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15 lines
825 B
Markdown
15 lines
825 B
Markdown
# Token Caching and Cost Optimization
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Qwen Code automatically optimizes API costs through token caching when using API key [authentication](/users/configuration/settings#environment-variables-for-api-access) (e.g., OpenAI-compatible providers). This feature reuses previous system instructions and context to reduce the number of tokens processed in subsequent requests.
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**Token caching is available for:**
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- API key users (Qwen API key)
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- Vertex AI users (with project and location setup)
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**Token caching is not available for:**
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- OAuth users (Google Personal/Enterprise accounts) - the Code Assist API does not support cached content creation at this time
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You can view your token usage and cached token savings using the `/stats` command. When cached tokens are available, they will be displayed in the stats output.
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