Z-Ai/GLM 5 vs Step 5 Preview
Z-Ai/GLM 5 is cheaper on output tokens, while Step 5 Preview offers a larger context window. Choose Z-Ai/GLM 5 or Step 5 Preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Z-Ai/GLM 5 | Step 5 Preview |
|---|---|---|
| Provider | Qiniu | StepFun |
| Input / 1M tokens | $0.58 | $1.00 |
| Output / 1M tokens | $2.61 | $2.70 |
| Context window | 200K | 1M |
| Parameters | — | — |
| Open weights | Yes | — |
| Released | Feb 2026 | — |
| LMArena (Chatbot Arena) Elo score | — | 1440 |
| LMArena WebDev Elo score | — | 1567 |
| LMArena Vision Elo score | — | 1265 |
FAQ
Is Z-Ai/GLM 5 or Step 5 Preview cheaper?
Z-Ai/GLM 5 is cheaper on output tokens ($2.61 vs $2.70 per 1M).
Which has the larger context window, Z-Ai/GLM 5 or Step 5 Preview?
Step 5 Preview has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.