloDesign Arena	Muse Spark 1.3
Design Arena: SVG	1190 EloDesign Arena	1322 EloDesign Arena	Muse Spark 1.3
Design Arena: UI Component	1274 EloDesign Arena	1347 EloDesign Arena	Muse Spark 1.3
Design Arena: Web Apps (agentic)	1227 EloDesign Arena	1282 EloDesign Arena	Muse Spark 1.3
Design Arena: Website	1273 EloDesign Arena	1356 EloDesign Arena	Muse Spark 1.3
DTBench	92.5%Epoch AI	96.5%Epoch AI	Muse Spark 1.3
FrontierMath Tier 4 (v2)	29.3%Epoch AI	46.3%Epoch AI	Muse Spark 1.3
FrontierMath Tiers 1-3 (v2)	65.6%Epoch AI	74%Epoch AI	Muse Spark 1.3
LMArena (Coding)	1484 EloLMArena	1509 EloLMArena	Muse Spark 1.3
LMArena (Overall)	1443 EloLMArena	1491 EloLMArena	Muse Spark 1.3
LMArena: Creative Writing	1416 EloLMArena	1464 EloLMArena	Muse Spark 1.3
LMArena: Hard Prompts	1462 EloLMArena	1503 EloLMArena	Muse Spark 1.3
LMArena: Longer Query	1463 EloLMArena	1488 EloLMArena	Muse Spark 1.3
LMArena: Math	1482 EloLMArena	1492 EloLMArena	Muse Spark 1.3
LMArena: Multi-Turn	1453 EloLMArena	1488 EloLMArena	Muse Spark 1.3
LMCA	50Epoch AI	53.9Epoch AI	Muse Spark 1.3
Mystery Game Puzzles	16%Epoch AI	25%Epoch AI	Muse Spark 1.3
ProofBench	77%Epoch AI	58%Epoch AI	Claude Sonnet 5
SciCode	54.3%Epoch AI	59.7%Epoch AI	Muse Spark 1.3
WebDev Arena	1537 EloEpoch AI	1652 EloEpoch AI	Muse Spark 1.3

In our tests and guides

Where Claude Sonnet 5 or Muse Spark 1.3 ran on a real brief, or shows in a live table.

Best AI Model for Building a Website: Eight Tested on One Brief

More comparisons

Where these figures come from

Prices are GenMagic's own, what the studio and the API charge, recomputed from each provider's price list every few minutes. The indices are the Artificial Analysis indices, and every benchmark score links to its source, re-read daily. Measured speed is GenMagic's own generation records, in aggregate. See Anthropic models, Meta models, every LLM's price and our sources.