Expired60% confidenceFactExact time
Sol is more efficient than GPT-5.5, but the token efficiency of Terra and Luna has actually declined.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/20/2026
First Seen
Valid until: 10/18/2026(expired)
Sources
Related Claims
UnverifiedThe company states that Sol consumes fewer tokens than GPT-5.5 when completing similar tasks.81% similarVerifiedThe three GPT-5.6 models are positioned as follows: Sol is the flagship performance model, Terra balances performance and cost, and Luna is the most economical option.79% similarUnverifiedGPT-5.6 Sol achieves a significant price reduction while improving capabilities, realizing simultaneous improvement in performance and reduction in price.79% similarUnverifiedGPT-5.6's naming convention shifts from generation-number designations to capability-tier designations: Sol is the flagship top-tier model, Terra targets everyday high-frequency work with performance matching the previous-generation 5.5 but at a lower price, and Luna emphasizes speed and cost savings.78% similarVerifiedSOL's benchmark score is nearly double that of the previous generation GPT-5.5, representing a generational leap, but still trails Fable 5 overall.77% similar
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