OpenAI's GPT-5.6 flagship — built for complex reasoning, agentic coding, and long-running professional work.
Original DeepSeek V3 — the model that put DeepSeek on the map.
No shared demos for these models yet.
No captured outputs for these models yet.
Both GPT 5.6 Sol and DeepSeek V3 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 V3 has a lower blended cost. GPT 5.6 Sol: $5.00 input / $30.00 output. DeepSeek V3: $0.20 input / $0.80 output.
GPT 5.6 Sol has a larger context window: GPT 5.6 Sol supports 1.1M tokens vs DeepSeek V3 at 128K tokens.
GPT 5.6 Sol supports vision/image input, but DeepSeek V3 does not.
Key differences: DeepSeek V3 is significantly cheaper; only GPT 5.6 Sol supports vision input; only GPT 5.6 Sol offers extended reasoning mode. 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 Sol and DeepSeek V3 for free on idapt.app to see which performs better for your specific needs.