All Tools
Token Counter
Count tokens for any LLM model. Exact counts for OpenAI, estimates for Claude & Gemini.
Pricing Calculator
Compare API costs across all major LLM providers. Find the cheapest model for your workload.
Model Comparison
Compare 2-4 models side-by-side on context window, pricing, and capabilities.
Context Window Visualizer
See how much of a model's context window your text fills. Spot limits before hitting them.
API Cost Estimator
Project daily, monthly, and yearly API costs. Calculate profit margins for your AI product.
System Prompt Builder
Build system prompts from templates. See token count and cost per API call instantly.
RAG Pipeline Cost Calculator
Calculate full RAG pipeline costs: embedding, vector DB, retrieval, and generation.
VRAM Calculator
Check if an LLM fits on your GPU. Supports quantization, context length, and Apple Silicon.
Multi-Modal Token Calculator
Calculate tokens and costs for images, audio, and video across GPT-4o, Claude, and Gemini.
Embeddings Cost Calculator
Compare embedding costs across OpenAI, Cohere, Voyage, and Google with chunking estimates.
Rate Limit Calculator
Check RPM and TPM limits by provider and tier. Find bottlenecks and estimate batch job time.
Function Calling Token Calculator
Calculate token overhead from tool/function schemas. Compare across models and optimize.