Tools
- AI API cost calculator: Compare monthly cost across GPT-6 and Claude models for your own volume.
- AI token counter: Estimate tokens for any text and see how much of each context window it uses.
- AI model picker: Pick your task and priority and get one recommended model.
Models these tools cover
- GPT-6 Luna (OpenAI)
- Claude Sonnet 5.5 (Anthropic)
- GPT-6 Sol (OpenAI)
- Claude Opus 5.5 (Anthropic)
Prices and context sizes were checked on September 24, 2026 and come from the makers' published pages. See the model pages for specs and sources.