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AI cost tools hub
Free calculators for API token budgets, local GPU and VRAM planning, RAG and embeddings, and Exact tokenization. Pick a category, or open the full directory.
Full directory · Cost calculator · Tokenizer · Compare models
Categories
- API cost tools Budget token spend, caching, batch jobs, and agent stacks against published catalog rates.
- Local and GPU tools Estimate VRAM, GPU vs API break-even, fine-tune cost, and AI video budgets before you rent hardware.
- RAG and embedding tools Price corpus indexing, retrieval packs, and generation so you see which line dominates.
- Tokenization tools Exact OpenAI counts, Approx cross-model checks, visualizers, and rough words to tokens.
API cost tools
Budget token spend, caching, batch jobs, and agent stacks against published catalog rates.
- LLM cost calculatorPaste a prompt, pick a catalog model, and see Exact or Approx token cost with monthly projection.
- Cache savingsEstimate how much prompt caching saves at your hit rate and monthly volume.
- Batch pricingCompare standard vs Batch API cost for the same token profile and job count.
- AI agent ROI calculatorStack system, tool, and retry tokens for an agent turn, then compare API spend to human VA hours.
- Cheapest LLM APIRank every catalog model by input rate and an example request of 1000 input tokens and 500 output tokens.
- Compare modelsPaste one prompt and price it across catalog models, or open featured pair pages.
Local and GPU tools
Estimate VRAM, GPU vs API break-even, fine-tune cost, and AI video budgets before you rent hardware.
- GPU / LLM cost calculatorCompare catalog API spend to cloud GPU rental or purchase amortization. Break-even volume and capacity check.
- LLM VRAM calculatorEstimate GPU memory from parameters, precision, context, and KV cache. Presets for popular open models.
- LLM fine-tune cost calculatorEstimate LoRA or full fine-tune GPU hours and training tokens, then compare to ongoing API spend.
- AI video cost calculatorBudget credits, minutes, or subscriptions for generative video with editable reference rates.
RAG and embedding tools
Price corpus indexing, retrieval packs, and generation so you see which line dominates.
- RAG cost calculatorEstimate corpus embedding, per-query retrieval pack, and generation cost. See which line dominates monthly spend.
- Embedding cost calculatorEstimate corpus indexing and query embedding spend. Compare reference embed models and optional batch discounts.
- Context window calculatorBudget system, history, RAG, and reserved output against a model window. See fit, headroom, and other models that hold the same total.
Tokenization tools
Exact OpenAI counts, Approx cross-model checks, visualizers, and rough words to tokens.
- TokenizerExact OpenAI token counts with o200k and cl100k, plus cost for the selected catalog model.
- Tokenizer comparisonPaste once and compare Exact OpenAI encodings vs Approx Claude, Gemini, and host tokenizers. See deltas and example cost.
- Token visualizerSee Exact OpenAI token pieces as colored chips with token IDs. Switch o200k and cl100k encodings.
- Tokens ↔ wordsRough Approx converter between words, characters, and tokens for English budgeting.
Core calculators
Tools directory · API cost hub · Local and GPU hub · RAG hub · Tokenization hub · Cost calculator
Related guides
How prompt cost is calculated · Exact vs Approx token counts · RAG cost calculator: estimate pipeline spend
Sources and references
Official documentation used for definitions, counting methods, or rate cards. Always confirm critical budgets on the provider page.