GPT-5.6 Family Benchmarks and Pricing Compared

haider1 · x · 2026-07-10

A user claims OpenAI's GPT-5.6 family performs exceptionally well on the DeepSwe benchmark, sharing score and unit cost comparisons across multiple models.

The post contrasts the pricing and scores of sol, fable 5, terra, and luna, arguing that fable 5 will lose its competitive edge once it goes API-only.

Related event: GPT-5.6 Tops DeepSWE Leaderboard with Superior Cost-Efficiency(11 posts)→

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