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GLM 4.5 Air vs Muse Spark 1.1

At a glance
Zhipu AIGLM 4.5 Air

Lightweight GLM 4.5 variant for fast, cost-efficient inference.

131K ctx$0.13/$0.85 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
Zhipu AIGLM 4.5 Air
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Reasoning & Knowledge
Expert-Level8.1%
Agentic
Terminal Tasks—
MetaMuse Spark 1.1
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Reasoning & Knowledge
Expert-Level52.2%
Agentic
Terminal Tasks80.0%
Specs
Zhipu AIGLM 4.5 Air
131K
Context
98K
Max output
Jul 2025
Released
MetaMuse Spark 1.1
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
Zhipu AIGLM 4.5 Air
Vision
Audio
Reasoning
MetaMuse Spark 1.1
Vision
Audio
Reasoning
Pricing
Zhipu AIGLM 4.5 Air
Live pricing, shown before you run
Input$0.13/M tokens
Output$0.85/M tokens
Cache read$0.02/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 GLM 4.5 AirGo to model
Chat with Muse Spark 1.1Go to model
Frequently Asked Questions: GLM 4.5 Air vs Muse Spark 1.1▼

Which is better, GLM 4.5 Air or Muse Spark 1.1?

▼

Both GLM 4.5 Air 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, GLM 4.5 Air or Muse Spark 1.1?

▼

GLM 4.5 Air has a lower blended cost. GLM 4.5 Air: $0.13 input / $0.85 output. Muse Spark 1.1: $1.25 input / $4.25 output.

Which has a larger context window, GLM 4.5 Air or Muse Spark 1.1?

▼

Muse Spark 1.1 has a larger context window: GLM 4.5 Air supports 131K tokens vs Muse Spark 1.1 at 1M tokens.

Do both GLM 4.5 Air and Muse Spark 1.1 support vision?

▼

Muse Spark 1.1 supports vision/image input, but GLM 4.5 Air does not.

What are the key differences between GLM 4.5 Air and Muse Spark 1.1?

▼

Key differences: GLM 4.5 Air is significantly cheaper; only Muse Spark 1.1 supports vision input. 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 GLM 4.5 Air and Muse Spark 1.1 for free on idapt.app to see which performs better for your specific needs.

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