AI Prompt Token Cost Calculator
ANA›Life Services Authority›National Calculator Authority›AI Prompt Token Cost Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
AI Prompt Token Cost Calculator
Estimate the cost of AI API calls based on input/output token usage across popular models.
Model
GPT-4o ($0.0025 / $0.01 per 1K tokens) GPT-4o mini ($0.00015 / $0.0006 per 1K tokens) GPT-4 Turbo ($0.03 / $0.06 per 1K tokens) GPT-4 ($0.03 / $0.06 per 1K tokens) GPT-3.5 Turbo ($0.0005 / $0.0015 per 1K tokens) o1 ($0.015 / $0.075 per 1K tokens) o1-mini ($0.003 / $0.012 per 1K tokens)
Claude 3.5 Sonnet ($0.003 / $0.015 per 1K tokens) Claude 3 Opus ($0.015 / $0.075 per 1K tokens) Claude 3 Haiku ($0.00025 / $0.00125 per 1K tokens)
Gemini 1.5 Pro ($0.00125 / $0.005 per 1K tokens) Gemini 1.5 Flash ($0.000075 / $0.0003 per 1K tokens) Gemini 1.5 Flash-8B (Free tier)
Llama 3.1 405B ($0.0009 / $0.0009 per 1K tokens) Llama 3.1 70B ($0.00018 / $0.00018 per 1K tokens)
Custom (enter your own prices)
Custom Input Price ($ per 1K tokens)
Custom Output Price ($ per 1K tokens)
Input Tokens per Request
~750 words ≈ 1,000 tokens. A typical prompt is 100–2,000 tokens.
Output Tokens per Request
A short reply ≈ 100–500 tokens; a long essay ≈ 1,000–4,000 tokens.
Number of Requests
Calculate Cost
function aiUpdatePrices() { var sel = document.getElementById('ai-model'); var val = sel.value; var customDiv = document.getElementById('ai-custom-prices'); customDiv.style.display = (val === 'custom') ? 'block' : 'none'; }
function aiCalc() { var resultDiv = document.getElementById('ai-result'); var sel = document.getElementById('ai-model'); var modelVal = sel.value; var modelName = sel.options[sel.selectedIndex].getAttribute('data-name');
var inputTokens = parseFloat(document.getElementById('ai-input-tokens').value); var outputTokens = parseFloat(document.getElementById('ai-output-tokens').value); var requests = parseFloat(document.getElementById('ai-requests').value);
// Validation if (isNaN(inputTokens) || inputTokens Please enter a valid number of input tokens (> 0).'; return; } if (isNaN(outputTokens) || outputTokens Please enter a valid number of output tokens (> 0).'; return; } if (isNaN(requests) || requests Please enter a valid number of requests (> 0).'; return; } if (!Number.isInteger(inputTokens)) { resultDiv.innerHTML = 'Input tokens must be a whole number.'; return; } if (!Number.isInteger(outputTokens)) { resultDiv.innerHTML = 'Output tokens must be a whole number.'; return; } if (!Number.isInteger(requests)) { resultDiv.innerHTML = 'Number of requests must be a whole number.'; return; }
var inputPricePer1K, outputPricePer1K;
if (modelVal === 'custom') { inputPricePer1K = parseFloat(document.getElementById('ai-custom-input-price').value); outputPricePer1K = parseFloat(document.getElementById('ai-custom-output-price').value); if (isNaN(inputPricePer1K) || inputPricePer1K Please enter a valid custom input price (≥ 0).'; return; } if (isNaN(outputPricePer1K) || outputPricePer1K Please enter a valid custom output price (≥ 0).'; return; } } else { var parts = modelVal.split(','); inputPricePer1K = parseFloat(parts[0]); outputPricePer1K = parseFloat(parts[1]); }
// Core formula // Cost per request = (inputTokens / 1000) * inputPricePer1K + (outputTokens / 1000) * outputPricePer1K var inputCostPerReq = (inputTokens / 1000) * inputPricePer1K; var outputCostPerReq = (outputTokens / 1000) * outputPricePer1K; var totalCostPerReq = inputCostPerReq + outputCostPerReq;
var totalInputTokens = inputTokens * requests; var totalOutputTokens = outputTokens * requests; var totalTokens = totalInputTokens + totalOutputTokens;
var totalInputCost = inputCostPerReq * requests; var totalOutputCost = outputCostPerReq * requests; var totalCost = totalCostPerReq * requests;
// Projections var costPer100 = totalCostPerReq * 100; var costPer1000 = totalCostPerReq * 1000; var costPer10000 = totalCostPerReq * 10000;
function fmt(n, d) { d = d === undefined ? 6 : d; if (n === 0) return '$0.000000'; if (n >= 0.01) return '$' + n.toFixed(4); return '$' + n.toFixed(d); } function fmtTokens(n) { return n.toLocaleString(); }
resultDiv.innerHTML = '### Results for ' + modelName + ' ' + '' + 'MetricValue' + 'Input price$' + inputPricePer1K.toFixed(6) + ' / 1K tokens' + 'Output price$' + outputPricePer1K.toFixed(6) + ' / 1K tokens' + 'Input cost per request' + fmt(inputCostPerReq) + '' + 'Output cost per request' + fmt(outputCostPerReq) + '' + 'Total cost per request' + fmt(totalCostPerReq) + '' + 'Total input tokens' + fmtTokens(totalInputTokens) + '' + 'Total output tokens' + fmtTokens(totalOutputTokens) + '' + 'Total tokens' + fmtTokens(totalTokens) + '' + 'Total input cost' + fmt(totalInputCost, 4) + '' + 'Total output cost' + fmt(totalOutputCost, 4) + '' + '💰 Total Cost (' + fmtTokens(requests) + ' requests)' + fmt(totalCost, 4) + '' + '' + '#### Cost Projections ' + '' + 'ScaleEstimated Cost' + '100 requests' + fmt(costPer100, 4) + '' + '1,000 requests' + fmt(costPer1000, 4) + '' + '10,000 requests' + fmt(costPer10000, 4) + '' + ''; }
#### Formula
Input Cost per Request = (Input Tokens ÷ 1,000) × Input Price per 1K Tokens
Output Cost per Request = (Output Tokens ÷ 1,000) × Output Price per 1K Tokens
Total Cost per Request = Input Cost per Request + Output Cost per Request
Total Cost = Total Cost per Request × Number of Requests
Example: 500 input tokens + 300 output tokens × 1,000 requests on GPT-4o mini: Input = (500/1000) × $0.00015 = $0.000075/req → $0.075 total Output = (300/1000) × $0.0006 = $0.00018/req → $0.18 total Grand Total = $0.255
#### Assumptions & References
- Sources: OpenAI Pricing, Anthropic Pricing, Google AI Pricing.
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