01What GPT 5.6 Sol Is and How It Works

GPT 5.6 Sol is the flagship model in OpenAI's new GPT 5.6 family, designed for complex, multi-step tasks. It's not a single model but part of a three-model release: Sol, Terra, and Luna. Sol is the heavy hitter, Terra is the everyday workhorse, and Luna is the fast, lean, high-volume engine.

Sol works by handling agentic tasks—things like planning, editing, running tests, and iterating without you holding its hand. On Terminal Bench 2.1, a benchmark for complex agentic work, Sol scored 88.8%. That's slightly ahead of Claude Mithos 5, which scored 88.0%.

Terra matched Claude Fable 5 at 84.3% on the same benchmark.

This three-model approach changes how you use AI. Instead of picking one tool for everything, you pick the right model for the job. Sol for heavy thinking, Terra for daily execution, and Luna for fast automation.

02Main Features of GPT 5.6 Family

GPT 5.6 comes with three models, each with a specific purpose. Here's what each one offers:

  • Sol: The flagship model for complex, agentic tasks. It scores 88.8% on Terminal Bench 2.1, beating Claude Mithos 5's 88.0%.
  • Terra: The mid-tier workhorse for everyday tasks like writing emails and newsletters. It matches Claude Fable 5 at 84.3%.
  • Luna: The fast, lean engine for high-volume tasks like lead qualification and answering FAQs at scale.

Together, they cover everything a business needs. But there's a big catch: the models are in limited preview. Only about 20 organizations have access, and OpenAI cleared the list with the US government before releasing.

This is because Sol's cyber security capabilities are so strong that there were real discussions in Washington about how and when to release it.

Broader access is coming in the next few weeks, but for now, you can't use it yet.

03How to Get Started with GPT 5.6 Sol

Getting started with GPT 5.6 Sol isn't possible yet for most people, but you can prepare. Here's what to do:

  1. Wait for the broader release. OpenAI says access is coming in the next few weeks.
  2. Build your workflows now using existing models like GPT 5.5 or Claude Sonnet 4.6, so you're ready to switch when Sol drops.
  3. Identify which tasks in your business need heavy thinking (Sol), daily execution (Terra), or high-volume automation (Luna).
  4. Train yourself and your team on how to use these models effectively.
  5. Sign up for communities like the AI Profit Boardroom to get templates and roadmap for implementing GPT 5.6 when it's live.

The prep work you do now—building workflows and getting clear on what tasks need what level of intelligence—pays off the moment access opens up.

04How to Use GPT 5.6 Sol in Business Workflows

In this episode, Julian demonstrates three workflows using the GPT 5.6 family. First, for strategy and growth planning, use Sol. Prompt it with your goals, like: 'Identify the top three growth opportunities in the next 90 days based on member retention, new member acquisition, and content consumption patterns.

Give me a prioritized action plan.' Sol gives a full strategic audit, ranked priorities, and a 90-day roadmap.

Second, for weekly content like newsletters, use Terra. Example prompt: 'Write a weekly email update for AI Profit Boardroom members. This week's theme, the GPT 5.6 Sol release and how members should prepare their AI workflows.

Tone: direct, practical, conversational. Include one action step.' Terra produces a clean, ready-to-send email in under 60 seconds.

Third, for lead qualification, use Luna. Set it up as an assistant that asks two questions: 'What kind of business do you run?' and 'What's the main thing you want to automate with AI?' Then give personalized recommendations. Luna handles hundreds of conversations at once, filters serious prospects, and warms leads before a human gets involved.

05Results and Comparisons in the Episode

The episode shows real benchmark numbers from the June 26, 2026 model. Sol scored 88.8% on Terminal Bench 2.1, while Claude Mithos 5 scored 88.0%. That's a tight gap, but Sol is ahead.

Terra matched Claude Fable 5 at 84.3%. For coding, Claude Sonnet 4.6 still holds up well, scoring 79.6% on SWE-Bench verified. But in agentic tasks, GPT 5.5 was already ahead of Sonnet 4.6—81.5 versus 65.1.

Sol is a full generation ahead.

However, the catch is that almost nobody can use GPT 5.6 yet. Only around 20 organizations have access, and OpenAI coordinated with the US government before releasing. This is unusual and shows how capable Sol is, especially in cyber security.

In the community, members are already building multimodal pipelines using GPT 5.5 and Sonnet 4.6 together, which maps perfectly onto the GPT 5.6 family.

06Tips, Limits, and Mistakes to Avoid

Here are key tips from the episode:

  • Don't treat AI as a single tool. Use the three-tier system: Sol for heavy tasks, Terra for daily work, Luna for high-volume automation.
  • Prepare now. Build workflows and get clear on what tasks need what level of intelligence before GPT 5.6 is widely available.
  • Be aware of access limits. You can't get GPT 5.6 yet, so don't plan around it until it's live.
  • Route work appropriately: using Sol for simple emails wastes its power; using Luna for strategic planning may not work.

Avoid the mistake of waiting until release to start. The businesses that move fast are those that prep workflows in advance. Also, don't ignore the security implications—Sol's cyber capabilities are strong enough that the US government had to approve its release.

07Who GPT 5.6 Is For and Why It Matters

GPT 5.6 is for businesses that want to automate complex tasks without compromising on quality. It matters because AI is no longer a single tool—it's a system. You need a flagship model for your hardest thinking, a mid-tier model for daily execution, and a lean model for high-volume automation.

The businesses that figure out how to route the right work to the right model will move faster. This is a shift in how AI is built and sold. It's not just a model; it's an infrastructure decision.

Julian mentions that inside the AI Profit Boardroom, they're mapping GPT 5.6 Sol into member workflows right now. The sooner you understand how to use it, the sooner you stop getting outpaced by people who did.