GLM-5.3-Flash
Z.ai's natively multimodal coding model, tested anonymously as ox-alpha, pairing 320B total with 18B active parameters, MIT-licensed weights, and a 50% launch discount through Sep 9, 2026.
GLM-5.3-Flash is available on MiniRouter as . The model page has current pricing, provider routes and API setup.
About the model
- Architecture: 320B MoE · 18B active. Hybrid attention; the first natively multimodal GLM-5 model
- Context: 1M. 128K maximum output per Z.ai's docs
- Weights: Released. MIT license on Hugging Face
- Reasoning effort: low / high / max. Z.ai recommends max for coding
Publisher pricing
Pricing below comes from the linked publisher sources and does not represent a MiniRouter route or price.
Publisher-reported benchmarks
Results from the publisher’s announcement, grouped by unit.
| Benchmark | Reported result | Reported by | As of | Source |
|---|---|---|---|---|
| Terminal Bench 2.1 | 84.3 | Z.ai | Aug 26, 2026 | Announcement ↗ |
| DeepSWE v1.1 | 63.4 | Z.ai | Aug 26, 2026 | Announcement ↗ |
| Agents' Last Exam | 26.3 | Z.ai | Aug 26, 2026 | Announcement ↗ |
| AutomationBench v1.0.6 | 48.8 | Z.ai | Aug 26, 2026 | Announcement ↗ |
| Humanity's Last Exam · with tools | 55.3 | Z.ai | Aug 26, 2026 | Announcement ↗ |
| Benchmark | Reported result | Reported by | As of | Source |
|---|---|---|---|---|
| GDPval-AA v2 | 1,773 | Z.ai | Aug 26, 2026 | Announcement ↗ |
Z.ai says it tested the model anonymously as ox-alpha on OpenCode and OpenRouter before launch.
Z.ai published its benchmark charts as images; the values here are MiniRouter's transcription of those charts.
Z.ai reports the benchmark figures; MiniRouter has not reproduced them.
Independent measurements
Artificial Analysis evaluations of the first-party API.
GLM 5.3 Flash ranks #14 of 462 model families on their Intelligence Index.
- Intelligence Index
- 41.8
- Composite of their evaluations
- Coding Index
- 71.5
- Coding evaluations only
- Blended price
- $0.24
- USD per 1M tokens, 3:1 input to output, first-party list
- Output speed
- 89
- Median tokens per second
- First answer token
- 25s
- Median seconds, including reasoning
GLM 5.3 Flash on Artificial Analysis ↗
Source: Artificial Analysis ↗, read Sep 21, 2026. Measured on the model's first-party API, not a MiniRouter route.
Keep exploring
Compare published results in the model rankings and coding benchmarks, or read more model releases.
For MiniRouter product updates, visit the changelog.
Sources
- Read at Z.ai ↗
Z.ai announcement
Published Aug 26, 2026
- Read at Z.ai ↗
Z.ai pricing page
Published Aug 26, 2026
- Read at Artificial Analysis ↗
Artificial Analysis model page
Published Sep 21, 2026
Editorial reference revised 2026-10-23. Catalog status comes from the generated routing snapshot.