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GLM 5.3 Flash vs Grok Build 0.1

At a glance

Z.ai's efficient multimodal model for fast coding and long-horizon agent tasks.

1.0M ctx$0.07/$0.25 per M

xAI's agentic build model for autonomous software engineering.

256K ctx$1.00/$2.00 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
Cheaper91%
Coding
Real-World Coding—
Reasoning
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-06-15
Coding
Real-World Coding70.8%
Specs
1.0M
Context
131K
Max output
Aug 2026
Released
256K
Context
16K
Max output
May 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input93%$0.07/M tokens
Output88%$0.25/M tokens
Cache read93%$0.01/M tokens
Live pricing, shown before you run
Input$1.00/M tokens
Output$2.00/M tokens
Cache read$0.20/M tokens
Web search$0.005/search
Chat with GLM 5.3 FlashGo to model
Chat with Grok Build 0.1Go to model
Frequently Asked Questions: GLM 5.3 Flash vs Grok Build 0.1▼

Which is better, GLM 5.3 Flash or Grok Build 0.1?

▼

Both GLM 5.3 Flash and Grok Build 0.1 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 5.3 Flash or Grok Build 0.1?

▼

GLM 5.3 Flash has a lower blended cost. GLM 5.3 Flash: $0.07 input / $0.25 output. Grok Build 0.1: $1.00 input / $2.00 output.

Which has a larger context window, GLM 5.3 Flash or Grok Build 0.1?

▼

GLM 5.3 Flash has a larger context window: GLM 5.3 Flash supports 1M tokens vs Grok Build 0.1 at 256K tokens.

Do both GLM 5.3 Flash and Grok Build 0.1 support vision?

▼

Yes, both GLM 5.3 Flash and Grok Build 0.1 support vision/image input.

What are the key differences between GLM 5.3 Flash and Grok Build 0.1?

▼

Key differences: GLM 5.3 Flash 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 Flash and Grok Build 0.1 for free on idapt.app to see which performs better for your specific needs.

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