OpenAI has unveiled its GPT-5.6 series, a family of three new artificial intelligence models named Sol, Terra, and Luna — but due to an executive order from the Trump administration, the public will have to wait. As of June 26, 2026, access is limited to roughly 20 trusted partner organizations while OpenAI works toward a broader rollout in the coming weeks.
Key Takeaways
- Three models: Sol (flagship), Terra (balanced everyday), and Luna (fast and affordable)
- Access: Currently limited to ~20 partner organizations; wider release in ChatGPT, Codex, and the API coming "soon"
- Reason for restricted launch: Trump administration executive order from June 2, 2026 requiring AI model benchmarking before public release
- API pricing (Sol): $5 per million input tokens (≈ ₱307) / $30 per million output tokens (≈ ₱1,840)
- OpenAI's position: Disagrees with the restriction becoming a permanent default, calls it a "short-term step"
The Three Models Explained
GPT-5.6 Sol is OpenAI's most capable model to date. Sol brings agentic improvements — the ability to chain actions and complete multi-step tasks — with enhanced performance in coding, biology, and cybersecurity use cases. A new "ultra" mode deploys sub-agents for complex work, while a new "max" reasoning effort level lets the model think longer before responding. OpenAI describes Sol as launching with its "most robust safety stack to date," with strengthened protections against high-risk requests, sensitive cyber tasks, and repeated misuse patterns.
GPT-5.6 Terra is positioned as the balanced everyday model. It delivers performance comparable to GPT-5.5 but at half the price — making it the practical choice for developers building production applications where cost matters.
GPT-5.6 Luna is the fastest and most affordable model in the family, aimed at lightweight tasks and high-volume use cases where response speed and cost are the primary constraints.
API Pricing
For developers and businesses accessing the models via OpenAI's API:
| Model | Input (per 1M tokens) | Output (per 1M tokens) |
|---|
| Sol | $5 (≈ ₱307) | $30 (≈ ₱1,840) |
| Terra | $2.50 (≈ ₱153) | $15 (≈ ₱920) |
| Luna | $1 (≈ ₱61) | $6 (≈ ₱368) |
Why Is Access Restricted?
The restricted launch stems from a June 2, 2026 executive order signed by President Donald Trump directing U.S. federal agencies to develop a process for benchmarking and assessing new AI models before public release. Under this process, OpenAI shared GPT-5.6's release plans with the U.S. government before making them available to a small group of trusted partners.
This is not the first time the administration has intervened: OpenAI notes that Anthropic was also required to pull back access to its Claude Fable 5 and Mythos 5 models, even after Anthropic had adhered to a voluntary review process and incorporated government feedback.
OpenAI accepted the restriction but was frank about its disagreement: "We don't believe this kind of government access process should become the long-term default. It keeps the best tools from users, developers, enterprises, cyber defenders, and global partners who need them. We are taking this short-term step because we believe it is the strongest path to broader availability in the coming weeks."
Safety Improvements in Sol
Sol's safety stack is described as the most comprehensive OpenAI has deployed. Engineers spent "multiple weeks finding weaknesses, pressure-testing" the system and hardening it against real-world attack scenarios. The model is specifically designed to assist with legitimate defensive security work — helping users find and fix vulnerabilities — while limiting end-to-end offensive capabilities.
When Will the Public Get Access?
OpenAI says GPT-5.6 will become available in ChatGPT, Codex, and the standard API "in the coming weeks." No specific date has been given. The models are currently accessible to a limited set of partner organizations and enterprises through the API and Codex.
For those building AI-powered applications, this launch follows a broader industry trend of AI models gaining native offline capability. Earlier this week, Adobe brought offline generative AI to Photoshop and five other Creative Cloud apps, underscoring how AI capabilities are being woven deeper into everyday workflows — with or without cloud connectivity.
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