Muse Spark Open

Meta
Muse Spark Open launch post cover

Cost/1M tokens

input
$1.25
cached
$0.15
output
$4.25
Context
1Mtokens
Listed
4w ago
Size
822Bparameters

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Arena leaderboards and other sourced evaluations appear below; missing scores are not zero.

How it ranks

Against its predecessor, similarly priced models and the models ranked around it.

DeepSWE 1.1

Best pass@1 per model · Higher is better

Not evaluated in DeepSWE 1.1

Arena Text

Best Arena rating per model · Higher is better

Not ranked on Arena Text yet

Arena WebDev

Best Arena rating per model · Higher is better

Arena #59

  1. 1679
    GPT-6.1 TerraSimilar price
  2. 1538
    Gemini 3.6 FlashNearby rank
  3. 1534
    Muse Spark 1.2Nearby rank
  4. 1526
    Muse Spark Open
  5. 1522
  6. 1520
    GPT-5.6 TerraNearby rank
  7. 1515
    Qwen3.7 MaxSimilar price
  8. 1399
    GLM 5V TurboSimilar price
  9. 1330
    Claude Haiku 4.5Similar price

Ahead of 2 of 4 similarly priced models

Arena Vision

Best Arena rating per model · Higher is better

Not ranked on Arena Vision yet

Arena Search

Best Arena rating per model · Higher is better

Not ranked on Arena Search yet

Arena Document

Best Arena rating per model · Higher is better

Not ranked on Arena Document yet

Agent Arena

Best IPS score per model · Higher is better

Not ranked on Agent Arena yet

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

All published scores

Arena ratings: Arena (lmarena-ai/leaderboard-dataset), licensed CC BY 4.0. Ratings come from pairwise human votes and are only comparable within one leaderboard; the interval is Arena's 95% confidence interval. Model names are matched to the Vertical Tabs catalog.

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