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Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Muse Spark 1.3MetaRemove
  2. Muse Spark OpenMetaRemove
  3. Kimi K3.1 ProMoonShot AIRemove
  4. Perceptron Mk1.5PerceptronRemove

4 is the maximum. Remove one to add another.

muse-spark-1.3 vs muse-spark-open vs kimi-k3.1-pro vs perceptron-mk1.5
AttributeMuse Spark 1.3muse-spark-1.3Muse Spark Openmuse-spark-openKimi K3.1 Prokimi-k3.1-proPerceptron Mk1.5perceptron-mk1.5
Pricing
Input$1.25 / 1M$1.25 / 1M$2.00 / 1M$0.15 / 1M
Output$4.25 / 1M$4.25 / 1M$10.00 / 1M$1.50 / 1M
Cache Write (5m)$1.25 / 1M$1.25 / 1M$2.00 / 1M$0.15 / 1M
Cache Write (1h)$1.25 / 1M$1.25 / 1M$2.00 / 1M$0.15 / 1M
Cache Read$1.25 / 1M$1.25 / 1M$2.00 / 1M$0.15 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M1M1M36.9K
Max outputN/AN/AN/AN/A
Capabilities
VisionYesYesYesNo
Function CallingYesYesYesNo
JSON ModeYesYesYesNo
StreamingYesYesYesYes
Catalogue
ProviderMetaMetaMoonShot AIPerceptron
Categorychatchatchatchat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released———2026-09-25
Description
SummaryMuse Spark 1.3 is Meta's multimodal reasoning model designed for long-running agentic, multi-agent, and coding workflows. It maintains context and information across extended tasks, enabling reliable execution in complex, multi-step environments. The model is optimized to resolve conflicting information, seek clarification or confirmation when necessary, and execute concisely, making it well suited for autonomous agents, collaborative multi-agent systems, and long-horizon software engineering workflows.Muse Spark Open is an open-weight, coding-optimized model designed for agentic software engineering workflows. It delivers strong first-attempt accuracy, reliable tool calling, and deep codebase understanding, enabling effective development across real-world repositories. Optimized for autonomous coding agents, complex code navigation, and tool-driven development, Muse Spark Open is well suited for software engineering automation, debugging, code generation, and multi-step coding workflows where accuracy and reliable execution are essential.Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model, building on Kimi K3 with enhanced post-training for advanced reasoning and autonomous task execution. It features a 1M-token context window and native image and video understanding, enabling complex, long-context multimodal workflows. Optimized for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, Kimi K3.1 Pro is well suited for autonomous software engineering, multimodal analysis, and complex professional workflows that require sustained reasoning and reliable execution.Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token.