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Muse Spark 1.2 (xhigh)

MetaProprietary

Description

Muse Spark 1.2 is Meta Superintelligence Labs' proprietary multimodal reasoning model for long-horizon coding and whole-repository agentic work. It supports a 1,048,576-token context window and is available through the Meta Model API in standard and contributor tiers. The contributor endpoint offers discounted inference in exchange for allowing prompts and completions to be used to improve Meta's products; ZeroEval routes to that endpoint while distinguishing its conditional pricing from the standard tier.

Release Date
2026-08-05
Parameters
—
Context Length
1.0M
Modalities
audio, image, pdf, text, video

Capability Radar

41
general
70
coding
90
reasoning
70
science
80
agents
90
multimodal

Rankings

Domain#RankScoreSource
Code Ranking69
88.0
AA
General Ranking97
67.0
AA
Math Reasoning30
91.0
LB
Reasoning15
90.0
LB
Science33
84.0
AA

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

Code

Meta Internal Coding Bench70.6%SR
DeepSWE 1.159.3%SR

Reasoning

Terminal-Bench 2.182.9%SR

AA Evaluation Indices

(Artificial Analysis)
Gpqa(NYU + Cohere + Anthropic (2023))
90.4
Terminalbench V2 1
80.1
Lcr(Artificial Analysis)
79.0
Coding Index(Artificial Analysis)
72.2
Scicode(UIUC + Argonne National Lab (2024))
57.4
Hle(Center for AI Safety + Scale AI (2025))
45.5
Intelligence Index(Artificial Analysis)
39.6
Tau Banking
34.8
Terminalbench V4 0
7.1

LLM Stats Category Scores

(LLM Stats (zeroeval))
Reasoning
80
Tool Calling
80
General
70
Agents
70
Code
70

Pricing

Input Price$1.25 / 1M tokens
Output Price$4.25 / 1M tokens
Blended Price (3:1)$2 / 1M tokens
Cache Read Price$0.15 / 1M tokens

Speed

Tokens/sec0.0
Time to First Token0.00s
Time to Answer0.00s

Provider Price Ranking

Provider Price Ranking

15 providers

Cheapest: Meta Model APIMost Expensive: AIHubMix
ProviderInputOutput
1Meta Model APICheapest
$0
$0
2MetaPRIMARY
$1.25
$4.25
3NanoGPT
$1.25
$4.25
4Abacus
$1.25
$4.25
5OpenRouter
$1.25
$4.25
6Kilo Gateway
$1.25
$4.25
7OpenCode Zen
$1.25
$4.25
8Vercel AI Gateway
$1.25
$4.25
9DevPass (LLM Gateway)
$1.25
$4.25
10OrcaRouter
$1.25
$4.25
11Merge Gateway
$1.25
$4.25
12EmpirioLabs AI
$1.25
$4.25
13LLM Gateway
$1.25
$4.25
14Opper
$1.25
$4.25
15AIHubMix
$1.375
$4.675

Compare pricing across different API providers for this model.

External Sources