Last refreshed 2026-08-24. Next refresh: weekly.
Why use GLM-5.3 on OpenRouter?
OpenRouter offers GLM-5.3 with pay-as-you-go pricing at $1.40/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare GLM-5.3 across 2 providers to find the best fit for your use caseInput / 1M
$1.40
Output / 1M
$4.40
Cache
read $0.26
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: z-ai/glm-5.3Model ID
z-ai/glm-5.3Request example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
z-ai/glm-5.3.Gotchas
- Use provider model ID "z-ai/glm-5.3", not the LLMReference slug "glm-5.3".
Compare GLM-5.3 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Z.ai | $1.40 | $4.40 |
| OpenRouter | $1.40 | $4.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $1.40 |
| Output tokens | $4.40 |
Capabilities
ReasoningJSON / Tool useStructured OutputsPrompt Caching
About GLM-5.3
GLM-5.3 is Z.ai's August 2026 coding-first post-training release on the same GLM-5.2 base model, focused on complex software engineering, long-horizon agentic coding, and emergent cybersecurity evaluation. It is available through the GLM Coding Plan and Z.ai API; open weights are scheduled after safety hardening. Official API model ID: glm-5.3.
Get Started
Model Specs
Released2026-08-14
Context1m