OpenRouter testTestable with your OpenRouter key
TestableExact capability metadata is available. CLSSAI can prepare the Text chat request without guessing the model contract.
- Evidence
- Exact ID z-ai/glm-5.3 · /chat/completions
- Mapped mode
- Text chat
Z.ai: GLM 5.3
z-ai/glm-5.3GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...
Modalities
Text → Text
Input / Output Price$0.90 / $2.86From · per 1M tokens · see provider prices
Context1.31Mtokens · maximum across providers
ReleasedAug 18, 2026OpenRouter public metadata
Availability & data sources Listed in CLSSAI · 31 reference endpoints
ACCESS
Where this model works
OpenRouter testing and CLSSAI API routing are independent decisions with separate sources.
CLSSAI APICallable through CLSSAI API
CallableThe exact model ID is listed in the current CLSSAI public directory. This proves current route eligibility, not a completed inference for every mode.
- Evidence
- Exact ID z-ai/glm-5.3 is directory-listed
Text test status
The request contract and frontend path are ready. A real OpenRouter output has not yet been recorded for this exact model and mode.
- Request contract
- Build verified
/chat/completions · Schema tests · 2026-08-05 - Frontend path
- Available
Text form · 2026-08-05 - Real model output
- Not yet verified
No keyed OpenRouter smoke record
Providers
Compare published prices and endpoint capabilities. Select a provider for context limits, caching prices and supported parameters.
| $0.9 | $3 | $0.15 | -- | -- | 28.5% | |
| $0.9 | $3 | $0.15 | -- | -- | 93.2% | |
| $0.91 | $2.86 | $0.169 | -- | -- | 94.0% | |
| $0.936 | $3.17 | $0.187 | -- | -- | 99.47% | |
| $0.95 | $4.4 | $0.19 | -- | -- | 98.4% | |
| $1.03 | $3.48 | $0.205 | -- | -- | 95.3% | |
| $1.05 | $3.3 | $0.195 | -- | -- | 99.96% | |
| $1.05 | $3.3 | $0.195 | -- | -- | -- | |
| $1.07 | $3.37 | $0.176 | -- | -- | 100.00% | |
| $1.08 | $4.1 | $0.176 | -- | -- | 99.95% | |
| $1.12 | $3.52 | $0.208 | -- | -- | -- | |
| $1.13 | $3.56 | $0.21 | -- | -- | 100.00% | |
| $1.19 | $3.74 | $0.196 | -- | -- | 99.79% | |
| $1.26 | $3.96 | $0.234 | -- | -- | 100.00% | |
| $1.26 | $3.96 | $0.234 | -- | -- | 100.00% | |
| $1.3 | $4.4 | $0.26 | -- | -- | 100.00% | |
| $1.35 | $4.4 | $0.23 | -- | -- | 97.7% | |
| $1.4 | $4.4 | $0.14 | -- | -- | -- | |
| $1.4 | $4.4 | $0.28 | -- | -- | 100.00% | |
| $1.4 | $4.4 | $0.26 | -- | -- | -- | |
| $1.4 | $4.4 | $0.26 | -- | -- | 97.9% | |
| $1.4 | $4.4 | $0.26 | -- | -- | 99.00% | |
| $1.4 | $4.4 | $0.26 | -- | -- | 98.6% | |
| $1.4 | $4.4 | $0.26 | -- | -- | -- | |
| $1.4 | $4.4 | $0.26 | -- | -- | 98.8% | |
| $1.4 | $4.4 | $0.14 | -- | -- | 100.00% | |
| $1.4 | $4.4 | $0.26 | -- | -- | 100.00% | |
| $1.4 | $4.4 | $0.26 | -- | -- | -- | |
| $1.4 | $4.4 | $0.26 | -- | -- | 100.00% | |
| $1.4 | $4.4 | $0.26 | -- | -- | 99.97% | |
| $2.1 | $6.6 | $0.21 | -- | -- | 100.00% |
USD per 1M tokens. Prices and metrics describe OpenRouter endpoints, not CLSSAI routing. “--” means no measurement was supplied. Uptime: last 30 minutes.
Pricing
Published base rates across providers, in USD per 1M tokens. Actual cost depends on the provider, caching and prompt length.
Input / 1M tokens$0.9 – $2.1
Output / 1M tokens$2.86 – $6.6
Cache read / 1M tokens$0.14 – $0.28
Effective Pricing: request-weighted costs and historical prices are not supplied by the public source.
Performance
Latency and throughput history are not supplied by the public endpoint API. Check OpenRouter for its latest performance charts.
Uptime
Successful requests in the last 30 minutes, as reported by OpenRouter. A snapshot does not show historical reliability.
InferenceNet Fp428.5%
DeepInfra Fp493.2%
Novita Fp894.0%
Reka Fp899.47%
Wafer98.4%
Io Net Fp895.3%
Phala99.96%
Morph Fp8100.00%
Inceptron Fp499.95%
Sail Research Fp8100.00%
Decart Fp499.79%
DigitalOcean100.00%
Friendli100.00%
AkashML Fp8100.00%
Makora Fp497.7%
Alibaba100.00%
Crusoe Fp497.9%
Venice99.00%
Together98.6%
Modal98.8%
BaseTen Fp4100.00%
Fireworks100.00%
AtlasCloud Fp8100.00%
Z.AI Fp899.97%
BaseTen Fp8100.00%
Benchmarks
No scored evaluations are included in the public model metadata. View the source for benchmarks and their methodology.
Apps
Application rankings require verified traffic data, which is not included in this source.
Activity
Historical token and request volumes are not supplied by the public API. OpenRouter shows activity on its own network.
Frequently asked questions
Provider availability, context limits and API capabilities.
Which providers serve Z.ai: GLM 5.3?
InferenceNet Fp4, DeepInfra Fp4, Novita Fp8, Reka Fp8, Wafer, Io Net Fp8, Phala, GMICloud Fp8, Morph Fp8, Inceptron Fp4, SiliconFlow Fp8, Sail Research Fp8, Decart Fp4, DigitalOcean, Friendli, AkashML Fp8, Makora Fp4, Mistral Nvfp4, Alibaba, Baidu Fp8, Crusoe Fp4, Venice, Together, Parasail Fp8, Modal, BaseTen Fp4, Fireworks, Cloudflare, AtlasCloud Fp8, Z.AI Fp8, BaseTen Fp8 are listed in the OpenRouter reference data. Check CLSSAI availability above before making a request.
What context length is available for Z.ai: GLM 5.3?
The largest available context window is 1,310,720 tokens.
Which API parameters does Z.ai: GLM 5.3 support?
The providers list 21 distinct supported parameters. Open an endpoint row to inspect them.
Explore
Continue comparing models or start integrating.