Z.ai · Released Jul 25, 2025
GLM 4.5
GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly...
- Released
- Jul 25 2025
- Context window
- 131K 98K out
- Input / 1M tokens
- $0.60
- Output / 1M tokens
- $2.20
Where to run it
Providers
Only Z.AI serves GLM 4.5 on OpenRouter right now.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| Z.AIFP8 | $0.60 | $2.20 | $0.11 | 131K | 98K | 100%24h | Cheapest |
Value
Price vs. performance
GLM 4.5 Other Z.ai Other labs Value frontier · Lech Mazur Writing vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.
Benchmarks
2 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| Lech Mazur WritingWriting & content · Short stories weaving 10 required elements, judged 0–10 | 7.34/10 | #12of 13 | GPT-58.60/10 |
| Humanity's Last ExamReasoning & knowledge · Expert questions across 100+ subjects | 8.3% | #22of 23 | GPT-6 Astra54.8% |
Specs
Details
- Model ID
z-ai/glm-4.5- Developer
- Z.ai
- Release date
- Jul 25, 2025 ·
- Context window
- 131,072 tokens
- Max output
- 98,304 tokens
- API price
- $0.60 / $2.20 per 1M input / output tokens
- Providers
- 1
- Input types
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- Yes
- Free tier
- No
Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.