GPT 5.4 Pro vs GPT 5.6 Sol
OpenAI's most advanced reasoning model, built on GPT 5.4's unified architecture.
OpenAI's GPT-5.6 flagship — built for complex reasoning, agentic coding, and long-running professional work.
No captured outputs for these models yet.
Frequently Asked Questions: GPT 5.4 Pro vs GPT 5.6 Sol▼
Which is better, GPT 5.4 Pro or GPT 5.6 Sol?
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Both GPT 5.4 Pro and GPT 5.6 Sol 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.
Which is cheaper, GPT 5.4 Pro or GPT 5.6 Sol?
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GPT 5.6 Sol has a lower blended cost. GPT 5.4 Pro: $30.00 input / $180.00 output. GPT 5.6 Sol: $5.00 input / $30.00 output.
Which has a larger context window, GPT 5.4 Pro or GPT 5.6 Sol?
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GPT 5.4 Pro has a larger context window: GPT 5.4 Pro supports 1.1M tokens vs GPT 5.6 Sol at 1.1M tokens.
Do both GPT 5.4 Pro and GPT 5.6 Sol support vision?
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Yes, both GPT 5.4 Pro and GPT 5.6 Sol support vision/image input.
What are the key differences between GPT 5.4 Pro and GPT 5.6 Sol?
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Key differences: GPT 5.6 Sol is significantly cheaper. Compare full specs on this page.
Which model should I choose for my use case?
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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 5.4 Pro and GPT 5.6 Sol for free on idapt.app to see which performs better for your specific needs.