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Kimi K3 vs Muse Spark 1.1

At a glance
MoonshotAIKimi K3

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
MetaMuse Spark 1.1

Meta's multimodal reasoning model built for agentic work and real-world coding.

1.0M ctx$1.25/$4.25 per M
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
MoonshotAIKimi K3
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%
MetaMuse Spark 1.1
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Cheaper
Reasoning & Knowledge
Graduate Science—Expert-Level52.2%
Agentic
Terminal Tasks80.0%
Specs
MoonshotAIKimi K3
1.0M
Context
16K
Max output
Jul 2026
Released
MetaMuse Spark 1.1
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
MoonshotAIKimi K3
Vision
Audio
Reasoning
MetaMuse Spark 1.1
Vision
Audio
Reasoning
Pricing
MoonshotAIKimi K3
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
MetaMuse Spark 1.1
Live pricing, shown before you run
Input$1.25/M tokens
Output$4.25/M tokens
Cache read$0.15/M tokens
Web search$0.003/search
Chat with Kimi K3Go to model
Chat with Muse Spark 1.1Go to model
Frequently Asked Questions: Kimi K3 vs Muse Spark 1.1▼

Which is better, Kimi K3 or Muse Spark 1.1?

▼

Both Kimi K3 and Muse Spark 1.1 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, Kimi K3 or Muse Spark 1.1?

▼

Muse Spark 1.1 has a lower blended cost. Kimi K3: $3.00 input / $15.00 output. Muse Spark 1.1: $1.25 input / $4.25 output.

Which has a larger context window, Kimi K3 or Muse Spark 1.1?

▼

Kimi K3 has a larger context window: Kimi K3 supports 1M tokens vs Muse Spark 1.1 at 1M tokens.

Do both Kimi K3 and Muse Spark 1.1 support vision?

▼

Yes, both Kimi K3 and Muse Spark 1.1 support vision/image input.

What are the key differences between Kimi K3 and Muse Spark 1.1?

▼

Key differences: Muse Spark 1.1 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 Kimi K3 and Muse Spark 1.1 for free on idapt.app to see which performs better for your specific needs.

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