LLM Tokenizer & Payload Estimator
Paste text or JSON to estimate tokens and cost per request for GPT-4, Claude, StepFun, and DeepSeek.
Input
Cost Model
Estimator uses approximate chars-per-token heuristics by provider.
- GPT-4 class: ~3.5 chars/token
- Claude class: ~3.8 chars/token
- StepFun class: ~3.6 chars/token
- DeepSeek class: ~3.4 chars/token
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