Question 1

How much does it cost to train an AI model?

Accepted Answer

Training cost depends on model size (parameters), dataset size, and GPU type. A small fine-tuned model (7B parameters) on a single A100 GPU costs $50-500. A foundation model like GPT-3 (175B) cost an estimated $4-12 million in compute. Our calculator estimates from architecture and cloud pricing.

Question 2

How do LLM token costs work?

Accepted Answer

LLM APIs charge per token - roughly 0.75 words per token. Costs vary by model: GPT-4 is more expensive than GPT-3.5 or Claude Haiku. Input and output tokens are often priced differently. At 1 million tokens per day with $0.002/1K tokens, that is $2/day or $730/year.

Question 3

How do I calculate AI project ROI?

Accepted Answer

AI ROI = (value of automation + revenue uplift - development cost - ongoing inference cost) / total investment x 100%. Most AI projects target payback within 12-24 months. Our calculator models labour savings, error reduction, and throughput gains against full deployment cost.

Question 4

Are these AI tools free?

Accepted Answer

Yes - completely free, no sign-up required. Results export to CSV or PDF.

Free Artificial Intelligence Tools & Calculators

AI calculators for engineers and product teams

AI Tools - FAQ