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Meta: Muse Spark Open

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meta/muse-spark-open

Muse Spark Open is Meta’s AI model, released Oct 15, 2026. It costs $1.25/M input and $4.25/M output tokens, and handles a 1M-token context window.

Muse Spark Open is a coding-optimized open-weight model.

Context
1M
Input
$1.25 / 1M
Output
$4.25 / 1M
Released
Oct 15, 2026
Modalities
textimagevideofileaudio→text

Benchmarks

Scores on standardized evaluations. Higher is better — and rank shows where Muse Spark Open lands among all models tracked on Model Beat.

No standardized benchmark scores from Epoch AI yet — common for very recent, image, or niche models. Scores appear here once published.

In the news

1

Changelog

1
  • Muse Spark Open (Meta) added to the tracker: $1.25/$4.25 per 1M, 1M context.tracked · Oct 15, 2026

Compare Muse Spark Open with

Muse Spark Open vs Claude Opus 5.5Muse Spark Open vs GPT-6 AstraMuse Spark Open vs Kimi K3Muse Spark Open vs Gemini 3.7 FlashMuse Spark Open vs Grok 4.6

Frequently asked questions

What is Muse Spark Open?

Muse Spark Open is a coding-optimized open-weight model.

Who created Muse Spark Open?

Muse Spark Open is an AI model developed by Meta, released Oct 15, 2026.

How much does Muse Spark Open cost?

Muse Spark Open is served from $1.25 per million input tokens and $4.25 per million output tokens (cheapest credible provider on OpenRouter: Together).

What is Muse Spark Open's context window?

Muse Spark Open supports a context window of up to 1M tokens.

Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Oct 19, 2026.