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Muse Spark 1.3 vs Kimi K3

At a glance

Meta's latest multimodal reasoning model for long-running agentic, multi-agent, and coding workflows.

1.0M ctx$1.25/$4.25 per M

MoonshotAI's 2.8T-parameter flagship for complex coding, knowledge work, and long-horizon agent runs.

1.0M ctx$3.00/$15.00 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper67%
Reasoning & Knowledge
Graduate Science—Expert-Level—
Agentic
Terminal Tasks—
Reasoning
CodingInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Reasoning & Knowledge
Graduate Science93.5%Expert-Level43.5%
Agentic
Terminal Tasks88.3%
Specs
1.0M
Context
256K
Max output
Sep 2026
Released
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input58%$1.25/M tokens
Output72%$4.25/M tokens
Cache read50%$0.15/M tokens
Web search$0.003/search
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
Chat with Muse Spark 1.3Go to model
Chat with Kimi K3Go to model
Frequently Asked Questions: Muse Spark 1.3 vs Kimi K3▼

Which is better, Muse Spark 1.3 or Kimi K3?

▼

Both Muse Spark 1.3 and Kimi K3 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Muse Spark 1.3 or Kimi K3?

▼

Muse Spark 1.3 has a lower blended cost. Muse Spark 1.3: $1.25 input / $4.25 output. Kimi K3: $3.00 input / $15.00 output.

Which has a larger context window, Muse Spark 1.3 or Kimi K3?

▼

Muse Spark 1.3 has a larger context window: Muse Spark 1.3 supports 1M tokens vs Kimi K3 at 1M tokens.

Do both Muse Spark 1.3 and Kimi K3 support vision?

▼

Yes, both Muse Spark 1.3 and Kimi K3 support vision/image input.

What are the key differences between Muse Spark 1.3 and Kimi K3?

▼

Key differences: Muse Spark 1.3 is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Muse Spark 1.3 and Kimi K3 for free on idapt.app to see which performs better for your specific needs.

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