Zhipu BigModel GLM Flash
Zhipu AI's BigModel open platform exposes permanently free GLM 'Flash' models (GLM-4.5-Flash, GLM-4.7-Flash, GLM-4.6V-Flash vision) with no credit card required.
- Concurrency
- 1
- Card required
- No
Zhipu BigModel GLM Flash scores 4.8/10 for free value in LLM. The main constraint: Permanently free Flash-series models (text and vision) with no card; limited to 1 concurrent request per model on the free tier. Paid GLM models also available.
Free value score
4.8 / 10Show the math
Key metrics
Models
8 free · 39 totalLimits may be stale — last re-verified outside this section's freshness window.
| Model | Family | AA | Access |
|---|---|---|---|
| GLM-4.7-Flash | GLM | 33.8 | free |
| CogVideoX-Flash | GLM | — | free |
| CogView-3-Flash | GLM | — | free |
| GLM-4-Flash-250414 | GLM | — | free |
| GLM-4.1V-Thinking-Flash | GLM | — | free |
| GLM-4.5-Flash | GLM | — | free |
| GLM-4.6V-Flash | GLM | — | free |
| GLM-4V-Flash | GLM | — | free |
| GLM-5.2 | GLM | 51.1 | paid |
| GLM-5.1 | GLM | 40.2 | paid |
| GLM-5 | GLM | 39.5 | paid |
| GLM-5-Turbo | GLM | 38.1 | paid |
| GLM-5V-Turbo | GLM | 34.5 | paid |
| GLM-4.7 | GLM | 33.8 | paid |
| GLM-4.7-FlashX | GLM | 33.8 | paid |
| GLM-4.6 | GLM | 23 | paid |
| GLM-4.5-Air | GLM | 16.5 | paid |
| CharGLM-4 | GLM | — | paid |
| CodeGeeX-4 | GLM | — | paid |
| CogVideoX-3 | GLM | — | paid |
| CogView-4 | GLM | — | paid |
| Embedding-2 | GLM | — | paid |
| Embedding-3 | GLM | — | paid |
| GLM-4-FlashX-250414 | GLM | — | paid |
| GLM-4-Long | GLM | — | paid |
| GLM-4-Voice | GLM | — | paid |
| GLM-4.1V-Thinking-FlashX | GLM | — | paid |
| GLM-4.5 | GLM | — | paid |
| GLM-4.5-AirX | GLM | — | paid |
| GLM-4.5V | GLM | — | paid |
| GLM-4.6V | GLM | — | paid |
| GLM-ASR-2512 | GLM | — | paid |
| GLM-Image | GLM | — | paid |
| GLM-Realtime | GLM | — | paid |
| GLM-TTS | GLM | — | paid |
| GLM-TTS-Clone | GLM | — | paid |
| Rerank | GLM | — | paid |
| Vidu 2 | Other | — | paid |
| Vidu Q1 | Other | — | paid |
What you get
Permanent free tier (not a finite trial) for GLM Flash models
Includes a free vision model (GLM-4.6V-Flash)
No credit card required
First-party from Zhipu AI (open.bigmodel.cn)
Gotchas
- Primarily China-region platform
The open.bigmodel.cn platform is primarily aimed at China-region developers; non-China users may face slower latency, Chinese-language documentation, and occasional regional access friction.
Sources
-
"GLM-4.7-Flash | Free | Free | Free | Free"
https://docs.z.ai/guides/overview/pricing -
"GLM-4.7-Flash (Reasoning) scores 23 on the Artificial Analysis Intelligence Index, placing it well above average among comparable models (averaging 9)."
https://artificialanalysis.ai/models/glm-4-7-flash -
"The free tier has one catch: 1 concurrency. One request at a time. If you need parallel requests or higher throughput, you pay for FlashX"
https://pub.towardsai.net/glm-4-7-flash-z-ais-free-coding-model-and-what-the-benchmarks-say-da04bff51d47 -
"GLM-4.7-Flash is a 30B-A3B MoE model. As the strongest model in the 30B class, GLM-4.7-Flash offers a new option for lightweight deployment"
https://www.zhipuai.cn/en/news/148
Alternatives
Same category · similar quota
Cloud-hosted open models at NATIVE weights (GLM 5.2 1M-ctx, Kimi K2.7 Code, DeepSeek V4 Pro) with a free tier in the $0 plan; Pro $20/mo (50x usage, 3 concurrent), Max $100/mo (5x Pro, 10 concurrent); zero data retention.
