Anthropic Claude API Cost Calculator

Estimate your monthly Anthropic Claude API bill from your own workload and rates. Enter the prices from your Anthropic Claude account (per 1M tokens) — we don't publish competitor pricing because it changes often.

Your estimate

Input tokens/month: — · Output tokens/month: —

Monthly cost: —

Fill in your rates to see the estimate.

Plugsky plans are flat monthly with unlimited fair-use across 30+ models — compare on pricing, or start on the free plan (2 free models, no card).

What the Anthropic Claude API Cost Calculator 2026 | Compare with Plugsky does

This calculator estimates Anthropic Claude API costs for your workload and puts them beside Plugsky equivalents. It focuses on monthly token usage so you can see the scale of spend at different volumes. The page also lists what the comparison covers: per-token input and output rates, projected monthly costs, free-tier limits, and common hidden costs such as data transfer and gateway overhead. It is built for developers and teams evaluating a migration away from Claude.

How to use it

  1. Estimate your monthly input and output token volumes.
  2. Apply published Claude rates to those volumes.
  3. Compare the totals with Plugsky equivalents for equivalent models.
  4. Add the hidden-cost categories the page lists.
  5. Review current plans and the trial before deciding.

FAQ

How do Claude token costs work?

Anthropic bills input and output tokens at separate rates, and longer prompts raise input cost. Multi-turn chat grows the prompt on every turn, so cost scales faster than message count. Cache and batch options change the math, so treat any comparison as an estimate and confirm current rates before committing.

What should I check before migrating from Claude?

Confirm message and tool-call compatibility, streaming behaviour, JSON mode support, and how your prompts map to the new model. Plugsky's API is OpenAI-compatible, which usually means changing the base URL and API key. Test on representative prompts before moving production traffic.

Are there hidden Claude API costs?

Data transfer, gateway or proxy layers, observability tooling and storage of prompts or logs can add cost outside the token bill. Some providers also charge for fine-tuning and embeddings separately. The comparison on this page lists these categories so your budget is not based on tokens alone.

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Canonical pricing and plans: plugsky.com/#sec-pricing · Terms · SLA · Docs

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