Is the AI cost calculator free?

Yes — every TokenAtlas calculator is free to use without an account. The free plan covers 20 calculations per day; Pro removes the limit.

Which LLMs are supported?

OpenAI (GPT-4o, GPT-4o mini, o1), Anthropic (Claude 3.5 Sonnet, Haiku), Google (Gemini 1.5 Pro, 2.0 Flash), Mistral, Groq (Llama 3.1), DeepSeek and more.

How accurate are the cost estimates?

Token prices come straight from each provider's public pricing page and are updated as models launch. For production-grade accuracy connect TokenAtlas to your provider account.

What's the difference between the three calculators?

Token Calculator prices a single LLM request. SaaS Margin Calculator models per-user AI cost vs subscription price. Agent Workflow Calculator adds tool calls, retrieval and image generation on top of LLM cost.

A token is the unit of text the model reads and writes. In English, one token is roughly 3–4 characters or about ¾ of a word. The word "calculator" is two tokens; a typical sentence is 15–25 tokens. OpenAI bills every input and output token separately, so trimming verbose prompts directly trims your bill.

How is OpenAI API cost calculated?

Cost per request = (input tokens ÷ 1,000,000) × input price + (output tokens ÷ 1,000,000) × output price. For GPT-4.1 that is $2.00/M input and $8.00/M output. Multiply per-request cost by your calls per day and active days to get your monthly burn. Cached input tokens and Batch API calls receive additional discounts.

How to reduce GPT API cost?

Route simple traffic to GPT-4o mini or Claude Haiku, keep system prompts stable so prompt caching kicks in, trim retrieved RAG chunks, cap max_tokens, run non-urgent jobs on the Batch API for 50% off, and tag every call with the feature it powers so one runaway workflow does not silently drive your bill.

Is GPT-4.1 more expensive than GPT-4o?

On paper GPT-4.1 is cheaper: $2.00/$8.00 per million tokens vs GPT-4o at $2.50/$10.00. GPT-4o is multimodal and lower latency, so the right question is not which is cheaper but which fits the workload. For long-context text reasoning, GPT-4.1 is both cheaper and stronger.

Is the GPT-4.1 pricing data up to date?

Yes — TokenAtlas tracks OpenAI's pricing page and ships updates within 24 hours of any change.

How accurate are the estimates?

Within ~3% of your real bill assuming consistent token counts, cached-input usage, and a typical retry rate. Real invoices vary slightly with traffic patterns and OpenAI's rounding.

Can I save scenarios?

Yes. Free accounts save up to 5 scenarios; Pro and Team plans get unlimited saved calculations, CSV export, and side-by-side model comparison.

💡 Save ~17% with yearly billing — 2 months free on Pro & Team 💡 Save ~17% with yearly billing — 2 months free on Pro & Team 💡 Save ~17% with yearly billing — 2 months free on Pro & Team

TokenAtlas

AI Cost Optimization Platform

Estimate, optimize and manage your AI spend.

Start with a free estimate. Unlock the full optimization report to see where you may be overpaying — model switches, efficiency wins, and savings projections, in one platform.

AI Cost Calculator

Instant monthly cost estimate based on average input/output pricing.

1 Select model

2 Monthly tokens5,000,000

3 Estimated monthly cost

~$23.75/ mo

Based on average pricing — input $2.50 / output $10.00 per 1M tokens.

Potential monthly savings

~$22.00

~$264 / year on the table

Alternative model detected

OpenAI GPT-4o mini

Comparable tier · 94% lower output cost

Efficiency gap

94%

vs. cheaper frontier in your quality tier

Optimization intelligence · Locked

What's hidden in this estimate

Every AI cost calculator in one place

AI cost calculators turn provider token pricing into the number that actually matters: your monthly bill. Each calculator below is preloaded with the latest list pricing for that model family, lets you tune input/output tokens and request volume, and shows side-by-side comparisons against the most common alternatives — so you can decide between GPT-4.1, GPT-4o, Claude Opus 4, Claude Sonnet 4, Gemini 2.5 Pro, Mistral Large and DeepSeek V3 before you commit to a model.

New to LLM pricing? Start with the generic token cost calculator or read the LLM API pricing comparison.

Frequently asked questions

Is the AI cost calculator free?: Yes — every TokenAtlas calculator is free to use without an account. The free plan covers 20 calculations per day; Pro removes the limit.
Which LLMs are supported?: OpenAI (GPT-4o, GPT-4o mini, o1), Anthropic (Claude 3.5 Sonnet, Haiku), Google (Gemini 1.5 Pro, 2.0 Flash), Mistral, Groq (Llama 3.1), DeepSeek and more.
How accurate are the cost estimates?: Token prices come straight from each provider's public pricing page and are updated as models launch. For production-grade accuracy connect TokenAtlas to your provider account.
What's the difference between the three calculators?: Token Calculator prices a single LLM request. SaaS Margin Calculator models per-user AI cost vs subscription price. Agent Workflow Calculator adds tool calls, retrieval and image generation on top of LLM cost.

See TokenAtlas pricing