OpenAI: GPT-5.6 Solopenai
Bottom Line
OpenAI: GPT-5.6 Sol: $4.00/1M input, $20.00/1M output, 1.1M context, CPS grade B. GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
API Pricing (per 1M tokens)
| Input | $4.00 |
| Output | $20.00 |
| Cache Read | — |
| Cache Write | — |
| Blended (3:1) | $8.00 |
Specs & Performance
| Context Length | 1.1M |
| Max Output | 128K |
| Intelligence | 47 |
| Coding | 77 |
| Math | — |
| Speed | — |
| TTFT | — |
| CPS Grade | B |
| Input / Output Modalities | file, image, text → text |
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FAQ
How much does the OpenAI: GPT-5.6 Sol API cost?
OpenAI: GPT-5.6 Sol costs $4.00/1M input tokens and $20.00/1M output tokens. Blended cost at a 3:1 ratio is about $8.00/1M tokens.
What is the context window of OpenAI: GPT-5.6 Sol?
OpenAI: GPT-5.6 Sol supports a 1.1M token context window with up to 128K output tokens.
Is OpenAI: GPT-5.6 Sol worth it?
OpenAI: GPT-5.6 Sol has a CPS grade of B (score 64), intelligence index 47, coding index 77. Use the compare page to benchmark against rivals.