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Hands-on tools that turn AI configuration into a few clicks. Score prompts, estimate costs, audit security, and ship faster.
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Estimate monthly costs across LLM providers and see how multi-model routing saves 50-80%.
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Choose from GPT-5, Claude 4.5, Gemini 3, Llama, Mistral, and more
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Accurate token counting for all major AI providers and models
| Provider | Models | Context Window |
|---|---|---|
| OpenAI | GPT-5.2GPT-5.2 ProGPT-5 miniGPT-4.1GPT-4.1 miniGPT-4.1 nanoo4-mini | Up to 400K |
| Anthropic | Claude Opus 4.5Claude Sonnet 4.5Claude Opus 4Claude Sonnet 4Claude Haiku 3.5 | 200K (1M beta) |
Gemini 3 ProGemini 3 FlashGemini 2.5 ProGemini 2.5 FlashGemini 2.0 Flash | Up to 2M | |
| Meta | Llama 3.3 70BLlama 3.2 90BLlama 3.1 405BLlama 3.1 70BLlama 3.1 8B | Up to 128K |
| Mistral | Mistral LargeMistral MediumMistral SmallCodestralPixtral | Up to 128K |
Learn about tokens, pricing, and AI development
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Trace an LLM call from fetch() to first token: DNS, TCP, TLS 1.3, HTTP/2 vs HTTP/3 (QUIC), and SSE streaming — and why TTFT, not transport, dominates.
Why round-robin and L4 load balancing fail for LLM traffic, how KV-cache-aware routing and the Gateway API Inference Extension cut TTFT, and who actually needs this.
Common questions about AI tokens, pricing, and our tools
AI Tools Kit provides essential utilities for developers and content creators working with large language models like GPT-5, Claude 4.5, Gemini 3, and other AI systems. Our token calculator helps you understand exactly how your text will be processed by AI models, enabling you to optimize prompts and reduce API costs.
Accurately count tokens before sending requests to OpenAI, Anthropic, or other AI providers. Understand how tokenization works and see exactly how your text breaks down into tokens. Support for multiple models including GPT-5, GPT-4.1, Claude 4.5, and more.
Token Optimized Object Notation (TOON) reduces your JSON payload size by up to 50%, saving tokens and reducing API costs. Convert between JSON and TOON formats instantly with our free converter tool.
Browse our curated collection of effective prompts for writing, coding, business, education, and creative tasks. Copy and customize prompts to get better results from AI models.