OpenAI's GPT-5.6 flagship — built for complex reasoning, agentic coding, and long-running professional work.
Earlier Gemini 2.5 Pro preview release from May 2025.
No shared demos for these models yet.
No captured outputs for these models yet.
Both GPT 5.6 Sol and Gemini 2.5 Pro (05-06) 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.
Gemini 2.5 Pro (05-06) has a lower blended cost. GPT 5.6 Sol: $5.00 input / $30.00 output. Gemini 2.5 Pro (05-06): $1.25 input / $10.00 output.
GPT 5.6 Sol has a larger context window: GPT 5.6 Sol supports 1.1M tokens vs Gemini 2.5 Pro (05-06) at 1M tokens.
Yes, both GPT 5.6 Sol and Gemini 2.5 Pro (05-06) support vision/image input.
Key differences: Gemini 2.5 Pro (05-06) 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 Gemini 2.5 Pro (05-06) for free on idapt.app to see which performs better for your specific needs.