OpenAIPaidOperational

GPT 5.6 Sol Xhigh

API model name: gpt-5.6-sol-xhigh

GPT 5.6 Sol Xhigh is OpenAI's chat model, served on the Api.Airforce unified API. Capabilities include Reasoning. It is priced at $2.07 per million input tokens and $12.01 per million output tokens. That is below the provider's $5.00 official input rate. Access it through the OpenAI-compatible API with one key, alongside 100+ other models on Api.Airforce.

Pricing

Input / 1M tokens
$2.07
Output / 1M tokens
$12.01
Cache read / 1M tokens
$0.30
Cache write / 1M tokens
$2.66
Official input rate
$5.00
Official output rate
$30.00

Api.Airforce price vs. the provider's official rate.-59%

Specifications

Provider
OpenAI
Type
chat model

Capabilities

Reasoning

Benchmarks

Independent evaluations and measured speed from Artificial Analysis.

Measured atSame model, different reasoning effort.
Intelligence Index
60.9/100
Coding Index
77.4/100
GPQA Diamond94%
Humanity's Last Exam50%
SciCode56%
τ²-bench85%
τ-bench Banking44%
Terminal-Bench Hard66%
Output speed84.2 tok/s

GPT-5.6 Sol (max) · 41.9–60.9

Source: Benchmark data by Artificial Analysis (artificialanalysis.ai)

What is GPT 5.6 Sol Xhigh used for?

  • Chatbots & assistants — conversational AI, drafting, summarizing and Q&A.
  • Complex reasoning — math, coding and step-by-step problem solving.

GPT 5.6 Sol Xhigh vs. similar models

ModelIntelligenceContextInput / 1MOutput / 1M
GPT 5.6 Sol Xhigh60.9$2.07$12.01
Babbage 002$0.34$0.34
Chatgpt 4o Latest$2.75$14.50
Codex Auto Review$0.33$1.99

Prices are Api.Airforce pay-as-you-go rates per 1M tokens. Context is the maximum input length.

Related models

GPT 5.6 Sol Xhigh — frequently asked questions

How much does GPT 5.6 Sol Xhigh cost?
GPT 5.6 Sol Xhigh is billed pay-as-you-go at $2.07 per 1M input tokens and $12.01 per 1M output tokens. There is no subscription — you only pay for what you use.
What can GPT 5.6 Sol Xhigh do?
GPT 5.6 Sol Xhigh supports Reasoning.
Is GPT 5.6 Sol Xhigh free to use?
GPT 5.6 Sol Xhigh is a paid, pay-as-you-go model — no subscription, you are only charged for usage.
How do I use GPT 5.6 Sol Xhigh via the API?
GPT 5.6 Sol Xhigh is OpenAI-compatible. Point any OpenAI SDK at https://api.airforce/v1 and pass the model ID gpt-5.6-sol-xhigh with your Api.Airforce API key.
Who makes GPT 5.6 Sol Xhigh?
GPT 5.6 Sol Xhigh is OpenAI's chat model, served through the unified Api.Airforce gateway alongside 100+ other models.