Context Peek vs Anthropic Token Counter
How they actually differ.
Anthropic's counter is the source of truth for Claude. Context Peek is the multi-model dashboard for teams shipping against Claude, GPT, and Gemini at the same time.
Context Peek
by Developers Digest
Multi-model token + context inspector
Context Peek counts tokens across multiple model families (Claude, GPT, Gemini, Llama) in one place, visualizes context window usage, and flags when a prompt is about to overflow. Built for devs juggling more than one provider.
Visit Context Peek
Anthropic Token Counter
by Anthropic
Official Claude tokenizer
Anthropic's token counter is the official, authoritative way to count tokens for Claude models via the Messages API count_tokens endpoint. Exact, version-correct, and the source of truth for Claude pricing.
Visit Anthropic Token CounterSide by side
| Dimension | | |
|---|---|---|
| Models supported | Claude, GPT, Gemini, Llama in one UI | Claude only |
| Authority | Approximations, calibrated to provider tokenizers | Official Anthropic count, billing-accurate for Claude |
| Signup required | No for the free tier | Yes, Anthropic API key |
| Pricing | Free tier, paid for batch + history | Free endpoint with API key |
| Visualization | Context window heatmaps + budget warnings | Plain JSON token count |
| Best for | Multi-provider apps and prompt budgeting | Exact Claude billing checks |
Honest verdict
Pick Context Peek when
you ship against multiple model providers, you want a visual context budget, and approximate-but-fast counts beat round-tripping each provider's API.
Pick Anthropic Token Counter when
you only target Claude, you need billing-accurate counts straight from Anthropic, and you are fine wiring up an API key.
Both tools are good at what they do. This page is not a takedown of Anthropic Token Counter; it is a positioning guide for developers deciding between the two.
