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Muse Spark 1.3

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Muse Spark 1.3 is a reasoning model from Meta and an update to Muse Spark 1.2, with improved performance on agentic and coding tasks. It accepts text, image, video and PDF input and returns text, with a 1,048,576-token context window and adjustable reasoning effort. It is trained for longer-horizon work, follows long instructions more reliably, asks clarifying questions, confirms consequential actions, and is more resistant to prompt injection.

Modalities

In / out price

$0.875 / $2.975per 1M

Cached price

$0.105per 1M

Context

1M

Max output

131K

Providers

1 route

Compare providers by price, privacy, and speed.

Surplus Intelligence
Anonymous$0.875$2.975$0.1051M131K——

Privacy

1 / 4

Anonymous routing

Anonymous tier

  1. Anonymous
  2. Private
  3. TEE
  4. E2EE

Your identity is hidden from the inference provider. The inference provider can see prompt content; zero retention is not guaranteed. Learn more

Features

5
Streaming
Tool calling
Vision
Reasoning
Prompt caching

Uptime

FAQ

Common questions about Muse Spark 1.3.