Expired60% confidenceBenchmarkExact time
GPT-5.6's clear weaknesses are concentrated in front-end visual tasks, with Sol scoring only six or seven points on projects such as Three.js and SVG, while Fable 5 can score nine or even full marks.
2
Sources
60%
Confidence
Medium-term (~90 days)
Relevance
7/10/2026
First Seen
Valid until: 10/8/2026(expired)
Sources
GPT-5.6 Three-Model Benchmark: How Close Are Sol/Terra/Luna to Claude?
bilibili烟神殿副殿主7/9/2026
Related Claims
UnverifiedOn frontend and visual tasks (Three.js animations, SVG graphics), GPT-5.6 models generally only scored six to seven points, while competitor Fable 5 consistently reached nine to ten points.85% similarPartially VerifiedAll three GPT-5.6 models achieved a perfect score of 10 on the long-horizon agent fine-tuning task, while GPT-5.5 and Opus 4.7 could only score two or three points on that task.77% similarUnverifiedOn difficult math problems, both SOL and TERRA achieved perfect scores of 10, and on the adaptive fine-tuning task all three GPT-5.6 models achieved perfect scores, whereas the previous GPT-5.5 and Opus 4.7 could only score two to three points on the same task.74% similarUnverifiedGPT-6 Sol exhibited lid clipping and component interpenetration issues in the 3D contact lens case task, with Opus ultimately scoring 10 points and Sol scoring 6 points.72% similar
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