GLM 4.7 Flash
GLM 4.7 Flash is the speed-optimized variant in Z.ai's GLM-4.7 generation, released N/A. It delivers faster inference for high-throughput workloads while retaining the coding, tool usage, and conversational improvements introduced in GLM-4.7.
import { streamText } from 'ai'
const result = streamText({ model: 'zai/glm-4.7-flash', prompt: 'Why is the sky blue?'})What To Consider When Choosing a Provider
Zero Data Retention
AI Gateway supports Zero Data Retention for this model via direct gateway requests (BYOK is not included). To configure this, check the documentation.Authentication
AI Gateway authenticates requests using an API key or OIDC token. You do not need to manage provider credentials directly.
GLM 4.7 Flash sits in the middle of the 4.7 generation. Test it against both GLM-4.7 (higher capability) and GLM-4.7-FlashX (higher speed) on your specific tasks to find the right tradeoff.
All GLM-4.7 variants share the same API. You can A/B test across tiers without changing your integration.
The reduced per-token cost makes GLM 4.7 Flash practical for high-volume deployments where GLM-4.7's per-request cost would be prohibitive.
When to Use GLM 4.7 Flash
Best For
High-volume coding assistance:
Fast response times improve developer productivity across many concurrent sessions
Real-time conversational applications:
The 4.7 generation's natural tone under strict latency thresholds
Production API backends:
High request volumes where cost per token directly impacts margins
Agentic pipelines:
Most steps need good capability at speed, with the option to route complex steps to the full GLM-4.7
Interactive prototyping and development:
Fast iteration cycles depend on quick model responses
Consider Alternatives When
Maximum complex-task capability:
The full GLM-4.7 provides the deepest reasoning and coding quality
Absolute fastest inference:
GLM-4.7-FlashX offers the lowest latency in the 4.7 generation
Vision capabilities needed:
Evaluate GLM-4.6V or GLM-4.5V for multimodal input
Advanced reasoning modes:
GLM-5 provides multiple thinking modes and an expanded reasoning architecture
Conclusion
GLM 4.7 Flash sits between the full GLM-4.7 and GLM-4.7-FlashX: fast enough for many production latency budgets, and more capable than FlashX on heavier coding and tool-use tasks. Switch between 4.7 tiers through AI Gateway by changing the model identifier.
FAQ
GLM 4.7 Flash shares the same foundational improvements (coding, tool usage, multi-step reasoning, natural tone) but is optimized for faster inference at lower cost. Peak capability on complex tasks will be lower than GLM-4.7.
GLM 4.7 Flash provides more capability with moderate speed optimization. GLM-4.7-FlashX is the fastest tier in the generation, trading more capability for the lowest possible latency.
Yes. All variants share the same API surface. Change the model identifier to switch between GLM-4.7, GLM-4.7-Flash, and GLM-4.7-FlashX.
200K tokens.
AI Gateway provides a unified API key. No separate Z.ai account is needed. Use the model identifier to route requests. BYOK is supported for direct provider accounts.
Yes. It inherits the frontend development improvements from GLM-4.7, though the full GLM-4.7 may produce slightly better results on complex UI generation tasks.
See the pricing section on this page for today's rates. AI Gateway exposes each provider's pricing for GLM 4.7 Flash.
