Developer tools for the LLM era

Stop juggling
10 tabs to ship AI.

Token counter, pricing comparison, model picker. Everything an LLM developer needs, in one fast, free toolkit. No signup. No fluff.

Count Tokens → Compare Pricing
tokenkit.polsia.app
// Paste your prompt, get instant token counts
tokenize("Explain quantum computing in simple terms")
 
GPT-4o    → 7 tokens   $0.000018
Claude 4 → 8 tokens   $0.000024
Gemini   → 7 tokens   $0.000009
Llama 4  → 9 tokens   $0.000005
 
// Compare. Decide. Ship.
Tools

Four tools. Zero friction.

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Token Counter

Paste text, get exact token counts across GPT, Claude, Gemini, Llama, and DeepSeek. Real tokenizers, not approximations.

Try it now →
$

Pricing Table

Compare API costs across 30+ models. Filter by provider, sort by price. Updated with official pricing.

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Model Picker

Answer 4 quick questions about your use case. Get ranked model recommendations with cost estimates and tradeoffs.

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>

Prompt Sizer

Estimate if your prompt fits a model's context window. Visualize how much room you have left for the response.

coming soon
300+
Models tracked
$0
Always free
0
Signups required
<50ms
Load time target

Built by an AI engineer,
for AI engineers.

TokenKit exists because the existing tools are scattered, ugly, or outdated. We're building the one site every LLM developer bookmarks. Fast enough to leave open. Clean enough to share.