Meta

Muse Spark 1.2

CTX1.05M

88Quality

Reasoning · Vision · Tools

Input$1.25/M

Output$4.25/M

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1 with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows.

PaidProprietary964/1044

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MetaTextUncommon

Muse Spark 1.2

Muse Spark 1.2 is a coding-focused update to Muse Spark 1.1 with improvements in code generation, complex debugging, codebase understanding, and end-to-end developer workflows.

muse-spark-1.2

Type: Text
Quality: 88 · Top 12% on the Epoch Capabilities Index
Context window: 1,048,576 tokens
Max output: 131,072 tokens
Input price: $1.25 / 1M tokens
Output price: $4.25 / 1M tokens
Cache read: $0.15 / 1M tokens
Cache write: —
Released: Aug 5, 2026
Knowledge cutoff: —
Takes in: Text, Image, Audio, Video, PDF
Puts out: Text
Reasoning: Yes
Tool calling: Yes
Structured output: Yes
File attachments: Yes
Access: Paid
License: Proprietary
Rarity: Uncommon
Set number: 964/1044

Open Meta docs Quality 88 Where to run it 17 Evolution 2/3 Meet its creature Battle GLM-5.3

Weights aren’t public. Use is governed by Meta’s terms. Specs from models.dev, last changed Oct 19, 2026. Official source: dev.meta.ai.

How good is it?

Public leaderboard scores for Muse Spark 1.2, refreshed daily from Epoch AI and LMArena.

Top 12% of the 277 models on the Epoch Capabilities Index: #35.

Quality is the share of a leaderboard’s models this one beats, from 0 to 100. Chat models are rated on Epoch AI’s Capabilities Index when it lists them, otherwise on LMArena; image and video models on LMArena’s image and video arenas.

Leaderboards

Epoch Capabilities Index#35 of 277
One number fitted from dozens of hard benchmarks, from science questions to agentic coding.154.9 index
LMArena Text#15 of 416
People compare two anonymous answers and vote for the better one.1,484 rating
Listed as Muse Spark 1.2 (xHigh)
LMArena Text · Coding#20 of 411
The text arena’s coding prompts only.1,503 rating
Listed as Muse Spark 1.2 (xHigh)
LMArena Text · Math#35 of 400
The text arena’s math prompts only.1,476 rating
Listed as Muse Spark 1.2 (xHigh)
LMArena Text · Creative writing#45 of 414
The text arena’s creative writing prompts only.1,440 rating
Listed as Muse Spark 1.2 (xHigh)
LMArena WebDev#49 of 145
Each model builds a web app from the same prompt; people pick the better one.1,534 rating
Listed as Muse Spark 1.2 (xHigh)
LMArena Vision#17 of 165
Questions about images, voted by people.1,305 rating
Listed as muse-spark-1.2 (xHigh)

Benchmarks Epoch AI runs

60%SimpleQA VerifiedShort factual questions, where guessing is penalized

Scores from Epoch AI and LMArena, licensed CC BY 4.0. Boards list models under their own names, so a close match is shown with the name it was scored under. Credits

Where to run it

17 providers sell Muse Spark 1.2 through an API. Prices are per million tokens, cheapest first.

CheapestCommandCode$0.10 in · $0.20 out
From the labMeta$1.25 in · $4.25 out

API providers

Provider	Input	Output	Context
CommandCodeCheapest paid`meta/muse-spark-1.2-contributor`	$0.10	$0.20	1.05M
Abacus`muse-spark-1.2`	$1.25	$4.25	1.05M
Cloudflare AI Gateway`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
DevPass (LLM Gateway)`muse-spark-1.2`	$1.25	$4.25	1.05M
EmpirioLabs AI`muse-spark-1-2`	$1.25	$4.25	1.05M
Kilo Gateway`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
LLM Gateway`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
Merge Gateway`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
MetaOfficial`muse-spark-1.2`	$1.25	$4.25	1.05M
NanoGPT`meta/muse-spark-1.2`	$1.25	$4.25	1M

Show 7 more providers

Provider	Input	Output	Context
OpenCode`muse-spark-1.2`	$1.25	$4.25	1.05M
OpenRouter`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
Opper`muse-spark-1.2`	$1.25	$4.25	1.05M
OrcaRouter`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
Vercel AI Gateway`meta/muse-spark-1.2`	$1.25	$4.25	1.05M
AIHubMix`muse-spark-1.2`	$1.38	$4.67	1.05M
AI/ML API`meta/muse-spark-1.2`	$1.72	$5.85	1.05M

From models.dev and Hugging Face, checked daily. Resellers’ listings can lag behind their price pages, so confirm with the provider before you commit.

Face off

Current text models from other labs at a similar output price.

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