Meta · Released Oct 15, 2026

Muse Spark Open

Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt accuracy, reliable tool calling, and deep codebase understanding across the repos developers...

ReasoningOpen weightsVision
Released
Oct 15 2026
Context window
1M 944K out
Input / 1M tokens
$1.25
Output / 1M tokens
$4.25

Where to run it

19 providers compared

Cheapest: Makora, Modal, Together +15 more at $1.25 / $4.25 per 1M input / output tokens — 20% less than the priciest option.

ProviderInputOutputCache readContextMax outputUptimevs. best
MakoraFP4 $1.25 $4.25 $0.151M131K100%24h Cheapest
Modal $1.25 $4.25 $0.151M262K100%24h Cheapest
Together $1.25 $4.25 $0.151M944K100%24h Cheapest
Fireworks $1.25 $4.25 $0.151M944K100%24h Cheapest
BaseTenFP4 $1.25 $4.25 $0.151M944K100%24h Cheapest
NebiusFP4 $1.25 $4.25 $0.151M944K97%24h Cheapest
NanoGPT $1.25 $4.25 $0.151M131K— Cheapest
Cloudflare AI Gateway $1.25 $4.25 $0.151.04M131K— Cheapest
Kilo Gateway $1.25 $4.25 $0.151M944K— Cheapest
Vercel AI Gateway $1.25 $4.25 $0.151M1M— Cheapest
Nebius Token Factory $1.25 $4.25 $1.251M1M— Cheapest
Together AI $1.25 $4.25 $0.151M131K— Cheapest
Requesty $1.25 $4.25 $0.151M131K— Cheapest
Fireworks AI $1.25 $4.25 $0.151M131K— Cheapest
Prime Inference $1.25 $4.25 —1M944K— Cheapest
Ollama Cloud $1.25 $4.25 $0.151M131K— Cheapest
Merge Gateway $1.25 $4.25 $0.151M262K— Cheapest
Eden AI $1.25 $4.25 $1.251M131K— Cheapest
Venice AI $1.56 $5.31 $0.191M131K— +25%

Benchmarks

Benchmark scores

No benchmark scores yet — Epoch AI hasn't evaluated Muse Spark Open. Scores appear here automatically once it does.

Specs

Details

Model ID
meta/muse-spark-open
Developer
Meta
Release date
Oct 15, 2026 ·
Context window
1,048,576 tokens
Max output
943,718 tokens
API price
$1.25 / $4.25 per 1M input / output tokens
Providers
19
Input types
text, image, video, file, audio
Reasoning
Yes
Tool calling
Yes
Open weights
Yes
Free tier
No

Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.