meta / text-generation API-only released 2026-08-05

Muse Spark 1.2

Name: Muse Spark 1.2
Price: 1.25 USD
Author: meta

Muse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks. It accepts text, images, video, and PDF documents, returns text, and offers a 1M-token context window....

Input / 1M

$1.25

Output / 1M

$4.25

Context

AA Intelligence

39.6

Closed weights — available only as a hosted API text + image + video + file → text View on OpenRouter ↗

Pricing

via OpenRouter · USD per 1M tokens · synced 2026-10-24

$1.25

input / 1M

$4.25

output / 1M

$0.15

cached input / 1M

$5.50

1M in + 1M out

Context window: 1,048,576 tokens
Max output: 943,718 tokens
Providers: 1
Cheapest provider: Meta · $1.25 / $4.25
Best throughput: —
AA Intelligence / Coding / Agentic: 39.6 / 72.2 / 43.2

✓ Tool calling ✓ Reasoning ✓ Structured outputs ✓ Image input ✓ File input ✗ Audio input ✓ Prompt caching

Price history

tracking started — chart appears after 7 days of snapshots (6 recorded)

Current: $1.25 input · $4.25 output per 1M tokens

Benchmarks

Third-party indices as published through OpenRouter — Artificial Analysis and Design Arena. Not measured by us.

AA Intelligence Index: 39.6
AA Coding Index: 72.2
AA Agentic Index: 43.2

Design Arena

CategoryEloWin %Rank

agenticgamedev 1178 42.3% #15

androidnative 1223 53.2% #10

blender3d 1078 38.9% #18

fullstack 1210 48% #15

htmlslides 1031 40% #22

mobileapps 1181 47.7% #22

python-pptxslides 1150 48.5% #18

webapps 1221 50.2% #18

3d 1303 51.7% #19

asciiart 1281 55.4% #6

codecategories 1312 52% #11

dataviz 1335 57.7% #8

gamedev 1303 50.4% #18

svg 1283 55.2% #11

uicomponent 1297 52% #17

website 1312 52.2% #10

Providers

1 provider · per 1M tokens · last 30 min metrics

Provider	Quant	Context	Input	Output	Uptime	Tok/s
Meta	unknown	1M	$1.25	$4.25	100%	—

Provider data from OpenRouter's endpoint listing, refreshed daily.

Specifications

Organisation: meta
Released on OpenRouter: 2026-08-05
Context window: 1,048,576 tokens
Max output: 943,718 tokens
Input: text, image, video, file
Output: text
Tokenizer: Other
Moderated by provider: Yes
OpenRouter id: meta/muse-spark-1.2

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Prices, context and providers from the public OpenRouter API, snapshotted daily; benchmark indices from Artificial Analysis. See /methodology.