Zhipu AIGLM 5.3 FlashX
GLM 5.3 FlashX is a Zhipu AI open-weights reasoning model, released 18 Sept 2026. It is not yet ranked: no independent benchmark results so far, only pricing and metadata. At $0.590 per million tokens blended it is mid-priced. Output speed of 91 tokens per second puts it faster than most, with a first token in 2.2 s.
- Blended price
- $0.590/M
- $0.370 in · $1.25 out
- Output speed
- 91 tok/s
- OpenRouter traffic, 7-day median; not yet measured by Artificial Analysis
- First answer
- 2.16 s
- Context
- 1M
- Released
- 18 Sept 2026
Versions
Zhipu AI has shipped 2 models under this name. Each is ranked on its own results; a newer version often has fewer results so far, which holds its index nearer the average until more arrive.
| Model | Released | Index | Rank |
|---|---|---|---|
| NewGLM 5.3 FlashXthis page | 18 Sept 2026 | – | – |
| GLM-4.7-FlashX | 19 Jan 2026 | – | – |
No independent quality benchmark results yet — only pricing and metadata.
Where to run it
Every provider serving this model through OpenRouter, with throughput and first-token latency measured on live traffic over the last 30 minutes and each provider’s own price. Purple marks the best in each column.
| Provider | Speed | First token | Input $/M | Output $/M | Context | Quantisation |
|---|---|---|---|---|---|---|
| Z.ai | 100 tok/s | 2.03 s | $0.370 | $1.25 | 1.0M | fp8 |
What a task costs
Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache at $0.075 per 1M. Reasoning tokens are not modelled.
| Workload | Tokens in / out | Cost | With caching | Time |
|---|---|---|---|---|
| Chat reply | 400 / 300 | $0.0005 | $0.0004 | 5.5 s |
| Summarise a 30-page report | 12,000 / 600 | $0.0052 | $0.0025 | 8.8 s |
| Code edit | 6,000 / 1,500 | $0.0041 | $0.0028 | 18.7 s |
| Agentic coding session | 60,000 / 4,000 | $0.027 | $0.014 | 46.4 s |
| Structured extraction | 2,000 / 200 | $0.0010 | $0.0005 | 4.4 s |
See also
Data as of 20 Sept 2026. Compare with another model.
Cite as: BenchLeader, “GLM 5.3 FlashX: benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/glm-5-3-flashx, data as of 20 Sept 2026.