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OpenAI launches GPT-5.6 with tiered Sol, Terra, and Luna models

By PulseAugur Editorial · [1 sources] ·

OpenAI has launched GPT-5.6, a new model family that deviates from its previous single-model approach by offering three distinct tiers: Sol, Terra, and Luna. Sol is designed for complex reasoning and coding tasks, positioned as a cybersecurity model and powering ChatGPT Work. Terra offers capabilities comparable to GPT-5.5 at a reduced cost, serving as a general-purpose option. Luna is the fastest and most economical tier, suitable for high-volume, less complex tasks. The tiered pricing structure aims to provide users with more cost-effective choices based on their specific workload needs. AI

IMPACT Introduces a tiered pricing and capability model, potentially lowering costs for general use cases and increasing competition in specialized coding tasks.

RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

OpenAI launches GPT-5.6 with tiered Sol, Terra, and Luna models

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Significant
Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
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model release, product
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High
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63 days old
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COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Amaresh Pelleti ·

    GPT-5.6 Explained: Sol, Terra, and Luna Pricing

    <blockquote> <p>Originally published on <a href="https://devtoolhub.com/gpt-5-6-explained/" rel="noopener noreferrer">DevToolHub</a>.</p> </blockquote> <p>GPT-5.6 launched publicly on July 9, 2026, after a limited preview to trusted partners on June 26. It ships as three separate…

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