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Muse Spark 1.2

A coding-optimized model purpose-built for agentic workflows.

text + image + file → text · made by Meta

$1.25→$4.25per Mtok in / out
Meta · 5 sellers

Sold by 8 ways

SellerLaneRate
Meta apistandard$1.25per Mtok in$4.25per Mtok out$0.15per Mtok cacheddeveloper.meta.com · read 2026-08-25
OpenRouter aggregatornot on the seller's list todayalt$0.1per Mtok in$0.2per Mtok out$0.002per Mtok cachedopenrouter.ai · read 2026-08-26
OpenRouter aggregatornot on the seller's list todaycontributor$0.1per Mtok in$0.2per Mtok out$0.002per Mtok cachedopenrouter.ai · read 2026-08-25
OpenRouter aggregatornot on the seller's list todaymeta alt$0.1per Mtok in$0.2per Mtok out$0.002per Mtok cachedopenrouter.ai · read 2026-08-26
OpenRouter aggregatorstandard$1.25per Mtok in$4.25per Mtok out$0.15per Mtok cachedopenrouter.ai · read 2026-08-24
ElectronHub aggregatorstandard$1.25per Mtok in$4.25per Mtok outapi.electronhub.ai · read 2026-10-31
Nous Research aggregatorstandard$1.25per Mtok in$4.25per Mtok out$0.15per Mtok cachedinference-api.nousresearch.com · read 2026-09-12
Vercel AI Gateway aggregatorstandard$1.25per Mtok in$4.25per Mtok out$0.15per Mtok cachedai-gateway.vercel.sh · read 2026-08-25

Measured 42 standings

PlaceBoardMetricScore
7thof 56Humanity's Last Exam (Epoch AI replication)Accuracy40.56
9thof 165LMArena · VisionScore (Elo)1294
9thof 102Simplebench — Epoch AIScore (AVG@5)0.745
10thof 93Design Arena · asciiart (models)Elo1283
11thof 414LMArena · TextScore (Elo)1492
13thof 101FrontierMath (Tiers 1-3)mean_score39
14thof 154Design Arena · dataviz (models)Elo1332
15thof 169Design Arena · website (models)Elo1311
16thof 54Design Arena · androidnative (agents)Elo1219
16thof 93Simpleqa verified — Epoch AImean_score (xhigh)60.302
18thof 72Frontiermath tier 4 — Epoch AImean_score14.6
19thof 163Design Arena · codecategories (models)Elo1311
20thof 21Frontierswe — Epoch AIScore (xhigh)11.97
21stof 39Design Arena · agenticgamedev (agents)Elo1129
23rdof 131Artificial Analysis · Agentic IndexIndex43.2
23rdof 61Design Arena · fullstack (agents)Elo1210
24thof 114Design Arena · svg (models)Elo1279
26thof 39Design Arena · blender3d (agents)Elo1067
26thof 41Design Arena · python-pptxslides (agents)Elo1149
26thof 157Design Arena · uicomponent (models)Elo1301
26thof 53LMArena · AgentNet Improvement (%)5
28thof 68Design Arena · webapps (agents)Elo1210
29thof 163Artificial Analysis · Coding IndexIndex72.2
30thof 162Design Arena · gamedev (models)Elo1300
31stof 150Design Arena · 3d (models)Elo1300
31stof 36Design Arena · htmlslides (agents)Elo1031
31stof 235Scicode — Epoch AIScore (xhigh)57.407
34thof 41Design Arena · spreadsheet (agents)Elo1059
37thof 68Design Arena · mobileapps (agents)Elo1184
38thof 69Deepswe — Epoch AIPass@1 (xhigh)0.549
38thof 56Gdp pdf — Epoch AIGDP.pdf score (xhigh)0.16
38thof 84Proofbench — Epoch AIAccuracy43
41stof 60Apex agents — Epoch AIPass@1 score0.454
45thof 135Webdev arena — Epoch AIArena Score (xhigh)1534.38
46thof 141LMArena · WebDevScore (Elo)1532
52ndof 235Dtbench — Epoch AIAccuracy (xhigh)94.67
53rdof 326GPQA Diamondmean_score89.8
53rdof 173Weirdml — Epoch AIAccuracy (xhigh)60.3
76thof 154Chess puzzles — Epoch AImean_score (xhigh)27
77thof 197Lmca — Epoch AIScore (xhigh)48.35
78thof 260Critpt — Epoch AIAccuracy (xhigh)17.714
79thof 306OTIS Mock AIME 2024-2025mean_score88.9

About

Muse Spark 1.2 — a text model from Meta, sold by 5 companies from $1.25 in and $4.25 out per million tokens, placed 11th of 414 on LMArena · Text.

It takes text, images and files and returns text, with a context window of 1,048,576 tokens. It was published in August 2026. Its sellers say it can reason step by step and call a tool. The catalogue files it under reasoning, code and agents. Five companies sell it. The cheapest is $1.25 in and $4.25 out per million tokens at ElectronHub. It has been measured on 42 boards, and stands best at 11th of 414 on LMArena · Text.

Every current figure

Maker
Meta
Register
model
Takes
text + image + file
Returns
text
Context
1,048,576 tokens
Published
August 2026
Licence
not read
Sellers
5
Price
$1.25 in and $4.25 out per million tokens — ElectronHub
Boards
42
Best place
11th of 414 — LMArena · Text

Known as 6 names

Muse Spark 1.2 (xhigh)Muse Sparkmuse-sparkmuse-spark-1.2 (xHigh)muse-spark-1.2meta/muse-spark-1.2