Use-case preset
Batch document translation cost calculator
Overnight bulk translation of documents across language pairs.
Batch document translation converts full documents overnight — contracts, manuals, reports — where source and target text are both substantial and roughly equal in length, driving the balanced 50/50 input/output split and 8k context per chunk. Documents are pre-chunked to fit the window while preserving paragraph boundaries.
Best-effort latency and batch scheduling mean throughput cost is the only dimension that matters. cachedPromptPercent of 10 captures only the shared system prompt specifying language pair and formatting constraints; the document body changes each call. Quality degradation on technical or legal terminology is the main risk — models with multilingual pretraining data (Qwen-2.5, Mistral, DeepSeek-V3) consistently outperform monolingual-skewed architectures. Running a small spot-check eval on 50 translated segments before committing to a full overnight batch avoids wasted spend on format drift.