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OpenAI unveils GPT-5.6 family with Sol, Terra, and Luna models

By PulseAugur Editorial · [6 sources] ·

OpenAI has announced the GPT-5.6 family of models, including Sol, Terra, and Luna. GPT-5.6 Sol is positioned as their new flagship model, offering enhanced capabilities, particularly in cybersecurity and complex command-line workflows, setting new benchmarks on Terminal-Bench 2.1. Terra provides a balance of performance and cost-efficiency, while Luna is designed for high-volume, affordable tasks. Initially, GPT-5.6 Sol will be available in a limited preview to trusted partners via Codex and the API at the request of the U.S. government, with broader general availability planned for the coming weeks. AI

IMPACT Introduces a new generation of models with enhanced capabilities and cost-efficiency options, potentially setting new industry standards.

RANK_REASON Frontier-lab model release with system card

Read on X — OpenAI →

AI-generated summary · Google Gemini · from 6 sources. How we write summaries →

OpenAI unveils GPT-5.6 family with Sol, Terra, and Luna models

COVERAGE [6]

  1. X — OpenAI TIER_1 English(EN) · OpenAI ·

    GPT‑5.6 Sol launches with our most robust safety stack yet.

    GPT‑5.6 Sol launches with our most robust safety stack yet. We strengthened real-time protections against high-risk cyber activity and repeated misuse, then spent weeks hardening the system with human red teaming and over 700,000 A100-equivalent GPU hours of automated testing.

  2. X — OpenAI TIER_1 English(EN) · OpenAI ·

    GPT-5.6 Sol is our most capable model yet for cybersecurity.

    GPT-5.6 Sol is our most capable model yet for cybersecurity. It shifts the performance-efficiency frontier for long-horizon security tasks including vulnerability research and exploitation. https://t.co/UcDaUEPrn7

  3. X — OpenAI TIER_1 English(EN) · OpenAI ·

    GPT‑5.6 Sol sets a new state of the art on Terminal‑Bench 2.1, which tests complex command-line workflows requiring planning, iteration, and tool coordination.

    GPT‑5.6 Sol sets a new state of the art on Terminal‑Bench 2.1, which tests complex command-line workflows requiring planning, iteration, and tool coordination. https://t.co/gWA1pzpOmK

  4. X — OpenAI TIER_1 English(EN) · OpenAI ·

    Sol is our new flagship and a step function better than GPT-5.5.

    Sol is our new flagship and a step function better than GPT-5.5. Terra delivers performance competitive to GPT-5.5 at 2x lower cost. Luna is our most cost-efficient model, delivering strong capability at our lowest cost. Together, the GPT-5.6 family gives people and developers…

  5. X — OpenAI TIER_1 English(EN) · OpenAI ·

    Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and G

    Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work. https://t.co/OoM83SyISN

  6. X — OpenAI TIER_1 English(EN) · OpenAI ·

    We believe in broad access and plan to make GPT-5.6 Sol, Terra, and Luna generally available in the coming weeks.

    We believe in broad access and plan to make GPT-5.6 Sol, Terra, and Luna generally available in the coming weeks. For now, at the request of the U.S. government, we’re starting with a limited preview among a small group of trusted partners in Codex and the API.

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