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Parallelization

Independent subtasks run simultaneously.

API Calls per Conversation

Low

2

Mid

4

High

6

Best Use Cases

Multi-source researchA/B content generationParallel data processingEnsemble voting systems

Cost Drivers

  • Number of parallel branches (2-6 typical)
  • Each branch runs independently — costs are additive, not shared
  • Synthesis step to merge results adds overhead

Monthly Cost Scenarios

100/day

Sonnet 4.5 (3 branches)

$270-540/mo

500/day

Sonnet 4.5 (4 branches)

$1,800-3,600/mo

1,000/day

Haiku 4.5 (4 branches)

$1,200-2,400/mo

Optimization Tips

  • Only parallelize when tasks are genuinely independent
  • Use cheaper models for branches where quality variation is acceptable
  • Consider whether you need all branches or can early-exit when one succeeds

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