GLM-5.2 vs GPT-5.6 Sol
GLM-5.2 (Z.ai (Zhipu AI)) and GPT-5.6 Sol (OpenAI) compared on benchmarks, pricing, context window, and use-case rankings.
- GPT-5.6 Sol leads on overall intelligence (ECI 162 vs 152).
- GLM-5.2 is cheaper on input tokens — $0.55 vs $5.00 per 1M.
- GPT-5.6 Sol has a larger context window (1.1M vs 1M tokens).
- GPT-5.6 Sol ranks higher for coding (96th vs 87th percentile).
| Attribute | GLM-5.2 | GPT-5.6 Sol |
|---|---|---|
| Scores | ||
| Intelligence (ECI) | 152 | 162 |
| Coding | 87 | 96 |
| Math | 37 | 97 |
| Reasoning & Knowledge | 66 | 96 |
| Agentic & Tools | 93 | 44 |
| Specifications | ||
| Developer | Z.ai (Zhipu AI) | OpenAI |
| Family | — | GPT |
| Released | Jun 16, 2026 | Jul 9, 2026 |
| Parameters | — | — |
| Availability | Open weights (unrestricted) | API access |
| Context window | 1M | 1.1M |
| Price — $/M input | $0.55 | $5.00 |
| Price — $/M output | $1.72 | $30.00 |
| Inputs | text | file, image, text |
| Outputs | text | text |
| Benchmarks | ||
| AIME 2024/2025 | 86% | 100% |
| APEX | 36% | — |
| ARC-AGI | 77% | 98% |
| ARC-AGI-2 | 23% | 93% |
| GPQA Diamond | 92% | 93% |
| Humanity's Last Exam | 40% | 47% |
| SciCode | 51% | 56% |
| SimpleQA Verified | 38% | 72% |
| SWE-bench Verified | 79% | — |
| WebDev Arena | 1593 | — |
| WeirdML | 70% | 89% |
| τ²-bench | 99% | 85% |
| SimpleBench | — | 72% |
Use-case scores are 0–100 percentile composites across each area’s benchmarks, ranked against every model from the past year. Highlighted cells lead each row. Open a model for the full picture.
Frequently asked questions
Is GLM-5.2 better than GPT-5.6 Sol?
On Epoch AI's Capabilities Index, GPT-5.6 Sol scores higher (162) than GLM-5.2 (152). The right pick depends on your task — compare their coding, math, and reasoning scores in the table above.
Which is cheaper, GLM-5.2 or GPT-5.6 Sol?
GLM-5.2 is cheaper on input tokens at $0.55 per million, versus $5.00 (representative OpenRouter pricing).
Which has a larger context window, GLM-5.2 or GPT-5.6 Sol?
GPT-5.6 Sol supports up to 1.1M tokens, compared with 1M for the other.
Which is better for coding, GLM-5.2 or GPT-5.6 Sol?
Across coding benchmarks like SWE-bench Verified and Terminal-Bench, GPT-5.6 Sol ranks higher — 96th vs 87th percentile among the models tracked on Model Beat.
Want a different match-up? Open the compare tool to add or swap models.
More comparisons
Benchmarks & model data from Epoch AI (CC BY); pricing & specs from OpenRouter. ECI = Epoch Capabilities Index.