Unverified50% confidenceBenchmarkExact time
In a software engineering test on a real codebase, GPT-6 Sol nearly matched the top score of Cloud Fable 5.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/29/2026
First Seen
Valid until: 12/28/2026
Sources
Related Entities
Related Claims
UnverifiedGPT-5.6 Soul version is more accurate and stable than Terra in handling stubborn bugs, problem localization, and complex code debugging.75% 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.75% similarUnverifiedThe author considers GPT-5.6 a solid incremental upgrade rather than a paradigm shift, with Sol coming very close to Fable but still slightly behind overall.73% similarUnverifiedGPT-5.6 Sol is explicitly positioned as a model in the same tier as Fable/Mythos.73% similarUnverifiedThe GPT-5.6 SOUL version outperforms the benchmark model Fable 5 on multiple tests and is more competitively priced.73% similar
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