OpenAI's GPT-5.6 flagship — built for complex reasoning, agentic coding, and long-running professional work.
Fast variant of Seed 1.6 for low-latency applications.
No shared demos for these models yet.
No captured outputs for these models yet.
Both GPT 5.6 Sol and Seed 1.6 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.
Seed 1.6 Flash has a lower blended cost. GPT 5.6 Sol: $5.00 input / $30.00 output. Seed 1.6 Flash: $0.07 input / $0.30 output.
GPT 5.6 Sol has a larger context window: GPT 5.6 Sol supports 1.1M tokens vs Seed 1.6 Flash at 262K tokens.
Yes, both GPT 5.6 Sol and Seed 1.6 Flash support vision/image input.
Key differences: Seed 1.6 Flash 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 Sol and Seed 1.6 Flash for free on idapt.app to see which performs better for your specific needs.