apicost

Know your AI API costs before you spend.

Calculate and compare LLM pricing from the terminal. 25+ models, all major providers.

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Install

pip install apicost

Usage

Calculate cost for a specific model

$ apicost calc gpt-4o -i 10000 -o 2000

  Model:    gpt-4o (OpenAI)
  Input:    10,000 tokens  →  $0.0250
  Output:   2,000 tokens   →  $0.0200
  ─────────────────────────────────
  Total:    $0.0450

Compare costs across ALL models

$ apicost compare -i 10000 -o 2000

  Cost comparison: 10,000 input + 2,000 output tokens

  Model                     Provider        Input        Output       Total
  ───────────────────────── ─────────────── ──────────── ──────────── ────────────
  ollama                    Local (Ollama)  $0.00 (free) $0.00 (free) $0.00 (free)
  mistral-nemo              Mistral         $0.000200    $0.000040    $0.000240
  llama-3.3-70b             Meta (Groq)     $0.000600    $0.000120    $0.000720
  deepseek-v3               DeepSeek        $0.0028      $0.000840    $0.0036
  gpt-4o-mini               OpenAI          $0.0015      $0.0012      $0.0027
  ...
  claude-opus-4-6           Anthropic       $0.0500      $0.0500      $0.10

List all models and pricing

$ apicost list

Use as a Python library

from apicost import calculate_cost, estimate_cost

# Exact token count
result = calculate_cost("gpt-4o", input_tokens=5000, output_tokens=1000)
print(f"Total: ${result['total_cost']:.4f}")

# Estimate from text
result = estimate_cost("claude-sonnet-4-6", input_text="Your prompt here...", output_tokens=500)
print(f"Estimated: ${result['total_cost']:.6f}")

Supported Models

Provider	Models
Anthropic	Claude Opus 4.6, Sonnet 4.6, Haiku 4.5
OpenAI	GPT-5.2, GPT-5.2 Mini, GPT-4o, GPT-4o Mini, o3, o3-mini
Google	Gemini 3.1 Pro, 3 Flash, 2.5 Pro, 2.0 Flash, 2.0 Flash-Lite
DeepSeek	V3, R1
Mistral	Large, Small, Nemo
Meta	Llama 4 Maverick, Scout, 3.3 70B (via Groq)
Cohere	Command R+, Command R
Local	Ollama, any local model ($0)

Commands

apicost calc <model> [-i INPUT] [-o OUTPUT]    # Calculate cost
apicost compare [-i INPUT] [-o OUTPUT]          # Compare all models
apicost list                                     # Show all models + pricing

Why?

Every AI developer asks "how much will this cost?" before making API calls. This tool answers that instantly, from your terminal or Python code, without looking up pricing pages.

Contributing

PRs welcome — especially for adding new models and keeping prices up to date.

License

MIT

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