GLM-5.1 vs GPT-5.6 Sol

Verdict

GPT-5.6 Sol leads 8–0 across 8 shared benchmarks.

GLM-5.1 0 · GPT-5.6 Sol 8 · higher isn't always better — check the caveats below.

Per-benchmark head-to-head

Reported scores — protocols may differ. How we compare

Sort

GLM-5.1GPT-5.6 Sol

14.77
AChess Puzzles
62.12
4.57
ACritPt
32.3
86.53
BGPQA diamond
91.33
93.33
AOTIS Mock AIME 2024-2025
100
22.22
AProofBench
83
46.12
ASimpleBench
66.04
37.29
ASimpleQA Verified
71.6
57.1
AWeirdML
89.43

Capabilities

Reasoning

Reasoning: GPT-5.6 Sol leads 3–0 across 3 shared reasoning benchmarks (largest gap: SimpleQA Verified, 71.6 vs 37.29 — single evaluator).

4 reproduced2 unverified

A higher score does not always mean a better model. Each number is task performance under a disclosed harness. Of the 16 measurements across 8 shared benchmarks, 16 single-evaluator or undisclosed-protocol reports; 50% are independently reproduced. GLM-5.1 pricing is cross-check disputed — weigh cost claims with the same caution as benchmark wins. Check any benchmark's integrity grade before reading a win as decisive.

Frequently asked questions

GPT-5.6 Sol leads 8–0 across 8 shared benchmarks. GLM-5.1 leads 0 benchmarks and GPT-5.6 Sol leads 8. Higher isn't always better — see the integrity caveats on each benchmark.

GLM-5.1 and GPT-5.6 Sol have 8 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.

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These models

Same tier

GLM-5.1 vs …

GPT-5.6 Sol vs …

Frequently asked questions

GPT-5.6 Sol leads 8–0 across 8 shared benchmarks. GLM-5.1 leads 0 benchmarks and GPT-5.6 Sol leads 8. Higher isn't always better — see the integrity caveats on each benchmark.

GLM-5.1 and GPT-5.6 Sol have 8 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.