Z.ai: GLM 5.1
Z.ai: GLM 5.1 is z-ai's model. On the un-leaked meo benchmark it ranks #18 of 22 with 36.0% accuracy and an Effective Value (𝕍) of 0.0000 — earning a correct answer for about $0.1058 in 434s each.
as of 2026-06-08
Per-domain accuracy
Efficiency
- Cost per correct
- $0.1058
- Seconds per correct
- 434
- Tokens per correct
- 26,241
- Correct answers
- 43 / 151
- Total benchmark cost
- $4.55
- Avg tokens / item
- 7,473
Aggregated third-party benchmarks
Artificial Analysis (artificialanalysis.ai). Redistribution requires an AA commercial license.
Model details
- Lab
- z-ai
- Released
- 2026-04-07
- Weights
- Open
- Context
- 203K
- Max output
- —
- Knowledge cutoff
- —
- Price in
- $0.98/M
- Price out
- $3.08/M
- Modality
- text->text
Sources: openrouter · artificial_analysis · meo
FAQ
How accurate is Z.ai: GLM 5.1?
Z.ai: GLM 5.1 scores 36.0% overall on the meo benchmark (rank #18 of 22), an un-leaked private holdout graded objective-first.
What is Z.ai: GLM 5.1's Effective Value?
Its Effective Value (𝕍) is 0.0000 at N=10, ω=1, δ=1.5 — a fused metric of accuracy, speed, cost, and error-cascade. 𝕍 rankings shift with task depth.
How much does Z.ai: GLM 5.1 cost per correct answer?
About $0.1058 per correct answer (26,241 tokens, 434 seconds each) at benchmark-time pricing via OpenRouter.
Is Z.ai: GLM 5.1 open weights?
Yes — Z.ai: GLM 5.1 is released with open weights.