Z.ai API pricing
Prices per million tokens for the 4 Z.ai models we track, with context windows and what a typical task costs. The cheapest is GLM 5.3 Flash at $0.150 input and $0.500 output per million tokens; the largest context window is GLM 5.3 Flash's 1.0M tokens. Updated 25 Oct 2026.
| Model | Input / 1M | Output / 1M | Context | Tools | Reasoning |
|---|---|---|---|---|---|
| GLM 5.3 Flash | $0.150 | $0.500 | 1.0M | Yes | Yes |
| GLM 5.3 FlashX | $0.370 | $1.25 | 1.0M | Yes | Yes |
| GLM 5.3 | $0.079 | $1.40 | 1.0M | Yes | Yes |
| GLM 5.3 Prime | $2.80 | $8.80 | 1M | Yes | Yes |
What Z.ai models cost per task
Using the listed prices, for three common jobs: a chat turn (2,000 tokens in, 500 out), summarising a 100,000-token document into 2,000 tokens, and a long agent run (1 million in, 50,000 out).
- GLM 5.3 Flash: chat turn $0.0006, document $0.016, agent run $0.175
- GLM 5.3 FlashX: chat turn $0.0014, document $0.040, agent run $0.432
- GLM 5.3: chat turn $0.0009, document $0.011, agent run $0.149
- GLM 5.3 Prime: chat turn $0.010, document $0.298, agent run $3.24
How Z.ai compares with other providers
Across all 40 models we track, the cheapest Z.ai model ranks #7 by output price. For a model-by-model comparison, see the full price table or the guide to choosing an LLM.
Other providers: Anthropic pricing · OpenAI pricing · Google pricing · Meta pricing · DeepSeek pricing · Mistral AI pricing · Qwen (Alibaba) pricing · xAI pricing · Moonshot AI pricing
Prices and limits come from OpenRouter's public model catalogue, last synced 25 Oct 2026. Z.ai's own API pricing can differ and changes often; confirm on its pricing page before you commit.
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