$ diff gpt-5-6-sol glm-5-2
GPT-5.6 Sol vs GLM-5.2
OpenAI and Z.ai, side by side. Every value below is the one recorded on the model’s own wiki page, with its citation — nothing is estimated.
OpenAIGPT-5.6 Sol
- context
- 1.1M
- weights
- closed
- $/M in
- $5
- $/M out
- $30
- context
- 1M
- weights
- open
- $/M in
- —
- $/M out
- —
What actually differs
- Context window
- GPT-5.6 Sol takes 1.1M against 1M — modestly more room in a single request.
- Weights
- GLM-5.2 publishes weights (MIT (unrestricted, "no regional limits")); GPT-5.6 Sol is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
- Recency
- GPT-5.6 Sol shipped 26 days after GLM-5.2 (2026-07-09 vs 2026-06-13).
Full spec
| Attribute | GPT-5.6 Sol | GLM-5.2 |
|---|---|---|
| Developer | OpenAI | Z.ai |
| Released | 2026-07-09 | 2026-06-13 |
| Context window | 1.05M tokens | 1,000,000 tokens |
| Pricing | $5/M input · $30/M output (Sol; family tiers below) | not publicly listed as of 2026-07-13 (~1/6th GPT-5.5 API cost per VentureBeat) |
| License | proprietary (API-only; no weight release) | MIT (unrestricted, "no regional limits") |
| Availability | ChatGPT (subscription), API | GLM Coding Plan (highest subscription tier), standalone API, open weights, NVIDIA NIM hosted |
Values come from GPT-5.6 Sol and GLM-5.2, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing. How these pages are produced.