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Mercury vs GLM 5.3 Flash

At a glance

Inception AI's flagship general-purpose model.

128K ctx

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

1.0M ctx$0.07/$0.25 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
No benchmarks available

This model hasn't been benchmarked yet.

Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Specs
128K
Context
16K
Max output
—
Released
1.0M
Context
131K
Max output
Aug 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Pricing not available
Live pricing, shown before you run
Input$0.07/M tokens
Output$0.25/M tokens
Cache read$0.01/M tokens
Chat with MercuryGo to model
Chat with GLM 5.3 FlashGo to model
Frequently Asked Questions: Mercury vs GLM 5.3 Flash▼

Which is better, Mercury or GLM 5.3 Flash?

▼

Both Mercury and GLM 5.3 Flash 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 has a larger context window, Mercury or GLM 5.3 Flash?

▼

GLM 5.3 Flash has a larger context window: Mercury supports 128K tokens vs GLM 5.3 Flash at 1M tokens.

Do both Mercury and GLM 5.3 Flash support vision?

▼

GLM 5.3 Flash supports vision/image input, but Mercury does not.

What are the key differences between Mercury and GLM 5.3 Flash?

▼

Key differences: only GLM 5.3 Flash supports vision input; only GLM 5.3 Flash offers extended reasoning mode. 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 Mercury and GLM 5.3 Flash for free on idapt.app to see which performs better for your specific needs.

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