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AI Token Calculator & LLM Cost Comparison

Estimate tokens, compare official API prices, model multi-turn conversations and project costs from one request to annual scale. Every displayed rate links to its first-party source.

Pricing verified from official provider sourcesGlobal verification date: July 16, 2026

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Model-family estimate. Tokenization varies by model, language, JSON, emoji and code. Use Known Tokens when an exact provider count is available.

Cheapest estimate

$0.00

Selected models

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Input tokens

0

Output tokens

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Monthly model-cost comparison

Accessible monthly model-cost data

AI API pricing comparison

USD per million tokens unless noted. Open a first-party source before making a purchasing decision.

Provider / modelStatusInputCachedOutputContextRequestMonthlyDifferenceSourceVerified

Cost composition per request

Cost composition data

Cost at scale

Select a model

Cost at scale data

Deterministic model recommendations

Rules filter recorded technical eligibility, then show price positions. They do not invent quality scores or call one model objectively best.

Quality, latency, rate limits, regional availability, and workload-specific benchmark performance are not ranked without separately sourced evidence.

Privacy: Your pasted text is processed in your browser and is not stored. Analytics events contain only action names—not prompt text, documents, API keys, or calculation contents.

How much do AI tokens cost?

Providers normally publish rates per million tokens. A request can combine standard input, cached reads, cache writes, model output and separately billed tools. Long-context thresholds may change the price for every token in the request. For that reason, a single blended “price per token” can be misleading.

How do you calculate LLM API cost?

standard input tokens / 1,000,000 × input rate
+ cached tokens / 1,000,000 × cache rate
+ output tokens / 1,000,000 × output rate
+ tool and modality charges = total

PiSkill uses unrounded decimal arithmetic internally and rounds only for presentation. Provider billing systems and taxes may differ.

Official pricing sources

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AI token calculator FAQ

How much do AI tokens cost?

Token prices depend on the provider, model, direction and pricing tier. Input, cached input and output can have different rates. This calculator applies each selected model's sourced USD rates to the same workload.

How do you calculate LLM API cost?

Multiply each billable token category by its applicable per-million rate, then add tool and modality charges. Monthly cost multiplies the per-request result by request volume; the full formula remains visible beside each result.

Which AI model API is cheapest?

There is no universal cheapest model. The answer changes with output length, cache use, batch eligibility, context size, tools and technical requirements. PiSkill identifies the lowest calculated price only among eligible selected models.

How accurate is an AI token calculator?

Cost arithmetic can be exact when token counts and pricing conditions are known. Pasted-text counts are estimates unless a maintained local tokenizer matches the selected model. Provider invoices remain authoritative.

What is the difference between input and output tokens?

Input tokens contain the instructions and context sent to a model. Output tokens are generated by the model. Providers commonly price output tokens at a higher rate.

What are cached tokens?

Prompt caching can reuse stable input across requests. Supported providers may charge separate cache-read and cache-write rates, with eligibility, retention and minimum-length rules.

Does ChatGPT Plus include API tokens?

A consumer chat subscription and API billing are separate products. Do not assume a chat plan includes an API allowance unless the provider explicitly documents one.

Is the ChatGPT API cheaper than a subscription?

It depends on workload and product needs. API usage is metered; a chat subscription provides a hosted interface with documented usage policies. The comparison is a workload estimate, not a conversion of messages into API tokens.

How does conversation history affect token cost?

When an application resends full history, later turns contain more input tokens. PiSkill calculates every turn independently so the cumulative growth is visible.

How can companies reduce LLM API costs?

Measure real input and output, choose the smallest technically suitable model, cache stable prompts, batch delay-tolerant work, trim history, summarize context and verify tool-call charges.