@deep-tui/plugin-provider-deepseek

@deep-tui/plugin-provider-deepseek

First-party DeepSeek provider for Deep TUI. It reads DEEPSEEK_API_KEY from the process environment when a request starts; secrets do not belong in deep-tui.config.json.

The model aliases map to DeepSeek's official API identifiers:

export DEEPSEEK_API_KEY="your-key"
deep-tui run --model flash "Quick task"
deep-tui run --model pro "Hard reasoning task"

The full API identifiers are also accepted.

Streaming is on by default, including split reasoning/text/tool-call deltas and final usage. Set streaming: false in this plugin's config to use the canonical non-streaming compatibility path.

Thinking mode is enabled with reasoningEffort: "max" by default. Set reasoningEffort: "high" to reduce it, or thinking: false to disable thinking and omit reasoning output.

Usage responses include prompt, cache-hit, cache-miss, output, and current context token counts. Both DeepSeek's native cache fields and the standard OpenAI-compatible cached-token detail field are recognized. The plugin calculates session charges from those actual billable token classes using the public DeepSeek per-million-token prices checked on 2026-08-21. Each request uses the tariff active when it starts:

Prices are USD per million tokens. The provider also implements the billing service using DeepSeek's live /user/balance endpoint. Override pricing when proxy or vendor rates differ; supplied fields are treated as fixed rates in both periods. The live account balance and provider invoice remain authoritative.