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AI Prompt Cost Calculator
Estimate monthly LLM spend across GPT-5, Claude, and Gemini. No login, no tracking.
~750 words = 1,000 tokens
Monthly Cost Estimate
| Model | Per call | Monthly |
|---|---|---|
| GPT-5 NanoCheapest | $0.0003 | $0.39 |
| Gemini 2.5 Flash | $0.0004 | $0.58 |
| GPT-5 Mini | $0.0008 | $1.17 |
| Claude Haiku 4.5 | $0.0048 | $7.20 |
| Gemini 2.5 Pro | $0.0065 | $9.75 |
| Claude Sonnet 4.5 | $0.0180 | $27.00 |
| GPT-5 | $0.0220 | $33.00 |
GPT-5 Nano is 85x cheaper than GPT-5 for this workload. For most production use cases, mid-tier (Sonnet, Gemini Pro, GPT-5 Mini) hits the right cost / quality balance.
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