If you are building applications with large language models, calculating monthly API bills can get complicated across different token pricing tiers.

I built a free interactive tool to compare monthly costs across 8 top models:
https://bunusradar.site/tools/ai-token-calculator

Key features:

• Real-time comparison: OpenAI o1, GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, and DeepSeek
• Toggle 50% discounts for OpenAI Batch API and Prompt Caching
• Instant estimates per 1,000 requests

Hope this helps anyone planning their next LLM build!