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GPT-5.6 SolAPI
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series.
Prices update automatically — checked daily against provider list prices.
- $8 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 15% of the 226 commercial models tracked here
- 79 of 101 OpenAI models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for GPT-5.6 Sol, measured by Artificial Analysis. Higher is better. Measurement mode: Xhigh.
About this model
GPT-5.6 Sol is a commercial AI model by OpenAI. The specifications below are tracked automatically: pricing is refreshed daily from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is GPT-5.6 Sol?
GPT-5.6 Sol is an AI language model from OpenAI. It is a proprietary model, available through an API.
Is GPT-5.6 Sol free?
GPT-5.6 Sol is not free: it costs $4 per million input tokens and $20 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is GPT-5.6 Sol good at?
Independent benchmarks from Artificial Analysis give it GPQA 93.1%, Humanity's Last Exam 47.3%, Long Context Reasoning 82.3%, SciCode 57.1%, IFBench 71%, τ²-Bench 84.8%, τ-Bench Banking 38.1%, Terminal-Bench 89.5%, Terminal-Bench Hard 61.4%. It is particularly used for code generation.