LLM Token Cost Estimator
Compare input/output token API costs across OpenAI GPT-4o, Anthropic Claude 3.5, and Google Gemini models.
Características Principales y Garantía de Privacidad
- ✓ Ejecución 100% en el Navegador: Tus datos nunca salen de tu dispositivo ni tocan servidores remotos.
- ✓ Salida Instantánea en Tiempo Real: Cero latencia de red, evaluación al teclear y copiado rápido.
- ✓ Gratis e Ilimitado para Siempre: Sin registro, sin barreras de pago ni límites diarios.
- ✓ Cumplimiento de Estándares: Desarrollado según especificaciones web RFC, ISO y W3C.
Compare AI model API costs per request and per month
Calculate exact API costs for GPT-4o, GPT-4o-mini, Claude 3.5 Sonnet, Haiku, Gemini 1.5 Pro, and DeepSeek models based on your token usage.
Especificaciones Técnicas y Arquitectura
- Execution Environment:
- 100% Client-Side Browser Sandbox
- Data Privacy:
- Zero Server Storage / No Tracking
- Processing Speed:
- Real-time local CPU execution
- Cross-Platform:
- Works on Windows, macOS, Linux, iOS & Android
Prompt Engineering & Token Estimation Engine
LLM utilities evaluate prompt lengths, structure system instructions, and calculate approximate token counts based on byte-pair encoding (BPE) algorithms used by OpenAI, Anthropic, and Google models. This helps prevent token budget overflows and optimizes monthly API expenditure.
Provide Input
Enter, paste, or upload your data into the input field above.
Configure & Process
The tool immediately processes your input in real time according to your chosen settings.
Copy or Save
Use the Copy button to copy the output to your clipboard, or download the result to your device.
Casos de Uso Comunes
- Budget monthly API costs for AI startups and LLM wrapper products
- Compare token pricing between GPT-4o, Claude 3.5 Sonnet, and Gemini 1.5 Pro
- Optimize prompt lengths to reduce OpenAI API bills
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Herramientas Relacionadas y Siguientes Pasos
Utilidades de desarrollo recomendadas usadas con frecuencia junto a LLM Token Cost Estimator & Model Pricing Comparison
Prompt Token Counter
Count characters, words, and estimate tokens for LLM prompts. Useful for OpenAI, Claude, and other AI APIs.
LLM JSON Extractor
Extract JSON from LLM responses. Parse code blocks and clean malformed JSON from AI output.
MCP Tool Schema Generator
Generate Model Context Protocol (MCP) tool definitions. Create name, description, and inputSchema JSON for MCP servers.
Otras Herramientas de IA y LLM
Prompt Token Counter
Count characters, words, and estimate tokens for LLM prompts. Useful for OpenAI, Claude, and other AI APIs.
LLM JSON Extractor
Extract JSON from LLM responses. Parse code blocks and clean malformed JSON from AI output.
MCP Tool Schema Generator
Generate Model Context Protocol (MCP) tool definitions. Create name, description, and inputSchema JSON for MCP servers.
MCP Config Formatter
Format and validate MCP server configuration (mcp.json). Pretty-print and check structure for Cursor, Claude, and other MCP clients.
llms.txt Generator
Generate llms.txt for your website. Creates AI-readable discovery file with name, summary, contact, and services. Spec 1.1.1 compatible.
Prompt Template Builder
Build prompts with {{variable}} placeholders. Fill in values and preview. For reusable AI prompts.
System Prompt Generator
Generate system prompts for LLMs. Role, task, constraints, output format. For ChatGPT, Claude, etc.
Few-Shot Prompt Builder
Build few-shot prompts with input-output examples. Structure examples for in-context learning.
Preguntas frecuentes
- How is LLM API pricing calculated?
- LLM providers charge per 1 Million (1M) input tokens and output tokens. Output tokens are typically 3x to 4x more expensive than input tokens.
- How many words are in 1,000 tokens?
- In English, 1,000 tokens equal approximately 750 words (or ~4,000 characters).
- Which AI model is most cost-effective for high volume?
- GPT-4o-mini, Gemini 1.5 Flash, and DeepSeek-V3 offer the lowest cost per 1M tokens for lightweight tasks.