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Muse Spark 1.3
● live- Released
- September 2, 2026
- Price
- $1.25 / $4.25 per 1M tokens
- Context
- 1.05M tokens
- Bench index
- 47.7 · #21 of 44
Live — Sep 2; $1.25/$4.25 per 1M and 1M ctx, identical to 1.2; Meta: ~20% fewer tool calls, ~25% fewer tokens vs 1.2; open weights on the roadmap, undated; the open-weights Spark shipped Oct 15 as Muse Spark Open (its own entry). The watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.
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Timeline
Meta released Muse Spark 1.3 today. Its own words: "We're excited to release Muse Spark 1.3, which delivers improved performance across agentic and coding tasks." The numbers Meta gives are efficiency, not capability: ~20% fewer tool calls and ~25% fewer tokens than 1.2 on coding work, fewer interaction turns, less…
On the bench index
Coding leaderboard
#14 of 45 on the coding index, at 68.9 · combines LMArena · Coding, LiveBench · Coding, Vals Vibe Code Bench
The official word
We alert on verified API behavior, never on announcements alone — but when Meta speaks, it's here: ai.meta.com/blog ↗
Where to use Muse Spark 1.3
19 providers list Muse Spark 1.3 in the models.dev catalog (as of 2026-11-03), under the model ids shown below.
muse-spark-1.3 · muse-spark-1.3-contributormeta/muse-spark-1.3 · meta/muse-spark-1.3-contributormeta/muse-spark-1.3 · meta/muse-spark-1.3-contributormeta/muse-spark-1.3muse-spark-1.3muse-spark-1.3-contributorcline-pass/muse-spark-1.3-contributormeta/muse-spark-1.3meta/muse-spark-1.3 · meta/muse-spark-1.3-contributormuse-spark-1.3 · muse-spark-1.3-contributormeta/muse-spark-1.3muse-spark-1-3Also listed by Kilo Gateway, LLM Gateway, NanoGPT, OpenCode, OpenCode Go, Opper, Requesty.
Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.
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Muse Spark 1.3: quick answers
Is Muse Spark 1.3 out?
Yes. Muse Spark 1.3 is live and has been since September 2, 2026.
When was Muse Spark 1.3 released?
September 2, 2026.
Is Muse Spark 1.3 good for coding?
On the ArtificialWatch coding index it scores 68.9, #14 of 45 ranked models. The index combines LMArena · Coding, LiveBench · Coding and Vals Vibe Code Bench, taking the median of each model's percentile across them.
Who makes Muse Spark 1.3?
Meta. ArtificialWatch also tracks Muse Spark Open, Muse Wonder, Muse Glimmer 30B, Muse Code, Muse Spark 1.2, Muse Spark 1.1, Muse Image and Llama 5 from Meta.
Where can I use Muse Spark 1.3?
19 providers list it in the models.dev catalog, including Meta, OpenRouter, Vercel AI Gateway, AI/ML API and AIHubMix. The exact model ids each one lists are on this page.
How much does Muse Spark 1.3 cost?
Meta's own API lists Muse Spark 1.3 (muse-spark-1.3) at $1.25 per million input tokens and $4.25 per million output tokens, and $0.15 per million cached input tokens. Prices as published in the models.dev catalog, as of 2026-11-03.
What is Muse Spark 1.3's context window?
1.05M tokens, with up to 131K output tokens per response, as Meta lists Muse Spark 1.3 (muse-spark-1.3).
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