How to Write Perfect Prompts for GPT-4o & Claude 3.5 Sonnet
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When building LLM wrappers or talking to AI, managing API costs and context limits is all about token counts. But calculating token distributions using standard javascript regex is highly inaccurate. We integrated the official gpt-tokenizer npm package into a free web utility tool so you can test prompt structures, format system instructions, and get the exact token distribution before sending API calls. You can calculate tokens and format presets instantly using the free online AI Prompt…
1Key Takeaways
- When building LLM wrappers or talking to AI, managing API costs and context limits is all about token counts.
- But calculating token distributions using standard javascript regex is highly inaccurate.
- We integrated the official gpt-tokenizer npm package into a free web utility tool so you can test prompt structures, format system instructions, and get the exact token distribution before sending API calls.
- You can calculate tokens and format presets instantly using the free online AI Prompt….
2AIWedia Score
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3Why it matters
Prompt and agent patterns spread fast; staying current saves time and token cost. DEV — Prompt Engineering reports that when building LLM wrappers or talking to AI, managing API costs and context limits is all about token counts.
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