Both the Opus 5.5 and Fable 5.1 models ported HAProxy from C to Rust; both passed most tests, but Opus 5.5 completed the process in 9.5 hours versus Fable 5.1's 12 hours, and resulted in 51% lower cost while Opus 5.5 was in daily use during the test period.
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Opus 5.5 faster and cheaper to port than Fable 5.1
Both the Opus 5.5 and Fable 5.1 models ported HAProxy from C to Rust; both passed most tests, but Opus 5.5 completed the process in 9.5 hours versus Fable 5.1's 12 hours, and resulted in 51% lower…
