Verdict
GPT-5 leads 10–3 across 13 shared benchmarks.
GPT-5 10 · Inkling 3 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Reasoning: Evenly split 2–2 across 4 shared reasoning benchmarks (largest gap: ARC-AGI, 79.5 vs 65.67 — single evaluator).
Unknown: GPT-5 leads 3–0 across 3 shared unknown benchmarks (largest gap: ProofBench, 18 vs 0 — single evaluator).
Math: GPT-5 leads 2–0 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 21.95 vs 4.88 — single evaluator).
GPT-5 leads 10–3 across 13 shared benchmarks. GPT-5 leads 10 benchmarks and Inkling leads 3. Higher isn't always better — see the integrity caveats on each benchmark.
GPT-5 and Inkling have 13 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
GPT-5 leads unknown 3–0. GPT-5 leads math 2–0.