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Muse Spark Open

meta/muse-spark-openInputOutput

Compare its 5 providers Incident RSSCompare with Muse Glimmer 30B, Muse Spark 1.1, Muse Spark 1.2

CompareMuse Spark Open

	State
BaseTenbaseten/fp4fp4	Healthy	100%	100%	100%	100%	527ms	1.98s	227 tps	1.0M	$1.25 / $4.25
Fireworksfireworks	Healthy	100%	86.63%	87.59%	87.59%	533ms	19.9s	59 tps	1.0M	$1.25 / $4.25
Modalmodal	Healthy	100%	100%	100%	100%	2.63s	74.3s	38 tps	1.0M	$1.25 / $4.25
Nebiusnebius/fp4fp4	Healthy	100%	88.52%	100%	100%	1.20s	8.68s	95 tps	1.0M	$1.25 / $4.25
Togethertogether	Healthy	100%	94.52%	99.35%	99.35%	533ms	33.3s	73 tps	1.0M	$1.25 / $4.25

BaseTen100%
Healthy24h 100%
7d
100%
30d
100%
p50
527ms
p99
1.98s
Throughput
227 tps
Context
1.0M
$/Mtok
$1.25 / $4.25
baseten/fp4fp4
Fireworks100%
Healthy24h 86.63%
7d
87.59%
30d
87.59%
p50
533ms
p99
19.9s
Throughput
59 tps
Context
1.0M
$/Mtok
$1.25 / $4.25
fireworks
Modal100%
Healthy24h 100%
7d
100%
30d
100%
p50
2.63s
p99
74.3s
Throughput
38 tps
Context
1.0M
$/Mtok
$1.25 / $4.25
modal
Nebius100%
Healthy24h 88.52%
7d
100%
30d
100%
p50
1.20s
p99
8.68s
Throughput
95 tps
Context
1.0M
$/Mtok
$1.25 / $4.25
nebius/fp4fp4
Together100%
Healthy24h 94.52%
7d
99.35%
30d
99.35%
p50
533ms
p99
33.3s
Throughput
73 tps
Context
1.0M
$/Mtok
$1.25 / $4.25
together

Measured 3m ago. Latency and throughput are OpenRouter's rolling 30-minute windows.

History

Availability

Axis starts at 90% so small differences stay visible; it expands to 0 when an endpoint falls below.

Time to first token

Logarithmic axis — the fleet spans two orders of magnitude. P50 is OpenRouter's rolling 30-minute window, averaged over the hour.

Throughput

Median tokens per second.

Daily availability

One row per endpoint · one dot per day · last 90 days.

Jul

Aug

Sep

Oct

worst hour ≥ 95%90–95%< 90%no data

Colour by each endpoint's worst hour of each UTC day · 5 endpoints · 1 day with data, 2 endpoint-days below 90%.