Z.ai: GLM 5.3 Flash
by Z.aiZ.ai: GLM 5.3 Flash is a large language model from Z.ai. It costs $0.150 per million input tokens and $0.500 per million output tokens. Its context window is 1.0M tokens.
- Input / 1M tokens
- $0.150
- Output / 1M tokens
- $0.500
- Cached input / 1M
- $0.030
- Context window
- 1.0M
On repeated prefixes
tokens
Who serves it cheapest
35 hosts serve GLM 5.3 Flash. Same weights, same API - the price difference is pure margin and routing.
| Provider | Input / 1M | Output / 1M | Context | Throughput | Uptime 24h |
|---|---|---|---|---|---|
| OpenInferenceCheapestfp4 | $0.053 | $0.057 | 1.0M | - | 100.0% |
| Relace | $0.050 | $0.071 | 1.0M | - | 100.0% |
| Wafernvfp4 | $0.054 | $0.200 | 1.0M | - | 100.0% |
| Darkbloomfp4 | $0.065 | $0.180 | 262K | - | 96.4% |
| GMICloudfp8 | $0.075 | $0.250 | 1.0M | - | 99.2% |
| Sail Researchfp4 | $0.078 | $0.250 | 1.0M | - | 99.9% |
| Novitafp8 | $0.084 | $0.280 | 1.0M | - | 99.9% |
| StreamLakefp8 | $0.089 | $0.295 | 1.0M | - | 99.4% |
| Morphfp8 | $0.138 | $0.226 | 1.0M | - | 99.9% |
| Reka | $0.120 | $0.300 | 1.0M | - | 100.0% |
| InferenceNetfp4 | $0.108 | $0.350 | 1.0M | - | 100.0% |
| DigitalOcean | $0.112 | $0.375 | 1.0M | - | 100.0% |
| Near AIfp8 | $0.080 | $0.500 | 1.0M | - | 100.0% |
| CoreWeavenvfp4 | $0.120 | $0.380 | 1.0M | - | 99.9% |
| Phalanvfp4 | $0.128 | $0.425 | 1.0M | - | 99.4% |
| NextBitfp4 | $0.120 | $0.480 | 1.0M | - | 99.9% |
| Makora | $0.140 | $0.470 | 1.0M | - | 99.4% |
| Particle AInvfp4 | $0.150 | $0.500 | 1.0M | - | 99.7% |
| Mistral | $0.150 | $0.500 | 1.0M | - | 97.9% |
| Cohere | $0.150 | $0.500 | 1.0M | - | 100.0% |
| PrimeIntellect | $0.150 | $0.500 | 1.0M | - | 100.0% |
| Nebiusfp4 | $0.150 | $0.500 | 1.0M | - | 98.4% |
| Modalfp4 | $0.150 | $0.500 | 1.0M | - | 100.0% |
| BaseTenfp8 | $0.150 | $0.500 | 1.0M | - | - |
| Crusoefp4 | $0.150 | $0.500 | 1.0M | - | 99.7% |
| AtlasCloudfp8 | $0.150 | $0.500 | 1.0M | - | 97.8% |
| Fireworks | $0.150 | $0.500 | 1.0M | - | 98.7% |
| Friendli | $0.150 | $0.500 | 1.0M | - | 99.9% |
| SiliconFlowfp8 | $0.150 | $0.500 | 1.0M | - | 90.7% |
| Together | $0.150 | $0.500 | 1.0M | - | 98.2% |
| Parasailfp4 | $0.150 | $0.500 | 1.0M | - | 100.0% |
| Venice | $0.150 | $0.500 | 1.0M | - | 98.8% |
| DeepInfrafp4 | $0.150 | $0.500 | 1.0M | - | 100.0% |
| Z.AIfp8 | $0.150 | $0.500 | 1.0M | - | 100.0% |
| Inceptronfp8 | $0.170 | $0.600 | 1.0M | - | 100.0% |
The spread between OpenInference and Inceptron is 5.1× for identical weights. Quantization and context limits differ, so check both columns before switching.
Benchmarks
Independent scores published alongside the catalogue.
- Coding index
- 71.5
- Agentic index
- 50.9
About GLM 5.3 Flash
GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Its hybrid sparse and linear attention architecture maintains accurate long-context behavior while...
Specifications
| Model ID | z-ai/glm-5.3-flash |
|---|---|
| Provider | Z.ai |
| Context window | 1.0M tokens |
| Max output | 944K tokens |
| Input modalities | text, image, video |
| Output modalities | text |
| Knowledge cutoff | - |
| Open weights | Yes - zai-org/GLM-5.3-Flash |
| Released | August 26, 2026 |
Cheaper alternatives
Models that cost less than GLM 5.3 Flash while keeping at least half its context window and every input modality it supports.
Frequently asked
How much does Z.ai: GLM 5.3 Flash cost?
$0.150 per million input tokens and $0.500 per million output tokens. Cached input reads cost $0.030 per million tokens.
What is the context window of Z.ai: GLM 5.3 Flash?
1.0M tokens, with up to 944K tokens of output per request.
Which provider serves Z.ai: GLM 5.3 Flash cheapest?
OpenInference at $0.053 per million input tokens - 5.1× cheaper than Inceptron, the most expensive of the 35 hosts serving it.
Confirm against the source: Z.ai official pricing.