Based on weekly OpenRouter usage tracked by AI Tier List, Z.ai: GLM 5.2 ranks #5 overall — ahead of OpenAI: GPT-5.5 at #14. Z.ai: GLM 5.2 is cheaper on input tokens at $0.93/1M vs $5/1M for OpenAI: GPT-5.5. OpenAI: GPT-5.5 offers the larger context window at 1.1M tokens.
| OpenAI: GPT-5.5 | Z.ai: GLM 5.2 | |
|---|---|---|
| Author | openai | z-ai |
| Input price (per 1M tokens) | $5 | $0.93 |
| Output price (per 1M tokens) | $30 | $3 |
| Context window | 1.1M | 1M |
| Input modalities | file, image, text | text |
| Output modalities | text | text |
| AA Intelligence | 54.8 | 51.1 |
| AA Coding | 74.9 | 68.8 |
| AA Agentic | 44.9 | 43.1 |
| Released | Apr 2026 | Jun 2026 |
| Task | OpenAI: GPT-5.5 | Z.ai: GLM 5.2 |
|---|---|---|
| Overall | #14 | #5 |
| Memory Extraction | — | #6 |
| Multi-step Planning | #7 | #4 |
| Tool Dispatch | — | #5 |
| Web Search | — | #6 |
| Agent Workflows | #9 | #5 |
Usage ranks are weekly data aggregated by OpenRouter. Prices are USD per 1M tokens.
| Debugging |
| — |
| #3 |
| DevOps Config | — | #4 |
| File Read/Write | — | #5 |
| Frontend UI | #5 | #6 |
| Code Implementation | — | #3 |
| Repo Analysis | — | #4 |
| Code Review & Security | #7 | #2 |
| Shell Execution | — | #4 |
| SQL & Database | — | #4 |
