Terra
The balanced model in the GPT-5.6 series, designed for everyday work scenarios. It strikes a balance between capability and cost, positioning it as a general-purpose option within the GPT-5.6 family.
Timeline (last 90 days)
Compared with the previous generation Terra, Sol's input price is the same while its output price is cheaper.
GPT-6 Sol achieves a slight lead over the previous generation Terra under the Max tier of the AA comprehensive capability leaderboard, but still trails Astra by a noticeable margin.
The balanced model (Terra) is oriented toward everyday work scenarios and offers well-rounded capabilities.
Luna and Terra are not widely known mainstream model product names at the time of writing.
The video author states that Jev's quality is sufficient to match models such as Luna, Terra, and Sonnet 5, but at only a fraction of their price.
According to leaked information, GPT-6 may adopt a four-tier naming system, ranked from highest to lowest in terms of intelligence level and price: Astra, Sol, Terra, and Luna.
The Terra and Sol models showed the most merciful behavior in HarvestBench tests (lowest kill rates), while GPT-4o-mini showed the most ruthless behavior (highest kill rate)
In Codex, Sol and Terra can work in parallel and communicate with each other, while Luna can operate as a sub-agent within a multi-agent system.
All Facts (5)
The balanced model (Terra) is oriented toward everyday work scenarios and offers well-rounded capabilities.
60%UnverifiedGPT-6 Sol achieves a slight lead over the previous generation Terra under the Max tier of the AA comprehensive capability leaderboard, but still trails Astra by a noticeable margin.
50%UnverifiedIn Codex, Sol and Terra can work in parallel and communicate with each other, while Luna can operate as a sub-agent within a multi-agent system.
50%Unverified应根据任务复杂度分配模型，将轻量任务交给Luna、日常任务交给Terra、复杂任务交给SOL，以节省高级模型额度
50%UnverifiedAccording to leaked information, GPT-6 may adopt a four-tier naming system, ranked from highest to lowest in terms of intelligence level and price: Astra, Sol, Terra, and Luna.
50%