Tokensense
See exactly what your LLM calls cost – instantly
Tokensense launched on March 24, 2026.
What it does
Tokensense-Ai is a free LLM token cost calculator built for developers, AI engineers, and prompt designers who want to estimate API costs before going live. When you build with large language model APIs like OpenAI, Anthropic Claude, or Google Gemini, you're billed by the token — not the word, not the character. A single system prompt, a long user message, or an attached file can quietly balloon your cost-per-call. Tokensense-Ai makes that visible.
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Token price calculator for 400+ LLMs2024 · github.com · ▲268Hey HN! Tokencost is a utility library for estimating LLM costs. There are hundreds of different models now, and they all have their own pricing schemes. It’s difficult to keep up with the pricing changes, and it’s even more difficult to estimate how much your prompts and completions will cost until you see the bill. Tokencost works by counting the number of tokens in prompt and completion messages and multiplying that number by the corresponding model cost. Under the hood, it’s really just a simple cost dictionary and some utility functions for getting the prices right. It also accounts for…
Free LLM API Pricing Calculator2024 · docsbot.ai · ▲175Calculate and compare the cost of the latest LLM APIs
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