Real data comparison
Z.ai: GLM 5.2 (batch) vs OpenAI: GPT-5.6 Luna (batch)
On quality, Z.ai: GLM 5.2 (batch) leads (52.6 vs 52.3). On price, Z.ai: GLM 5.2 (batch) is cheaper ($0.11 vs $0.22 per 1M). In real production usage, Z.ai: GLM 5.2 (batch) is used more (rank #4 vs #9 of 291). Across 18 real task categories where both models have classified traffic, OpenAI: GPT-5.6 Luna (batch) handles more of the traffic in 12 of them.
- Z.ai: GLM 5.2 (batch)
- OpenAI: GPT-5.6 Luna (batch)
Head-to-head by real task
Z.ai: GLM 5.2 (batch) leads 6 of 18 shared task categories by real classified traffic share; OpenAI: GPT-5.6 Luna (batch) leads 12. Not a benchmark score - this is what developers actually route to each model for, per OpenRouter's task classification.
| Task | Z.ai: GLM 5.2 (batch) | OpenAI: GPT-5.6 Luna (batch) |
|---|---|---|
| Code Review | 23.8% | 7.2% |
| Security Audit | 11.0% | 3.1% |
| Debugging | 10.6% | 6.9% |
| Math | 3.9% | 7.5% |
| Tool Dispatch | 2.8% | 5.8% |
| Multi-step Planning | 3.9% | 6.2% |
| Code Generation | 7.2% | 9.4% |
| File I/O | 5.0% | 7.2% |
| Shell Execution | 5.8% | 3.7% |
| DevOps & Config | 6.2% | 8.1% |
| Web Search | 2.9% | 4.8% |
| Research & Reports | 3.5% | 4.8% |
| DevOps | 4.4% | 5.3% |
| Workflow Execution | 4.9% | 5.7% |
| Frontend & UI | 9.7% | 10.1% |
| SQL & Database | 6.6% | 6.2% |
| Q&A & Knowledge | 3.6% | 3.9% |
| Repo Scanning | 6.6% | 6.5% |
Usage share over time
- Z.ai: GLM 5.2 (batch)
- OpenAI: GPT-5.6 Luna (batch)
Frequently asked questions
Z.ai: GLM 5.2 (batch) vs OpenAI: GPT-5.6 Luna (batch): which is better quality?
Z.ai: GLM 5.2 (batch) scores higher on Artificial Analysis's Intelligence Index (52.6 vs 52.3).
Z.ai: GLM 5.2 (batch) vs OpenAI: GPT-5.6 Luna (batch): which is cheaper?
Z.ai: GLM 5.2 (batch) is cheaper at $0.11/1M vs $0.22/1M.
Z.ai: GLM 5.2 (batch) vs OpenAI: GPT-5.6 Luna (batch): which is used more?
Z.ai: GLM 5.2 (batch) has higher real OpenRouter usage share (rank #4 vs #9 of 291).
Z.ai: GLM 5.2 (batch) vs OpenAI: GPT-5.6 Luna (batch): which wins more real-world task categories?
OpenAI: GPT-5.6 Luna (batch) handles more traffic in 12 of 18 shared task categories where both models have classified OpenRouter usage.
Source: OpenRouter (openrouter.ai/rankings), as of August 9, 2026.
Benchmark scores: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings).
Methodology: smophy.ai/benchmark/methodology
Token counts originate from each provider's own tokenizer and are not directly comparable across providers.