Open-source 1.6T-parameter MoE with 49B active, built for advanced reasoning and long-horizon agents.
Z.ai's efficient multimodal model for fast coding and long-horizon agent tasks.
No shared demos for these models yet.
No captured outputs for these models yet.
Both DeepSeek V4 Pro 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.
GLM 5.3 Flash has a lower blended cost. DeepSeek V4 Pro: $0.43 input / $0.87 output. GLM 5.3 Flash: $0.07 input / $0.25 output.
DeepSeek V4 Pro has a larger context window: DeepSeek V4 Pro supports 1M tokens vs GLM 5.3 Flash at 1M tokens.
GLM 5.3 Flash supports vision/image input, but DeepSeek V4 Pro does not.
Key differences: GLM 5.3 Flash is significantly cheaper; only GLM 5.3 Flash supports vision input. Compare full specs on this page.
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 DeepSeek V4 Pro and GLM 5.3 Flash for free on idapt.app to see which performs better for your specific needs.