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AI Model Pricing

License: MIT

Curated pricing data for OpenAI and Anthropic AI models.

Simple JSON file with verified pricing for 80+ models. Manually maintained from official sources.

🚀 Usage

import requests

url = "https://raw.githubusercontent.com/cylestio/ai-model-pricing/main/latest.json"
pricing = requests.get(url).json()

# Get model price
model = pricing['models']['openai']['gpt-4o']
print(f"${model['input']}/1M input, ${model['output']}/1M output")

# Calculate cost
def calc_cost(model_name, input_tokens, output_tokens):
    for models in pricing['models'].values():
        if model_name in models:
            m = models[model_name]
            return (input_tokens/1_000_000)*m['input'] + (output_tokens/1_000_000)*m['output']

cost = calc_cost("gpt-4o", 1500, 500)
print(f"Cost: ${cost:.6f}")

📦 What's Included

Anthropic (16 models)

  • Latest: Claude Sonnet 4.5, Haiku 4.5, Opus 4.1
  • Legacy: Claude 4, 3.7, 3.5, 3

OpenAI (66 models)

  • Latest: GPT-5 series, GPT-4.1, GPT-4o, o3/o4 series
  • Legacy: GPT-4 Turbo, o1 series, GPT-3.5

All prices in USD per 1M tokens.

🔗 Access

Direct JSON:

https://raw.githubusercontent.com/cylestio/ai-model-pricing/main/latest.json

CDN (faster):

https://cdn.jsdelivr.net/gh/cylestio/ai-model-pricing@main/latest.json

📁 Format

{
  "last_updated": "2025-11-20T00:00:00+00:00",
  "models": {
    "anthropic": {
      "claude-sonnet-4-5-20250929": {
        "input": 3.0,
        "output": 15.0,
        "description": "Claude Sonnet 4.5"
      }
    },
    "openai": {
      "gpt-4o": {
        "input": 2.5,
        "output": 10.0,
        "description": "GPT-4o"
      }
    }
  },
  "sources": {
    "anthropic": "https://claude.com/pricing#api",
    "openai": "https://platform.openai.com/docs/pricing"
  }
}

🤖 For AI Agents

See MANUAL_UPDATE_GUIDE.md for update instructions.

Quick prompt:

Update latest.json per MANUAL_UPDATE_GUIDE.md

Sources:
- Claude: https://claude.com/pricing#api
- OpenAI: https://platform.openai.com/docs/pricing

📝 Data Sources

📜 License

MIT License - See LICENSE

Manually curated • No warranty • Verify with official sources