Calcis

What it does

Know exactly what every LLM API call will cost before you make it. Pre-flight cost estimation for OpenAI, Anthropic, and Google models. 25+ models tracked. Prices updated within hours of provider announcements. Works in your browser, CLI, GitHub Action, VS Code, LangChain, LlamaIndex, Vercel AI SDK, and as an MCP server for Claude Desktop and Cursor. No more bill shock. Estimate first, ship with confidence.

Stop your agent before it spends what you can't afford. Predict cost across 28 models. Block PRs that blow your budget. CI, VS Code, CLI, and framework integrations for OpenAI, Anthropic, and Google.

Pre-flight cost guardrails for every LLM API call. Predict spend, set budgets, block PRs that blow them. 36 models across OpenAI, Anthropic, and Google. Demo cycles every 8s · edit to pin. · 87 in / ~ 35 out tokens Agent loops, runaway batch jobs, and RAG queries that 10x context overnight are the three patterns that break budgets. Calcis catches all three before the call leaves your code. Observability tools surface the spend after it has already happened. By the time the dashboard turns red, the invoice has already moved. We sit one step earlier in the loop: predict the cost, set the cap, block the PR before the regression ships. The name is older than the category. Roman merchants…from calcis.dev

• 
  Free LLM API Pricing Calculator2024 · docsbot.ai · ▲175

  Calculate and compare the cost of the latest LLM APIs

• 
  Tokenomy.ai2025 · tokenomy.ai · ▲105

  See your LLM token bill before you hit send.

• 
  Price Per Token – LLM API Pricing Data2025 · pricepertoken.com · ▲339

  The LLM providers are constantly adding new models and updating their API prices. Anyone building AI applications knows that these prices are very important to their bottom line. The only place I am aware of is going to these provider's individual website pages to check the price per token. To solve this inconvenience I spent a few hours making pricepertoken.com which has the latest model's up-to-date prices all in one place. Thinking about adding image models too especially since you have multiple options (fal, replicate) to use the same model and the prices are not always the same.

• 
  LLM Pricing2024 · ailesson.io · ▲178

  LLMs price comparison tool developed and updated by LLM

• 
  Frugon – Find which LLM calls a cheaper model could handle (local, MIT)Jul 2026 · github.com · ▲67

  I started leaning in on AI heavily this year, as I wanted to get more done autonomously, but then my token usage climbed dramatically to the point where my weekly quota would run out before the end of the week, sometimes a couple of days into the week. I realised I had to do something about it else I'd have to double my spend. So I decided to start tracking my cost per task type. This revealed that a lot of my spend went to searches/scans or simple things like scouting tasks. I then decided to turn this into a simple CLI tool that can be used to read your OpenAI-style logs locally, and…

• 
  AI Cost Bar2025 · aicostbar.com · ▲13

  Calculate LLM API call costs right from the menubar

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 18d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 18d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 19d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21d ago · stillwet.art

• 
  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 30d ago · world.pixverse.video

• 
  Beam.win▲378

  Run AI agents on one Mac and use its windows on another

  AI · 4d ago · beam.win

• 
  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

• 
  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

• 
  Fathom 3.0▲800

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

• 
  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

  Life & fun · Apr 2026 · sam-burns.com

• 
  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app