> ## Documentation Index
> Fetch the complete documentation index at: https://docs.venice.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# GLM 5.3 Flash API

> GLM 5.3 Flash API on Venice: 1M context, $0.15 input and $0.50 output per 1M tokens. Private and end-to-end encrypted variants.

> [accordion] Plain-text specification
>
> ## GLM 5.3 Flash API
>
> GLM 5.3 Flash is a large language model by Z.ai, available on the Venice API as `z-ai-glm-5-3-flash`. Private and end-to-end encrypted variants are available.
>
> GLM-5.3 Flash is a reasoning model designed for coding, sustained agentic work, and production workloads. It is suited for long-horizon software engineering, complex reasoning, and workflows that combine text with visual context.
>
> ### GLM 5.3 Flash API pricing
>
> | Model ID | Variant | Privacy | Price |
> | - | - | - | - |
> | `z-ai-glm-5-3-flash` | Standard | Private | $0.15 / $0.50 per 1M |
> | `e2ee-glm-5-3-flash` | E2EE | E2EE | $0.16 / $0.54 per 1M |
>
> ### GLM 5.3 Flash specifications
>
> | Spec | Value |
> | - | - |
> | Provider | Z.ai |
> | Released | Aug 21, 2026 |
> | Privacy | Private, E2EE |
> | Status | Stable |
> | Open weights | Yes |
> | Context window | 1M tokens |
> | Max output | 128K tokens |
> | Reasoning effort | Not adjustable |
>
> ### How to use the GLM 5.3 Flash API
>
> Send requests to `POST https://api.venice.ai/api/v1/chat/completions` with `"model": "z-ai-glm-5-3-flash"` and your API key.
>
> ```bash theme={"system"}
> curl https://api.venice.ai/api/v1/chat/completions \
>   -H "Authorization: Bearer $VENICE_API_KEY" \
>   -H "Content-Type: application/json" \
>   -d '{
>     "model": "z-ai-glm-5-3-flash",
>     "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }]
>   }'
> ```
>
> ### Related models
>
> * [Qwen 3.8 Flash API](https://docs.venice.ai/models/qwen-3-8-flash.md): $0.14 / $0.49 per 1M
> * [MiMo-V2.6-Flash API](https://docs.venice.ai/models/mimo-v2-6-flash.md): $0.175 / $0.35 per 1M
> * [GPT-6 Luna API](https://docs.venice.ai/models/gpt-6-luna.md): $0.10 / $0.50 per 1M
> * [Gemma 4 Uncensored API](https://docs.venice.ai/models/gemma-4-uncensored.md): $0.1625 / $0.50 per 1M


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