Verdict
GPT-5.6 Sol leads 17–0 across 17 shared benchmarks.
GLM-5.2 0 · GPT-5.6 Sol 17 · higher isn't always better — check the caveats below.
Reported scores — protocols may differ. How we compare
Reasoning: GPT-5.6 Sol leads 3–0 across 3 shared reasoning benchmarks (largest gap: SimpleQA Verified, 71.6 vs 38.1 — single evaluator).
Unknown: GPT-5.6 Sol leads 3–0 across 3 shared unknown benchmarks (largest gap: ProofBench, 83 vs 35 — single evaluator).
Coding: GPT-5.6 Sol leads 2–0 across 2 shared coding benchmarks (largest gap: DeepSWE, 72.67 vs 43.78 — single evaluator).
Math: GPT-5.6 Sol leads 2–0 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 82.93 vs 29.27 — single evaluator).
Vendor claims — compare against the measured scores above. A claim is what a developer says about its own model, not an independent measurement.
Coding
“Advanced Coding with Flexible Effort: Stronger coding capabilities with multiple thinking effort levels to balance performance and latency”
Context Handling
“We propose IndexShare, which reuses the same indexer across every four sparse attention layers, reducing per-token FLOPs by 2.9x at a 1M context length.”
General
“Pure Open: An MIT open-source license - no regional limits, technical access without borders”
No vendor claims on file for GPT-5.6 Sol.
GPT-5.6 Sol leads 17–0 across 17 shared benchmarks. GLM-5.2 leads 0 benchmarks and GPT-5.6 Sol leads 17. Higher isn't always better — see the integrity caveats on each benchmark.
GLM-5.2 and GPT-5.6 Sol have 17 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.
GPT-5.6 Sol leads reasoning 3–0. GPT-5.6 Sol leads unknown 3–0.