OpenAI introduces GPT-5.6 models with enhanced efficiency and cybersecurity features

Jul 9, 2026

AI Summary

OpenAI has launched its new GPT-5.6 family of models, which includes Sol, Terra, and Luna, each designed for different user needs. The models promise improved efficiency, particularly in coding tasks, and enhanced cybersecurity capabilities, positioning OpenAI competitively against rivals like Anthropic.

OpenAI unveiled its GPT-5.6 family of models, consisting of three variants: Sol, Terra, and Luna.
Sol is described as the workhorse model, while Terra serves as an intermediate option and Luna is budget-friendly.
The new models are designed to enhance capabilities in enterprise work, coding, and scientific research.
CEO Sam Altman stated that Sol is 54% more token efficient for AI coding tasks compared to previous versions.
GPT-5.6 is noted as OpenAI's strongest cybersecurity model, capable of performing defensive activities like threat modeling and code review.
The rollout of GPT-5.6 has faced scrutiny, with concerns about potential misuse, reminiscent of previous regulatory discussions during the Trump administration.
OpenAI also launched ChatGPT Work, a tool aimed at assisting enterprise teams with clerical tasks across various platforms.
The introduction of GPT-5.6 comes amid similar product launches from competitors SpaceXAI and Meta.
OpenAI claims its models outperform those of Anthropic, citing the Artificial Analysis Coding Agent Index for comparison.
Sol is claimed to set a new standard in coding efficiency, outperforming Anthropic’s Fable 5 model in various metrics.
Pricing for the models is set at $5 input / $30 output for Sol, $2.50 input / $15 output for Terra, and $1 input / $6 output for Luna.

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OpenAI introduces GPT-5.6 models with enhanced efficiency and cybersecurity features

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