Catalog Changes · 2026-10-14 18:04:40.429455

Meta: Muse Spark 1.3 · 2026-10-14 18:04:40.429455 UTC

OpenRouter

12 Changed Fields

Field / Array Position	Previous Value	Observed Value
Benchmarks · Design Arena[10] · Elo	1353	1354
Benchmarks · Design Arena[10] · Rank	5	4
Benchmarks · Design Arena[10] · Win Rate	57.6	57.8
Benchmarks · Design Arena[11] · Elo	1359	1358
Benchmarks · Design Arena[4] · Elo	1398	1395
Benchmarks · Design Arena[4] · Rank	5	6
Benchmarks · Design Arena[5] · Elo	1250	1246
Benchmarks · Design Arena[5] · Win Rate	50.4	49.6
Benchmarks · Design Arena[6] · Elo	1356	1355
Benchmarks · Design Arena[6] · Win Rate	57.4	57.3
Benchmarks · Design Arena[8] · Elo	1349	1347
Benchmarks · Design Arena[8] · Rank	7	8

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Meta: Muse Spark 1.3

meta/muse-spark-1.3

OpenRouter Catalog Changes

Last Observed: 2026-10-15 00:04:04.149879 UTC

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...

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Architecture And Modalities · 3

Architecture · Instruct Type API Details /architecture/instruct_type Explicit Null	Explicit Null
Architecture · Modality API Details /architecture/modality text+image+file+video->text	text+image+file+video->text
Architecture · Tokenizer API Details /architecture/tokenizer Other	Other

Benchmarks · 3

Benchmarks · Artificial Analysis · Agentic Index API Details /benchmarks/artificial_analysis/agentic_index 55.5	55.5
Benchmarks · Artificial Analysis · Coding Index API Details /benchmarks/artificial_analysis/coding_index 75.8	75.8
Benchmarks · Artificial Analysis · Intelligence Index API Details /benchmarks/artificial_analysis/intelligence_index 48.1	48.1

Catalog Identity And Metadata · 11

Canonical Slug API Details /canonical_slug meta/muse-spark-1.3-20260902	meta/muse-spark-1.3-20260902
Context Tokens API Details /context_length 1048576	1,048,576
Created API Details /created 1788378359	2026-09-02 19:45:59 UTC
Description API Details /description 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...	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...
Expiration Date API Details /expiration_date Explicit Null	Explicit Null
Hugging Face Id API Details /hugging_face_id Explicit Null	Explicit Null
Id API Details /id meta/muse-spark-1.3	meta/muse-spark-1.3
Knowledge Cutoff API Details /knowledge_cutoff Explicit Null	Explicit Null
Links · Details API Details /links/details /api/v1/models/meta/muse-spark-1.3-20260902/endpoints	/api/v1/models/meta/muse-spark-1.3-20260902/endpoints
Name API Details /name Meta: Muse Spark 1.3	Meta: Muse Spark 1.3
Supported Voices API Details /supported_voices Explicit Null	Explicit Null

Request Limits · 1

Per Request Limits API Details /per_request_limits Explicit Null	Explicit Null

Pricing · 4

Output Price · USD/Token API Details /pricing/completion 0.00000425	0.00000425
Pricing · Input Cache Read API Details /pricing/input_cache_read 0.00000015	0.00000015
Input Price · USD/Token API Details /pricing/prompt 0.00000125	0.00000125
Pricing · Web Search API Details /pricing/web_search 0.0025	0.0025

Reasoning · 2

Reasoning · Default Effort API Details /reasoning/default_effort medium	medium
Reasoning · Mandatory API Details /reasoning/mandatory True	True

Provider Limits · 3

Top Provider · Context Length API Details /top_provider/context_length 1048576	1,048,576
Top Provider · Is Moderated API Details /top_provider/is_moderated True	True
Top Provider · Max Completion Tokens API Details /top_provider/max_completion_tokens 943718	943,718

API Structure And Container Types

Architecture API Details /architecture Object · See Fields	Object · See Fields
Architecture · Input Modalities API Details /architecture/input_modalities Array · See Items	Array · See Items
Architecture · Output Modalities API Details /architecture/output_modalities Array · See Items	Array · See Items
Benchmarks API Details /benchmarks Object · See Fields	Object · See Fields
Benchmarks · Artificial Analysis API Details /benchmarks/artificial_analysis Object · See Fields	Object · See Fields
Benchmarks · Design Arena API Details /benchmarks/design_arena Array · See Items	Array · See Items
Default Parameters API Details /default_parameters Object · See Fields	Object · See Fields
Links API Details /links Object · See Fields	Object · See Fields
Pricing API Details /pricing Object · See Fields	Object · See Fields
Reasoning API Details /reasoning Object · See Fields	Object · See Fields
Reasoning · Supported Efforts API Details /reasoning/supported_efforts Array · See Items	Array · See Items
Supported Parameters API Details /supported_parameters Array · See Items	Array · See Items
Top Provider API Details /top_provider Object · See Fields	Object · See Fields

Architecture · Input Modalities

4 items · source order preserved

text
image
video
file

API Details

Item	/architecture/input_modalities/*
1	text
2	image
3	video
4	file

Architecture · Output Modalities

1 items · source order preserved

text

API Details

Item	/architecture/output_modalities/*
1	text

Supported Parameters

12 items · source order preserved

include_reasoning
max_tokens
reasoning
reasoning_effort
repetition_penalty
response_format
structured_outputs
temperature
tool_choice
tools
top_k
top_p

API Details

Item	/supported_parameters/*
1	include_reasoning
2	max_tokens
3	reasoning
4	reasoning_effort
5	repetition_penalty
6	response_format
7	structured_outputs
8	temperature
9	tool_choice
10	tools
11	top_k
12	top_p

Benchmarks · Design Arena

13 items · source order preserved

Item	Arena	Category	Elo	Rank	Win Rate
1	agents	fullstack	1312	3	60.8
2	agents	mobileapps	1219	10	47.9
3	agents	python-pptxslides	1244	10	51.4
4	agents	webapps	1290	2	54.7
5	models	3d	1395	6	63.6
6	models	asciiart	1246	17	49.6
7	models	codecategories	1355	5	57.3
8	models	dataviz	1345	6	58
9	models	gamedev	1347	8	56
10	models	svg	1325	2	54
11	models	uicomponent	1354	4	57.8
12	models	website	1358	2	58.2
13	agents	godotgamedev	1241	7	45.8

API Details

Item	/benchmarks/design_arena/*/arena	/benchmarks/design_arena/*/category	/benchmarks/design_arena/*/elo	/benchmarks/design_arena/*/rank	/benchmarks/design_arena/*/win_rate
1	agents	fullstack	1312	3	60.8
2	agents	mobileapps	1219	10	47.9
3	agents	python-pptxslides	1244	10	51.4
4	agents	webapps	1290	2	54.7
5	models	3d	1395	6	63.6
6	models	asciiart	1246	17	49.6
7	models	codecategories	1355	5	57.3
8	models	dataviz	1345	6	58
9	models	gamedev	1347	8	56
10	models	svg	1325	2	54
11	models	uicomponent	1354	4	57.8
12	models	website	1358	2	58.2
13	agents	godotgamedev	1241	7	45.8

Reasoning · Supported Efforts

6 items · source order preserved

max
xhigh
high
medium
low
minimal

API Details

Item	/reasoning/supported_efforts/*
1	max
2	xhigh
3	high
4	medium
5	low
6	minimal