OpenAI released GPT-6 Sol and GPT-6 Luna about 90 minutes after Anthropic announced Claude Opus 5.5. OpenAI says the new models cost less than its previous models. For therapists, the key question is not just the price, it is whether these tools can help with everyday work while keeping care safe and personal.
AI can help with writing and organizing tasks. For example, it can draft a simple explanation of anxiety, suggest questions for a group discussion, or prepare a first version of a between-session exercise. These are general descriptions, not guarantees. The best choice depends on the task and on whether the result is genuinely useful in your practice.
To see how they might fit into our work, we explored what each tool is suited for:
GPT-6 Sol: for more complex work
Think of Sol as the stronger professional option for tasks that need careful reasoning or several steps. It may help with summarizing research, opening and analyzing very long documents, reviewing regulations and recommendations, and turning information into practical materials or plans.
A therapist might use it to bring information together, plan a detailed workshop, or create a first draft of a training resource. OpenAI describes Sol as offering performance close to Astra at a lower cost, but its responses still need to be checked for accuracy and relevance to your clinical needs.
GPT-6 Luna: for quick, everyday tasks
Think of Luna as the fast and efficient option. It may be useful for focused tasks such as rewriting a paragraph in simpler language, translating text, drafting an email, summarizing notes, or generating ideas. It can also help with repetitive tasks and quick questions.
For example, a therapist could use Luna to find everyday information quickly, draft emails, translate text, or create therapeutic materials, such as making a handout easier to read or suggesting several ways to explain a coping skill. The therapist can then choose and edit the version that works best.
Sol and Luna at a glance
| Sol | Luna | |
| Best for | Complex or detailed tasks | Everyday and repeated tasks |
| Reasoning | Stronger for multi-step work | Good for focused requests |
| Speed | Fast | Very fast |
| Examples | Reviewing long documents, planning, research summaries | Rewriting, translation, emails, summaries, ideas |
| Cost | Higher than Luna | Lower |
A practical way to begin is to choose one small, low-risk task. You could ask the tool to simplify a handout or suggest different ways to explain a coping skill. Check that the result is accurate, clear, respectful, and suitable for the people you work with.
Protect client privacy: don’t enter names or identifying details unless your organization has approved the tool and its privacy protections. Use fictional or fully de-identified examples when testing AI. Then review the output for accuracy, respectful language, and cultural fit. AI may miss important details or make assumptions, so revise or discard anything that doesn’t fit the client or your professional judgment.
Responsible AI use depends not just on the tool, but on our intention and how we use it. We need to choose the model that best fits the task, whether we’re summarizing research, simplifying a handout, or drafting an email. Learning to make that choice is a skill we can develop, helping us get more useful responses while keeping professional judgment at the center.
GPT-6 Sol and Luna may offer therapists a quicker way to prepare useful materials and organize ideas. Their real value will depend on how carefully we use them. AI can support the work, but the therapist remains responsible for what is shared and how care is provided.