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GLM 5.3 FlashX vs Muse Spark 1.3

At a glance

Z.ai's high-speed variant of GLM 5.3 Flash, generating up to 200 tokens per second.

1.0M ctx$0.37/$1.25 per M

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

1.0M ctx$1.25/$4.25 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
Cheaper71%
Math
Competition Math—
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
Sources:Epoch AI·OpenRouter· as of 2026-10-02
Math
Competition Math99.2%
Specs
1.0M
Context
131K
Max output
Sep 2026
Released
1.0M
Context
256K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input70%$0.37/M tokens
Output71%$1.25/M tokens
Cache read40%$0.09/M tokens
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 5.3 FlashXGo to model
Chat with Muse Spark 1.3Go to model
Frequently Asked Questions: GLM 5.3 FlashX vs Muse Spark 1.3▼

Which is better, GLM 5.3 FlashX or Muse Spark 1.3?

▼

Both GLM 5.3 FlashX and Muse Spark 1.3 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 5.3 FlashX or Muse Spark 1.3?

▼

GLM 5.3 FlashX has a lower blended cost. GLM 5.3 FlashX: $0.37 input / $1.25 output. Muse Spark 1.3: $1.25 input / $4.25 output.

Which has a larger context window, GLM 5.3 FlashX or Muse Spark 1.3?

▼

GLM 5.3 FlashX has a larger context window: GLM 5.3 FlashX supports 1M tokens vs Muse Spark 1.3 at 1M tokens.

Do both GLM 5.3 FlashX and Muse Spark 1.3 support vision?

▼

Yes, both GLM 5.3 FlashX and Muse Spark 1.3 support vision/image input.

What are the key differences between GLM 5.3 FlashX and Muse Spark 1.3?

▼

Key differences: GLM 5.3 FlashX 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 GLM 5.3 FlashX and Muse Spark 1.3 for free on idapt.app to see which performs better for your specific needs.

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