AI Chatbot Cost Estimator
Plan your AI chatbot budget: enter usage numbers, pick a model, and see the estimated monthly cost in USD with a full breakdown and side-by-side model comparison.
Your usage
Monthly estimate —
Cost breakdown
| Item | Tokens | Price per 1k | Cost |
|---|---|---|---|
| Total | |||
Model comparison
Same usage, estimated monthly cost for each model. Prices are assumptions — see the note below.
Assumptions used
- 30 days per month; input tokens = 60 percent, output tokens = 40 percent of total.
- 1 conversation = 10 messages on average.
- Per 1k token prices (2026 public pricing, may change): GPT-4o 0.005 in / 0.015 out, GPT-4o mini 0.00015 in / 0.0006 out, Claude 3.5 Sonnet 0.003 in / 0.015 out, Gemini 1.5 Pro 0.00125 in / 0.005 out, Llama 3.1 8B hosted 0.0002 in / 0.0002 out, all USD.
- This is a planning estimate, not a bill. Check official provider pricing for exact numbers.
Frequently Asked Questions (FAQ)
How is the monthly chatbot cost calculated?
The tool multiplies messages per day by 30, then by average tokens per message. It splits tokens into 60 percent input and 40 percent output and applies the selected model per 1k token price.
What does the embedding and indexing option add?
Enabling it adds a flat estimated 5 USD per month for vector embedding and index storage, which many retrieval based chatbots need.
Are the prices shown the exact current prices?
No. Prices are labeled assumptions from 2026 public pricing and may change. Always check the official model pricing page before budgeting.
What is the cost per 1k conversations?
It assumes 10 messages per conversation on average and shows the estimated cost for 1,000 conversations, which is useful for planning pricing tiers.
Does this tool store my numbers?
No. Everything runs in your browser and nothing is sent or stored anywhere.