Model specification · Z.AI
GLM 5.1
z-ai/glm-5.1
GLM-5.1 delivers a major leap in coding capability, with particularly significant gains in handling long-horizon tasks. Unlike previous models built around minute-level interactions, GLM-5.1 can work independently and continuously on...
SpecificationsReported values
- Context window
- 205K
- Maximum output
- 128K
- Architecture
- text->text
- Tokenizer
- Other
- Knowledge cutoff
- —
- Moderated
- No
- Input modalities
- text
- Output modalities
- text
Full pricingUSD where reported
| Price | Standard |
|---|---|
| Input | $0.966 / M |
| Output | $3.04 / M |
Benchmark indexesReported indexes
- Intelligence
- 40.2
- Coding
- 55.8
- Agentic
- 29.9
- Design Arena Elo
- 1244
Example workload costsStandard pricing only
| Workload | Input / output | Cache share | Estimated cost |
|---|---|---|---|
| Quick check | 10K / 1K × 1 | 0% | $0.013 |
| Long analysis | 100K / 4K × 1 | 50% | $0.069 |
| Workday | 20K / 2K × 1,000 | 30% | $20.67 |
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