peptiderepo dcc8b7b183 feat: LLM-powered image prompt rewriting for FLUX.1 ...

Replaces the rule-based prompt builder with a cheap LLM call
(analysis model via OpenRouter) that distills article content into
concise visual scene descriptions. The old rule-based method becomes
the fallback if the LLM call fails.

Key design decisions:
- System prompt teaches the LLM to describe objects/setting/lighting
  instead of abstract concepts, and to avoid faces (FLUX.1 weakness)
- Uses the analysis model (gemini-2.5-flash-lite) at ~$0.001/call
- Cost is logged to the analytics dashboard via log_api_call()
- Style suffix is still appended separately so the rewriter only
  handles scene composition

Cost impact: +~$0.001 per image on top of ~$0.0008 generation cost.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-04-18 02:06:22 +07:00

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