OpenAI's fastest, most affordable GPT-5.6 tier for high-volume, latency-sensitive work.
Experimental vision-enabled DeepSeek V4 Flash with image understanding added on top of the 0731 snapshot.
No shared demos for these models yet.
No captured outputs for these models yet.
Both GPT 5.6 Luna and DeepSeek V4 Flash Vision Exp 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.
DeepSeek V4 Flash Vision Exp has a lower blended cost. GPT 5.6 Luna: $1.00 input / $6.00 output. DeepSeek V4 Flash Vision Exp: $0.22 input / $0.66 output.
GPT 5.6 Luna has a larger context window: GPT 5.6 Luna supports 1.1M tokens vs DeepSeek V4 Flash Vision Exp at 1M tokens.
Yes, both GPT 5.6 Luna and DeepSeek V4 Flash Vision Exp support vision/image input.
Key differences: DeepSeek V4 Flash Vision Exp is significantly cheaper. 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 GPT 5.6 Luna and DeepSeek V4 Flash Vision Exp for free on idapt.app to see which performs better for your specific needs.