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Migrating from muse-spark-1.1 to muse-spark-1.2

What changes when you move from muse-spark-1.1 to muse-spark-1.2: input price 0%, output price 0%.

Status
Active
Shutdown
none announced
Time left
—
Status
Active
Shutdown
none announced
Time left
—

Prices

USD per 1M tokens, standard tier
Typemuse-spark-1.1muse-spark-1.2Change
Input$1.25first seen October 5, 2026 · source$1.25first seen October 5, 2026 · source0%
Cached input$0.15first seen October 5, 2026 · source$0.15first seen October 5, 2026 · source0%
Output$4.25first seen October 5, 2026 · source$4.25first seen October 5, 2026 · source0%

At 1M input and 250K output tokens a month: $2.3125 on muse-spark-1.1, $2.3125 on muse-spark-1.2 (0%).

Other tiers, prompt-size bands and modalities are on each model's page.

Limits

Tokens

Neither company publishes a context window or output limit for these models.

Benchmarks

Same benchmark and source on both sides; settings named where they differ
Benchmarkmuse-spark-1.1muse-spark-1.2Change
Arena TextArena, xhigh effort (vs no setting).1490 ±41495 ±7+5
within range
Arena Text: CodingArena, xhigh effort (vs no setting).1533 ±71538 ±13+5
within range
Arena WebDevArena, xhigh effort (vs no setting).1542 ±81533 ±14−9
within range
Arena VisionArena, xhigh effort (vs no setting).1280 ±71293 ±14+13
within range
Arena AgentArena, xhigh effort (vs no setting).-0.062 ±0.007-0.065 ±0.008−0.003
within range
SimpleQA VerifiedEpoch AI, xhigh effort (vs no setting).57.8%60.3%+2.5 pts

A score from one source is never compared with another source's, and company-reported scores are compared only within the same company; settings named where they differ. Data: Arena (arena.ai), CC BY 4.0; Epoch AI, Capabilities & benchmarking (epoch.ai/benchmarks), CC BY.

Features and parameters

Compare models

Neither company publishes feature facts for these models.

No aliases point at either model.

Checklist

  1. Change the model string from muse-spark-1.1 to muse-spark-1.2.

Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: muse-spark-1.1, muse-spark-1.2.