Z.ai · Released Sep 23, 2026
GLM 5.3 Prime
GLM-5.3-Prime is the high-speed variant of Z.ai's GLM-5.3, inheriting its full capabilities while delivering 1.5–2× the output throughput through inference acceleration. It supports text input and output with a 1M-token...
- Released
- Sep 23 2026
- Context window
- 1M 131K out
- Input / 1M tokens
- $2.80
- Output / 1M tokens
- $8.80
Where to run it
2 providers compared
All 2 paid providers charge the same: $2.80 / $8.80 per 1M input / output tokens.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| Alibaba | $2.80 | $8.80 | $0.56 | 1M | 131K | 99.6%24h | Cheapest |
| Kilo Gateway | $2.80 | $8.80 | $0.56 | 1M | 131K | — | Cheapest |
Benchmarks
Benchmark scores
No benchmark scores yet — Epoch AI hasn't evaluated GLM 5.3 Prime. Scores appear here automatically once it does.
Specs
Details
- Model ID
z-ai/glm-5.3-prime- Developer
- Z.ai
- Release date
- Sep 23, 2026 ·
- Context window
- 1,000,000 tokens
- Max output
- 131,072 tokens
- API price
- $2.80 / $8.80 per 1M input / output tokens
- Providers
- 2
- Input types
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date and prices from OpenRouter's catalog; providers from OpenRouter and models.dev. Buying directly from a provider can cost a little differently. Speed, latency and uptime are measured on OpenRouter only; 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.