GPT 5.1 Codex Max vs GPT 5.6 Sol
Extended-context coding model for large codebase operations.
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 5.1 Codex Max vs GPT 5.6 Sol▼
Which is better, GPT 5.1 Codex Max or GPT 5.6 Sol?
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Both GPT 5.1 Codex Max 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 5.1 Codex Max or GPT 5.6 Sol?
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GPT 5.1 Codex Max has a lower blended cost. GPT 5.1 Codex Max: $1.25 input / $10.00 output. GPT 5.6 Sol: $5.00 input / $30.00 output.
Which has a larger context window, GPT 5.1 Codex Max or GPT 5.6 Sol?
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GPT 5.6 Sol has a larger context window: GPT 5.1 Codex Max supports 400K tokens vs GPT 5.6 Sol at 1.1M tokens.
Do both GPT 5.1 Codex Max and GPT 5.6 Sol support vision?
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Yes, both GPT 5.1 Codex Max and GPT 5.6 Sol support vision/image input.
What are the key differences between GPT 5.1 Codex Max and GPT 5.6 Sol?
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Key differences: GPT 5.1 Codex Max 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 5.1 Codex Max and GPT 5.6 Sol for free on idapt.app to see which performs better for your specific needs.